SANDIA NATIONAL LABORATORIES Albuquerque, New Mexico SPECIFICATION 16464 (SE-US-83-2) SPECIFICATIONS FOR POWER TRANSFORMER

SUBSTATION 37 Project: 1391-89-A l0 5/1/91 115/12.47kV 12/16/20MVA Transformer 1.0 SCOPE These specifications cover one (1) unit substation to be furnished complete, as specified herein and as shown on the attached drawings in Appendix 4. This unit substation will be installed to transform power from the Purchaser's effectively grounded 115 kV transmission system to its effectively grounded 13.8 kV distribution system. 2.0 SERVICE CONDITIONS This unit will be rated for installation at an elevation of 5,000 feet above sea level. The ambient temperature will range from minus 20"F to plus 110"F. All parts and equipment shall be capable of operation under severe wind and dust conditions. All equipment shall be fully rated, as specified for the above altitude. All equipment shall be dust proof. This unit's bushings, circuit breakers, and all accessories shall be capable of withstanding the maximum seismic forces to be encountered in a 35-year period in a Zone 2 earthquake area. 3.0 STANDARDS This unit shall be designed, tested, and assembled by a single Seller, in accordance with the latest applicable IEEE, NEMA, IPCEA, ANSI, and OSHA standards, and as detailed in this specification. The Seller shall notify the Purchaser of any changes in code or standards affecting this equipment. Code or standards changes after fabrication shall be reviewed by Purchaser for impact on equipment. In the event of conflicts between the standards and/or the specifications, the most stringent shall take precedence. 4.0 NEW MATERIAL Seller shall provide new (not used or recognition and not of such age or so deteriorated as to impair their usefulness or safety) materials and components. If at any time Seller believes that furnishing of materials or components which are not new is necessary or desirable, he shall notify Purchaser immediately, in writing, including reasons therefor and proposing the consideration which will flow to Purchaser if authorization to use such materials or components is granted.

1 1.0 SCOPE SANDIA NATIONALLABORATORIES Albuquerque, New Mexico SPECIFICATION 16464 (SE-US-83-2) SPECIFICATIONS FOR POWER TRANSFORMER SUBSTATION 37 Project: 1391-89-AlO 5/1/91 115112.47kV 12/16120MVA Transformer

These specifications cover one (1) unit substation to be furnished complete, as specifiedherein and as shown onthe attached drawings in Appendix 4. This unit substation will be installed to transform power from the Purchaser's effectively grounded 115 kV transmission system to its effectively grounded 13.8 kV distribution system. 2.0 SERVICE CONDITIONS This unit will be rated for installation at an elevation of5,000 feet above sea level. The ambient temperature will range from minus 20"F to plus 11O"F. All parts and equipment shall be capable of operation under severe wind and dust conditions. All equipment shall be fully rated, as specified for the above altitude. All equipment shall be dustproof. This unit's bushings, circuitbreakers, and all accessories shall be capable ofwithstanding the maximum seismic forces to be encountered in a 35-yearperiod in a Zone 2 earthquake area. 3.0 STANDARDS This unit shall be designed, tested, and assembled bya single Seller, in accordance with the latest applicable IEEE, NEMA, IPCEA, ANSI, and OSHA standards, and as detailed inthis specification. The Seller shall notify the Purchaser ofany changes in code or standards affectingthis equipment. Code or standards changes after fabrication shall be reviewed byPurchaser for impact onequipment. Inthe event of conflicts between the standards and/or the specifications, the most stringent shall take precedence. 4.0 NEW MATERIAL Seller shall provide new (not used or recognition and not ofsuch age or so deteriorated as to impair their usefulness or safety) materials and components. Ifat any time Sellerbelieves that furnishing ofmaterials or components which are not new is necessary or desirable, he shall notify Purchaser immediately, in writing, including reasons therefor and proposing the consideration which will flow to Purchaser ifauthorization to use such materials or components is granted.

- 1 -5.0 INSPECTION

All materials and components shall be subject to inspection and test by Purchaser, to the extent practicable at all times and places, including the period of manufacture, and in any event prior to acceptance. If any inspection and test is made by Purchaser on the premises of Seller or a subcontractor, Seller, without additional charge shall make available to Purchaser's inspectors all reasonable facilities and assistance, including drawings, specifications, certifications, and other related data. If any such data is proprietary, Purchaser agrees to comply with reasonable procedures for safeguarding such data. If Purchaser inspection or test is made at a point other than the premises of Seller or a subcontractor, it shall be at the expense of Purchaser except as otherwise provided in this specification. The inspection and test by Purchaser shall not relieve the Seller of any responsibility regarding defects or other failures to meet the requirements of this specification. 6.0 REJECTED MATERIAL During manufacture, if any material or components are defective in material, workmanship, or otherwise not in conformity with the requirements of this specification, Purchaser shall have the right to either reject them or to require their correction at Seller's expense. Upon or after delivery, if material received is rejected for defects which are Seller's responsibility, Seller shall have the option of having material returned or corrected at Purchaser's facility. If Seller elects to have the defective material returned, he will be responsible for Purchaser's handling, packaging, shipping, and administrative costs. If material is to be corrected, Seller must promptly do so or Purchaser may contract, replace, or otherwise correct material and charge to Seller his costs. 7.0 FINISH 7.1 Surface Preparation Prior to painting, all steel surfaces shall be cleaned in accordance with the appropriate standards or the coating Seller's recommendations. The blast cleaning should be inspected and approved in accordance with the "Visual Pictorial Guide SSPC-VIS-1-67T," and a profile comparator. 7.2 Painting The Seller shall recommend a paint system which will conform to "A Guide to the Shop Painting of Structural Steel" published by the AISC and the Steel Structures Painting Council (SSPC).

2 5.0 INSPECTION All materials and components shall be subject to inspection and test by Purchaser, to the extent practicable at all times and places, including the period ofmanufacture, and in any event prior to acceptance. Ifany inspection and test is made byPurchaser onthe premises ofSeller or a subcontractor, Seller, without additional charge shall make available to Purchaser's inspectors all reasonable facilities and assistance, including drawings, specifications, certifications, and otherrelated data. Ifany such data is proprietary, Purchaser agrees to comply with reasonable procedures for safeguarding such data. IfPurchaser inspection ortest is made at a point other than the premises ofSeller or a subcontractor, it shall be at the expense of Purchaser except as otherwise provided in this specification. The inspection and test byPurchaser shall not relieve the Seller ofany responsibility regarding defects or other failures to meet the requirements ofthis specification. 6.0 REJECTED MATERIAL During manufacture, ifany material orcomponents are defective in material, workmanship, or otherwise not in conformity with the requirements ofthis specification, Purchaser shall have the right to eitherreject them orto require their correction at Seller's expense. Upon or after delivery, ifmaterial received is rejected for defects which are Seller's responsibility, Seller shall have the option ofhaving material returned or corrected at Purchaser's facility. IfSeller elects to have the defective material returned, he will be responsible for Purchaser's handling, packaging, shipping, and administrative costs. Ifmaterial is to be corrected, Sellermust promptly do so or Purchaser may contract, replace, or otherwise correct material and charge to Sellerhis costs. 7.0 FINISH 7.1 Surface Preparation Prior to painting, all steel surfaces shall be cleaned in accordance with the appropriate standards orthe coating Seller's recommendations. Theblast cleaning should be inspected and approved in accordance with the "Visual Pictorial Guide SSPC-VIS-1-67T," and a profile comparator. 7.2 Painting The Seller shall recommend a paint system which will conform to "A Guide to the Shop Painting of Structural Steel" publishedbythe AISC and the Steel Structures Painting Council (SSPC).



### - 2 -The Seller shall guarantee the adhesion of this system to the structure for a minimum period of five years

from date of shipment. Liability shall be for all materials, equipment, and field labor to repaint structure in the deenergized condition.Before painting, all welds shall be sandblasted to remove flux residues and all surfaces cleaned per SSPCSP6 or the paint manufacturer's recommendations. All structures that are to be painted shall be hermetically sealed. Paint thickness shall be per SSPC-PAI or the paint manufacturer's recommendations. The Seller shall utilize detailed application and inspection procedures to assure coating integrity. All painters shall be qualified. The Seller's paint system must be easily adaptable to field touch-up by either spray, brush, or roller after the damaged area has been thoroughly cleaned and solvent wiped. Sufficient paint shall be provided for field touch-up. The paint system shall consist of a primer coat, with the second and final coats of ANSI-70, or an approved equivalent in substance, quality, and color. The interior of the transformer tank shall be painted ANSI-70 or white. The interior of the switchgear (i.e., Sheltered Aisle) shall be painted the same color as the exterior of the switchgear. 8.0 DATA TO BE FURNISHED BY ALL BIDDERS Bidder shall submit with his proposal the following: Unit price. DC power requirements (if any). Itemized list of all standards to be used in the bids. Typical drawings showing approximate shipping and final dimensions, weights, etc. Typical instruction book with appropriate drawings explaining receiving, handling, and assembly of unit, especially with the following details: List of transformer and/or switchgear accessories that are freestanding requiring separate foundations.

3 The Seller shall guarantee the adhesion ofthis system to the structure for a minimumperiod offive years from date ofshipment. Liability shall befor all materials, equipment, and field laborto repaint structure in the deenergized condition. Before painting, all welds shall be sandblasted to remove flux residues and all surfaces cleaned per SSPCSP6 or the paint manufacturer's recommendations. All structures that are to be painted shall behermetically sealed. Paint thickness shall beper SSPC-PAI or the paint manufacturer's recommendations. The Seller shall utilize detailed application and inspectionprocedures to assure coating integrity. All painters shall be qualified. The Seller's paint system must be easily adaptable to field touch-up by either spray, brush, orroller after the damaged areahas beenthoroughly cleaned and solvent wiped. Sufficientpaint shall beprovided for field touch-up. Thepaint system shall consist ofa primer coat, with the second and final coats ofANSI-70, or an approved equivalent in substance, quality, and color. The interior ofthe transformer tank shall be painted ANSI-70 or white. The interior ofthe switchgear (i.e., ShelteredAisle) shall bepainted the same color as the exterior ofthe switchgear. 8.0 DATA TO BEFURNISHED BY ALLBIDDERS Bidder shall submit with his proposal the following: Unit price. DC powerrequirements (ifany). Itemized list ofall standards to beused in the bids. Typical drawings showing approximate shipping and final dimensions, weights, etc. Typical instructionbookwith appropriate drawings explainingreceiving, handling, and assembly ofunit, especially with the following details: List oftransformer and/or switchgear accessories that are freestanding requiring separate foundations.

- 3 -List of items assembled and shipped in place with the transformer and/or switchgear.

List of all items to be assembled in the field. Estimate of total man-hours required to assemble entire unit. Added cost for all available extended warranties. Added cost for unenergized warranty and the length of time this warranty will be in effect. An outline of the transformer and switchgear configuration (giving overall dimensions). An alternate bid on the transformer alone. An alternate bid on the switchgear alone. 8.1 Installation Services of Seller's field engineer shall be furnished to oversee assembly and testing of transformer and/or switchgear. The cost of this service shall be included in the substation price quoted. List the cost per day and the number of days included separately. 8.2 Schedule Of Shipment Quote best delivery and maximum possible delay which might be encountered. Bidder shall state method of shipping as part of bid. If possible, unit shall be shipped by truck. 8.3 Exceptions to the Specification It is the responsibility of the Bidder to clearly state all exceptions to this specification. All exceptions shall be listed in a separate section of the Bidder's proposal labeled "Exceptions To The Specification." Failure to list any and all exceptions may result in rejection of the bid. 8.4 Data Furnished By Transformer Bidders The charge for performing ANSI-C57.12.90A short-circuit test. Seller will be notified thirty (30) days prior to shipment of transformer if it is to be short-circuit tested. The Purchaser reserves the right to specify the location for this testing. The Seller will be notified of the location at the time of notification of intent to test. In the event of transformer failing the short-circuit test, the Seller shall correct all defects and retest at his expense. Retesting shall be at testing facility specified by Purchaser. Should the unit fail the retest, the

4 List ofitems assembled and shipped in place with the transformer and/or switchgear. List ofall items to be assembled in the field. Estimate oftotal man-hours required to assemble entire unit. Added cost for all available extended warranties. Added costfor unenergized warranty and the length oftime this warranty will be in effect. An outline ofthe transformer and switchgear configuration (giving overall dimensions). An alternate bid on the transformer alone. An alternate bid onthe switchgear alone. 8.1 Installation Services ofSeller's field engineer shall be furnished to oversee assembly and testing oftransformer and/or switchgear. The cost ofthis service shall be included in the substationprice quoted. List the cost per day and the number ofdays included separately. 8.2 Schedule OfShipment Quotebest delivery and maximum possible delay which mightbe encountered. Bidder shall state method ofshipping as part ofbid. Ifpossible, unit shall be shipped by truck. 8.3 Exceptions to the Specification Itis the responsibility ofthe Bidderto clearly state all exceptions to this specification. All exceptions shall be listed in a separate section ofthe Bidder's proposal labeled "Exceptions To The Specification." Failure to list any and all exceptions may result in rejection ofthe bid. 8.4 DataFurnished ByTransformer Bidders The charge for performing ANSI-C57.12.90A short-circuit test. Seller will be notified thirty (30) days prior to shipment oftransformer ifit is to be short-circuit tested. The Purchaserreserves the right to specifythe location for this testing. The Seller will be notified ofthe location at the time ofnotification ofintent to test. In the event oftransformer failing the short-circuit test, the Seller shall correct all defects and retest at his expense. Retesting shall be at testing facility specifiedbyPurchaser. Should the unit fail the retest, the

- 4-Purchaser reserves the right to reject the unit. It is the manufacturer's responsibility to notify Purchaser

forty-five (45) days prior to shipment date. Failure to notify the Purchaser of the shipment date at the 45- day limit may result in cancellation of the purchase order.The Bidder shall submit a performance specification form with the bid. This form shall comply with ANSIC57.1200-1973, Appendix, page F-11. All loss data shall be supplied for the MVA specified in the loss evaluation section of this specification. Failure to complete this form will result in rejection of the bid. Added cost for performing a dissolved gas analysis on the transformer oil before and immediately after the following tests: Impulse tests Insulated power factor tests Switching surge tests Corona test Excitation tests Price deduction for omitting high voltage lightning arresters. Mounting provisions shall be included in the quote. Whether or not transformer will require field installation of the main tank cover. Bushing outline. LTC type and manufacturer of LTC. Bidder shall furnish alternate price for a vacuum LTC. Bidder shall fill out the transformer bid data sheet in Appendix 1. 8.5 Data Furnished by Switchgear Bidders Bidder shall indicate whether or not the protected aisle will be shipped assembled and, if not, the additional cost for factory assembly. The guaranteed short-circuit current rating in kiloamperes for the 13.8 kV circuit breakers at 13.8 kV. These short circuit currents shall be defined as the maximum symmetrical interrupting capability in kiloamperes. Purchaserreserves the right to reject theunit. Itis the manufacturer's responsibility to notifyPurchaser forty-five (45) days prior to shipment date. Failure to notifythe Purchaser ofthe shipment date at the 45- day limitmayresult in cancellation ofthe purchase order. The Bidder shall submit a performance specificationform with the bid. This form shall comply with ANSIC57.1200-1973, Appendix, page F-11. All loss data shall be supplied for the MVA specified inthe loss evaluation section ofthis specification. Failureto complete this form will result inrejection ofthebid. Added cost for performing a dissolved gas analysis on the transformer oil before and immediately after the following tests: Impulse tests Insulated powerfactor tests Switching surge tests Coronatest Excitationtests Price deduction for omittinghigh voltage lightning arresters. Mounting provisions shall be included in the quote. Whether ornot transformer will require field installation ofthe maintank cover. Bushing outline. LTC type and manufacturer ofLTC. Bidder shall furnish alternate price for a vacuumLTC. Bidder shall fill out the transformer bid data sheet in Appendix 1. 8.5 Data Furnishedby SwitchgearBidders Bidder shall indicate whether or not the protected aisle will be shipped assembled and, ifnot, the additional cost for factory assembly. The guaranteed short-circuit currentrating inkiloamperes for the 13.8 kV circuitbreakers at 13.8 kV. These short circuit currents shall be defined as the maximum symmetrical interrupting capability in kiloamperes.

- 5 -Bidder shall define type of circuit breaker included with bid.

If roll-out type load break disconnect tie switches can be provided, quote on providing two (2) and the associated reduction in price if one only is ordered. Bidder shall furnish saturation curves for all CTs. Bidder shall fill out the switchgear bid data sheet in Appendix 2. 8.6 Data to be Furnished by Seller 8.6.1 Drawings After receiving order, Seller shall submit to Purchaser's engineer, as soon as practicable, four sets of drawings, wiring diagrams, and associated data for approval. Drawings shall include a three-line elementary of all equipment on a one-to- one correlation without reference to typicals. After review of the above approval drawings, Public Service Company of New Mexico (PNM) will return one (1) copy of each drawing marked either "reviewed and accepted" or "reviewed and accepted as noted." At least 120 days prior to scheduled delivery of transformer and/or switchgear, Seller shall submit to Purchaser's engineer the following data: Six sets of certified drawings showing information necessary for foundation design, outline dimensions, wiring diagrams, etc. Six complete sets of operating instructions. Six complete sets of sectional views of equipment with parts numbered or labeled to facilitate ordering replacement parts. Six complete sets of sectional views of bushings with parts numbered or labeled to facilitate ordering replacement parts. Six sets of characteristics and ratio correction curves for bushing current transformers. Six copies of recommended spare parts list. Six copies of the completed nameplates (i.e., impedance, serial numbers, etc.) for each current transformer, potential transformer, and the power transformer. Prior to shipment, the Seller shall furnish one complete set of all drawings on reproducible mylar sepias and aperture cards for each item purchased, and six copies of the completely filled in final nameplate. Each of



### 6 Bidder shall define type ofcircuitbreaker included with bid. Ifroll-out type load break disconnect tie switches canbe provided, quote onproviding two (2) and the associated reduction inprice ifone only is ordered. Bidder shall furnish saturation curves for all CTs. Bidder shall fill outthe switchgearbid data sheet in Appendix 2. 8.6 Datato beFurnishedby Seller 8.6.1 Drawings Afterreceiving order, Seller shall submitto Purchaser's engineer, as soon as practicable, four sets of drawings, wiring diagrams, and associated data for approval. Drawings shall include a three-line elementary ofall equipment on a one-to- one correlation without reference to typicals. After review ofthe above approval drawings, Public Service Company ofNew Mexico (PNM) will return one (1) copy ofeach drawing marked either "reviewed and accepted" or "reviewed and accepted as noted." At least 120 days prior to scheduled delivery oftransformer and/or switchgear, Seller shall submitto Purchaser's engineer the following data: Six sets ofcertified drawings showing informationnecessary for foundation design, outline dimensions, wiring diagrams, etc. Six complete sets ofoperating instructions. Six complete sets ofsectional views ofequipment with parts numbered or labeled to facilitate ordering replacement parts. Six complete sets ofsectional views ofbushings with parts numbered or labeled to facilitate ordering replacement parts. Six sets ofcharacteristics and ratio correction curves for bushing current transformers. Six copies ofrecommended spare parts list. Six copies ofthe completed nameplates (i.e., impedance, serial numbers, etc.) for each current transformer, potential transformer, and the powertransformer. Priorto shipment, the Seller shall furnish one complete set ofall drawings onreproducible mylar sepias and aperture cards for each item purchased, and six copies ofthe completelyfilled in final nameplate. Each of



### - 6 -the sepias and aperture cards shall be marked in permanent print with the purchaser's purchase order,

destination of equipment, Seller's requisition number, Seller's factory number, Seller's shop order number, and date. A sepia of each of the completed nameplates shall also be furnished. All of the above documents shall be sent to: Robert L. Perlichek Substation Engineer Public Service Company of New Mexico Alvarado Square Albuquerque, NM 87158 As soon as test data is available, six certified copies of this information will be furnished. 8.6.2 Shipment The transformer, switchgear, and transformer oil shall be shipped f.o.b. destination with freight prepaid and allowed, to a location specified on the Purchase Order. The transformer shall be filled with certified dry breathing air for shipping, if shipped by rail. Transformer can be shipped oil filled if shipped by truck. Transformer insulating oil shall be shipped by tank truck to the site specified by the Purchaser, if transformer is shipped by rail. Demurrage charges, if applicable, must be fully described as to costs, the free time period in days or months at which point costs would commence, and the site where the free time period would commence. The Seller must furnish documentation satisfactory to PNM, substantiating any demurrage charges incurred, prior to the payment of such charges. Two impact recorders shall be provided: one on the rail car or truck bed and one on the main tank. Purchaser's personnel will remove recorders, review recorder charts, and return recorders and charts to Seller. Recorders shall be operative for the entire "in-transit" time. An internal inspection will be made if: Both the recorders fail to record the entire trip. The transformer is subjected to horizontal impacts above Zone 2. Visible load shifting is apparent on rail car or trailer. In the event an internal inspection is made, the Seller shall be responsible for the cost (to PNM) incurred for the inspection.

7 the sepias and aperture cards shall be marked inpermanentprint with the purchaser's purchase order, destination ofequipment, Seller's requisition number, Seller's factory number, Seller's shop ordernumber, and date. A sepia ofeach ofthe completed nameplates shall also befurnished. All ofthe above documents shall be sentto: Robert L. Perlichek SubstationEngineer Public Service Company ofNew Mexico Alvarado Square Albuquerque, NM 87158 As soon as test data is available, six certified copies ofthis information will befurnished. 8.6.2 Shipment The transformer, switchgear, and transformer oil shall be shippedf.o.b. destination with freight prepaid and allowed, to a location specified onthe Purchase Order. Thetransformer shall befilled with certified drybreathing air for shipping, ifshippedbyrail. Transformer canbe shipped oil filled ifshippedby truck. Transformer insulating oil shall be shipped bytank truck to the site specifiedby the Purchaser, if transformer is shipped byrail. Demurrage charges, ifapplicable, mustbe fully described as to costs, the free time period in days or months at which point costs would commence, and the site where the free timeperiod would commence. The Sellermust furnish documentation satisfactoryto PNM, substantiating any demurrage charges incurred, priorto the payment ofsuch charges. Two impactrecorders shallbeprovided: one ontherail car ortruck bed and one onthe main tank. Purchaser's personnel will remove recorders, review recorder charts, and returnrecorders and charts to· Seller. Recorders shall be operative for the entire "in-transit" time. An internal inspection will bemade if: Boththerecorders fail to record the entiretrip. The transformer is subjected to horizontal impacts above Zone 2. Visible load shifting is apparent onrail car ortrailer. Inthe event an internal inspection is made, the Seller shall beresponsible for the cost (to PNM) incurred for the inspection.



### - 7 -The Seller shall notify the Purchaser approximately seven (7) days prior to shipment.

Six weeks before shipment, the following information must be provided: At least two copies of a complete bill of material. Demurrage and detention schedules. Detailed receiving and handling instructions. Two weeks before shipment, the following is required: Railroad car and truck numbers and routing. Departure dates. Estimated dates of arrival. Detailed packing lists for each shipment. 8.6.3 Shipping Preparations Seller shall adequately prepare all of the equipment for shipment. All equipment shall be weatherproof packaged for extended outdoor storage, with recommended storage instructions. All equipment shall be clearly identified with a securely fastened, weatherproof tag, labeled with Purchaser's Purchase Order Number, Specification Number (including revision number), equipment number (if any) and service. All shipping containers, packing lists, Bills of Material, correspondence, etc., shall be identified with the same above information. All boxes, shipping containers, crates, etc., shall have a weatherproof packing list firmly attached to the exterior and a duplicate packing slip packed inside. The Seller shall be responsible for his subcontractor(s) adhering to the above shipping preparations on all equipment and items shipped to the Purchaser by the subcontractor(s). 8.6.4 Warranty The Seller shall at its own expense repair or replace any equipment manufactured or supplied by the Seller for any failure of the equipment or any component or part to conform to this specification or any defect or material workmanship or design thereof. The Seller, at its own expense, shall also cause to be remedied damage to equipment, the site, or buildings or the contents thereof which is the result of any such failure or defect, and restore any damage to any component of the station. 8.6.4.1 Warranty Repair

8 The Seller shall notify the Purchaser approximately seven (7) days prior to shipment. Six weeks before shipment, the following information mustbeprovided: At least two copies ofa completebill ofmaterial. Demurrage and detention schedules. Detailedreceiving and handling instructions. Two weeks before shipment, the following is required: Railroad car and trucknumbers and routing. Departure dates. Estimated dates ofarrival. Detailedpacking lists for each shipment. 8.6.3 Shipping Preparations Seller shall adequately prepare all ofthe equipment for shipment. All equipment shall be weatherproof packaged for extended outdoor storage, with recommended storage instructions. All equipment shall be clearly identified with a securelyfastened, weatherprooftag, labeled with Purchaser's Purchase Order Number, SpecificationNumber (including revision number), equipment number (ifany) and service. All shipping containers, packing lists, Bills ofMaterial, correspondence, etc., shall be identified with the same above information. All boxes, shipping containers, crates, etc., shall have a weatherproofpacking list firmly attached to the exterior and a duplicate packing slip packed inside. The Seller shall beresponsible for his subcontractor(s) adhering to the above shipping preparations on all equipment and items shipped to the Purchaserbythe subcontractor(s). 8.6.4 Warranty The Seller shall at its own expense repair or replace any equipment manufactured or supplied bythe Seller for any failure ofthe equipment or any component orpart to conform to this specification or any defect or material workmanship or design thereof. The Seller, at its own expense, shall also cause to beremedied damage to equipment, the site, or buildings or the contents thereofwhich is the result ofany such failure or defect, and restore any damage to any component ofthe station. 8.6.4.1 WarrantyRepair

- 8 -In the event any equipment or component is repaired or replaced by the Seller during the warranty

period, then the equipment or component repaired or replaced shall be fully warranted for the same period specified in the specification from the date of repair or replacement. 8.6.4.2 Warranty Period

The warranty period shall be fully effective for twelve (12) months after energization, but need not to exceed eighteen (18) months after shipment. 8.6.4.3 Warranty Liability

As part of the Seller's warranty, the Seller shall reimburse the cost (to PNM) of all oil-handling resulting from defects both in workmanship or design. 8.6.5 Quality Assurance The Seller shall conform to Quality Assurance Requirements detailed in Appendix 3. In addition the Seller shall provide the following "Certificate of Conformance" with this transformer/switchgear: The Company certifies that this unit meets all the requirements of PNM's Specification SE-US-83-2 with the following exceptions agreed to by both Seller and Purchaser on: 1. 2. 3. PNM's Terms, Conditions and Specifications shall take precedence unless otherwise mutually agreed upon in writing. 9.0 POWER TRANSFORMERS 9.1 RATING SECTION The transformer shall be a two winding 115 kV Delta/13.8 kV Delta with internal (Hepner type winding) or external grounding bank on the transformer secondary side.*

OR Three winding 115 kV WYE (ungrounded) /13.8 kV grounded wye with buried Delta tertiary winding.

9 Inthe event any equipment or component is repaired or replaced by the Seller during the warranty period, then the equipment or componentrepaired or replaced shall be fully warranted for the same period specified in the specification from the date ofrepair or replacement. 8.6.4.2 WarrantyPeriod The warrantyperiod shall be fully effective for twelve (12) months after energization, but need not to exceed eighteen (18) months after shipment. 8.6.4.3 Warranty Liability As part ofthe Seller's warranty, the Seller shall reimburse the cost (to PNM) ofall oil-handling resulting from defects both in workmanship or design. 8.6.5 Quality Assurance The Seller shall conform to QualityAssurance Requirements detailed in Appendix 3. Inaddition the Seller shall provide the following "Certificate ofConformance" with this transformer/switchgear: The Company certifies that this unit meets all the requirements ofPNM's Specification SE-US-83-2 with the following exceptions agreed to byboth Seller and Purchaser on: 1. 2. 3. PNM's Terms, Conditions and Specifications shall take precedence unless otherwise mutually agreed upon in writing. 9.0 POWER TRANSFORMERS 9.1 RATING SECTION The transformer shall be a two winding 115 kV Delta/13.8 kV Delta with internal (Hepner type winding) or external grounding bank on the transformer secondary side.

## * OR Three winding 115 kV WYE (ungrounded) /13.8 kV grounded wye with buried Deltatertiary winding.

- 9 -This transformer system, including grounding equipment, shall be rated for continuous current

unbalance duty of at least 1,400 kVA. This transformer system shall also provide a class A grounded secondary system (XO/Xl). Both windings of this transformer shall be self-protecting and shall be oil immersed with the following ratings: OA output at 55°C, 65°C: 1*kVA, 11.2 MVA OA/FOA OR OA/FA output at 55 °C, 65°C: 12.5 MVA, 14.0 MVA Average winding temperature rise: 55°C

Insulation class: 65°C Frequency: 60 Hertz Phase: 3 High-voltage rating: 115 ,000 volts Low-voltage: 13,800 volts Impedance: See Impedance Section Basic impulse insulation level: High voltage: 450 kV Low voltage : 110 kV 9.2 IMPEDANCE This transformer shall have a design impedance of 7.5 percent on a 10 MVA base from H (115 kV) to X (13.8 kV) with ANSI C57.12.00 standard @ 7.5 percent tolerances allowed. 9.3 BUSHINGS All bushings shall be sky grey, ANSI-70, in color. Bushing BIL's given are acceptable at an altitude of 5,000 feet. Low voltage bushings shall be 13.8 kV class, 110 kV BIL, side mounted, in segment 4, per ANSI C57.12.1Oa. 

## * This transformer system, including grounding equipment, shall be rated for continuous current unbalance duty ofat least 1,400 kVA. This transformer system shall also provide a class A grounded secondary system (XO/Xl). Both windings ofthis transformer shall be self-protecting and shall be oil immersed with the following ratings: OA output at 55°C, 65°C: 1*kVA, 11.2 MVA OAIFOA OR OAIFA output at 55°C, 65°C: 12.5 MVA, 14.0 MVA Average winding temperature rise: 55°C Insulation class: 65°C Frequency: 60 Hertz Phase: 3 High-voltagerating: 115,000 volts Low-voltage: 13,800 volts

Impedance: See Impedance Section Basic impulse insulation level:

9.2 IMPEDANCE High voltage: 450 kV Low voltage: 110 k V

This transformer shall have a design impedance of7.5 percent on a 10 MVAbase from H (115 kV) to X (13.8 kV) with ANSI C57.12.00 standard @ 7.5 percent tolerances allowed. 9.3 BUSHINGS All bushings shall be sky grey, ANSI-70, in color. Bushing BIL's given are acceptable at an altitude of 5,000 feet. Low voltage bushings shall be 13.8 kV class, 110 kV BIL, side mounted, in segment4, per ANSI C57.12.10a.

- 10-High voltage bushings shall be 115 kV class, 550 kV BIL, pocket mounted, in segment 3. Overall height

from base of the transformer to the top of the bushings shall not exceed fifteen (15) feet. The secondary neutral, if required, shall be brought out through one 13.8 kV class, 110 kV BIL, bushings, side mounted. An external core-ground test bushing shall be provided, top mounted. If a high side WYE connection is quoted, the high side neutral shall be left ungrounded and shall be brought outside of the transformer tank by means of a pocket or side mounted bushing. Provision for mounting a fourth (4th) station class, metal oxide, surge arrester shall be included in the high side WYE connection quotation. If a high side ungrounded wye connection is quoted, the manufacturer should suggest the BIL rating of the neutral end of the ungrounded wye and the rating of the lighting arrester to be attached thereto. 9.3.1 Bushing Terminals

All bushing terminal connectors will be furnished by the transformer Seller. The connectors will be standard 4-hole NEMA bronze stud connectors compatible with the maximum current rating of the bushing. The stud connectors shall be finished on both sides of the four-hole pad and shall be compatible for connection to aluminum four-hole pads. 9.4 WINDINGS Windings shall be copper. All joints shall be welded or brazed, except compression type may be used for terminal connections. Bolted connections may be used at bushing and terminal boards, provided suitable locking devices are used. 9.5 HIGH-VOLTAGE TAPS This transformer shall be provided with an EEI-NEMA rated deenergized tap changer having two 2% percent steps above and two 2% percent steps below nominal primary voltage 115 kV. An externally operated manual tap changer handle, accessible from ground level, shall be furnished with provisions for padlocking. 9.6 LOAD TAP CHANGING (LTC) The transformer will have automatic load tap changer equipment which will operate under load to provide sixteen 5/8 percent steps above and sixteen 5/8 percent steps below the rated voltage tap. High voltage bushings shall be 115 kV class, 550kV BIL, pocket mounted, in segment 3. Overall height from base ofthe transformer to the top ofthe bushings shall not exceed fifteen (15) feet. The secondary neutral, ifrequired, shall bebrought outthrough one 13.8 kV class, 110 kV BIL, bushings, side mounted. An external core-ground test bushing shall beprovided, top mounted. Ifahigh side WYE connection is quoted, the high side neutral shall be left ungrounded and shall be brought outside ofthe transformer tank by means ofa pocket or side mounted bushing. Provisionfor mounting a fourth (4th) station class, metal oxide, surge arrester shall be included in the high sideWYE connection quotation. Ifa high side ungrounded wye connection is quoted, the manufacturer should suggest the BILrating ofthe neutral end ofthe ungrounded wye and the rating ofthe lighting arrester to be attached thereto. 9.3.1 Bushing Terminals All bushing terminal connectors will be furnished by the transformer Seller. The connectors will be standard 4-hole NEMAbronze stud connectors compatible with the maximum current rating ofthe bushing. The stud connectors shall be finished onboth sides ofthe four-hole pad and shall be compatible for connection to aluminum four-hole pads. 9.4 WINDINGS Windings shall be copper. Alljoints shall be welded orbrazed, except compressiontype may beused for terminal connections. Bolted connections maybeused at bushing and terminal boards, provided suitable locking devices are used. 9.5 HIGH-VOLTAGE TAPS This transformer shall be provided with an EEI-NEMArated deenergized tap changer having two 2% percent steps above and two 2% percent steps below nominal primaryvoltage 115 kV. Anexternally operated manual tap changerhandle, accessible from ground level, shall be furnished with provisions for padlocking. 9.6 LOAD TAP CHANGING (LTC) The transformer will have automatic load tap changer equipment which will operate under load to provide sixteen 5/8 percent steps above and sixteen 5/8 percent steps below the rated voltage tap.

- 11 -When the load tap changer equipment is on a position at or above rated secondary voltage, the transformer

will be capable of supplying rated kVA. When the load tap changer equipment is on a position below rated secondary voltage, the transformer will be capable of supplying rated current. The load tap changer will be located in a compartment mounted on the transformer, filled with oil separate from the oil in the main tank, with the following accessories: Hinged door or cover for maintenance access with suitable gaskets. Fill and drain valves. Magnetic liquid level gauge with alarm contacts. Manhole for inspection without lowering the oil level. Mechanical pressure relief device with automatic reset and reseal, alarm contacts, and direct mechanical indicator. Connection for vacuum line 3" NPT. The tap changer control equipment shall include: Switch for selecting local or remote control. Operation control switch with automatic and off manual positions. Position indicator reading 16L-N-16R, externally visible. Light and convenience outlet in control cabinet, 120 volt, 20 ampere. Power supply switch. Limit switches and mechanical stops to prevent travel beyond extreme tap positions. Voltage testing terminals. Space heater with thermostat set at 20°C. The power required to drive the mechanism will be obtained from an external Purchaser furnished control power transformer supplying 240/120 volts. Tap changer controls shall be wired and labeled such that "Raise" and "Lower" indications refer to the 13.8 kV secondary voltage of the transformer. Whenthe load tap changer equipment is on a position at or above rated secondary voltage, the transformer will be capable ofsupplyingrated kVA. Whenthe load tap changer equipment is on a positionbelow rated secondary voltage, the transformer will be capable ofsupplying rated current. The load tap changer will be located in a compartment mounted on the transformer, filled with oil separate from the oil in the maintank, with the following accessories: Hinged door orcoverfor maintenance access with suitable gaskets. Fill and drain valves. Magnetic liquid level gauge with alarm contacts. Manhole for inspection without lowering the oil level. Mechanical pressurereliefdevice with automaticreset and reseal, alarm contacts, and direct mechanical indicator. Connectionfor vacuumline 3" NPT. Thetap changer control equipment shall include: Switch for selecting local orremote control. Operation control switch with automatic and offmanual positions. Position indicator reading 16L-N-16R, externally visible. Light and convenience outlet in control cabinet, 120 volt, 20 ampere. Power supply switch. Limit switches and mechanical stops to prevent travel beyond extremetap positions. Voltage testing terminals. Spaceheater with thermostat set at 20°C. Thepowerrequired to drive the mechanism will be obtained from an external Purchaserfurnished control powertransformer supplying 240/120 volts. Tap changer controls shall be wired and labeled such that "Raise" and "Lower" indications refer to the 13.8 kV secondary voltage ofthe transformer.

- 12-9.7 COOLING EQUIPMENT 9.7.1 Radiators

If the transformer is designed with removable radiators, the radiator connections shall be made with bolted flange-type, oil tight fittings. Valves shall be provided so that individual radiators, or radiator bank if a common header is used, may be removed without lowering the oil level in the main transformer tank. Valves shall also be provided to permit removal of oil pump units and associated motors without loss of oil, when applicable. These valves shall be equipped with indicators to show clearly their position, open or closed, and shall be arranged so that they can be bolted in either the open or closed position and must be of a type which do not leak around their operating stem. Each radiator, or radiator bank, if a common header is used, shall be provided with a drain plug at its lowest point and an air inlet plug at the top. Plugs shall have a square head and standard tapered pipe threads. The fittings on the cooler assemblies will also be used to flush each entire assembly including the piping, pump, and where possible, the pump motor. The bottom fitting shall be at the lowest point of the assembly, whether this point is in a pipe, the pump, or the pump motor housing. Where the pump motor is the lowest part of the assembly, it will not be necessary that the fitting be in it if the motor is not in the transformer oil or if the flow through the motor is so restricted as to prohibit proper flushing of the cooler assembly. In such cases, the fitting shall be in the lowest point of the assembly exclusive of the motor housing. 9.7.2 Fans

All fan motors shall be totally enclosed, nonventilated, with sealed, prelubricated ball bearings, and rated for all-weather outdoor operation. The motors furnished shall be designed, manufactured and routine tested and shall operate in accordance with the latest applicable NEMA, IEEE, and ANSI standards. In addition, the motors shall comply with any applicable standards and tests that may be specified herein. All motors shall operate successfully at their specified rating at the ambient temperature and altitude specified in the service conditions. 9.7 COOLING EQUIPMENT 9.7.1 Radiators Ifthetransformer is designed withremovableradiators, theradiator connections shall be made with bolted flange-type, oil tight fittings. Valves shall beprovided so that individual radiators, orradiator bank ifa commonheader is used, mayberemoved without lowering the oil level in the main transformer tank. Valves shall also beprovided to permitremoval ofoil pump units and associated motors without loss ofoil, when applicable. These valves shall be equipped with indicators to show clearly theirposition, open or closed, and shall be arranged so that they canbebolted in either the open or closedposition and mustbe ofa type which do not leak around their operating stem. Each radiator, orradiatorbank, ifa commonheader is used, shall beprovided with a drain plug at its lowestpoint and an air inletplug atthe top. Plugs shall have a squarehead and standard taperedpipe threads. The fittings onthe cooler assemblies will also beused to flush each entire assembly including the piping, pump, and where possible, thepump motor. Thebottomfitting shall be at the lowest point of the assembly, whetherthis point is in a pipe, the pump, orthe pump motorhousing. Where thepump motor is the lowestpart ofthe assembly, it will notbenecessarythat the fitting be in it ifthe motor is not in the transformer oil or iftheflow through themotor is so restricted as to prohibitproperflushing ofthe cooler assembly. In such cases, the fitting shall beinthe lowestpoint ofthe assembly exclusive ofthe motorhousing. 9.7.2 Fans All fan motors shall be totally enclosed, nonventilated, with sealed, prelubricatedball bearings, and rated for all-weather outdoor operation. The motors furnished shall be designed, manufactured and routine tested and shall operate in accordance withthe latest applicable NEMA, IEEE, and ANSI standards. In addition, the motors shall complywith any applicable standards and tests that maybe specifiedherein. All motors shall operate successfully attheir specifiedrating at the ambient temperature and altitude specified in the service conditions.

- 13

-The continuous horsepower nameplate rating shall be greater than or equal to the maximum brake

horsepower required by the driven equipment when the driven equipment is operating at the maximum load conditions. Service factor rating shall not be used to meet this requirement. Insulation for all motors shall equal or exceed the requirements for Class B insulation, unless otherwise approved by the buyer. The maximum hottest-spot temperature of the windings shall not exceed 135°C with operating under the conditions of nameplate rating output, maximum ambient temperature and elevation specified herein. Integral horsepower motors shall have a NEMA Design B torque characteristic unless otherwise required by the driven equipment. 9.7.3 Oil Preservation System

The oil preservation system shall be a nitrogen blanket type with the combustible gas sampling equipment. 9.7.4 Insulating Oil

The insulating oil shall be a pure mineral oil obtained from petroleum. It shall not contain moisture, acids, alkali, free sulphur, or any other substances which will affect its insulating and cooling qualities and shall be of a quality which will not affect adversely nor be adversely affected by the insulation, the insulation varnish, or other parts of the equipment with which it will be in contact. Oil inhibitors shall be used. The oil shall have the following characteristics: 1. Viscosity: Not less than 12 seconds, nor (ASTM D-88) greater than 66 seconds Saybolt

at 40°C. 2. Flash Point: Not less than 145°C. (ASTM D-92) 3. Moisture Content: Not higher than 20 ppm. (ASTM D-1533) 4. Pour Point: Not higher than minus 45°C. 5. Neutralization Number: Not more than 0.03 milligram of (ASTM D-974) potassium hydroxide required to The continuous horsepower nameplate rating shall be greater than or equal to the maximum brake horsepower required by the driven equipment when the driven equipment is operating at the maximum load conditions. Service factor rating shall not be used to meet this requirement. Insulation for all motors shall equal or exceed the requirements for Class B insulation, unless otherwise approved bythe buyer. The maximumhottest-spot temperature ofthe windings shall not exceed 135°C with operating under the conditions ofnameplate rating output, maximum ambient temperature and elevation specified herein. Integral horsepower motors shall have a NEMA Design B torque characteristic unless otherwise required by the driven equipment. 9.7.3 Oil Preservation System The oil preservation system shall be a nitrogenblankettype with the combustible gas sampling equipment. 9.7.4 Insulating Oil The insulating oil shall be a pure mineral oil obtained from petroleum. It shall not contain moisture, acids, alkali, free sulphur, or any other substances which will affect its insulating and cooling qualities and shall be ofa quality which will not affect adverselynorbe adversely affected by the insulation, the insulation varnish, or otherparts ofthe equipment with which it will be in contact. Oil inhibitors shall beused. The oil shall have the following characteristics: 1. Viscosity: Not less than 12 seconds, nor (ASTM D-88) greater than 66 seconds Saybolt at 40°C. 2. Flash Point: Not less than 145°C. (ASTM D-92) 3. Moisture Content: Nothigher than 20 ppm. (ASTM D-1533) 4. PourPoint: Nothigher than minus 45°C. 5. Neutralization Number: (ASTM D-974) Not more than 0.03 milligram of potassiumhydroxide required to

- 14

-neutralize 1 gram of oil. 6. Mineral Acids:The oil shall show absence of chlorides (ASTM D-878) and sulphates. 7. Free and Corrosive 8. Sulphur: The oil shall not contain free sulphur (ASTM D-1275) or corrosive sulphur compounds. 9. Interfacial Tension: 40 Dynes/CM at 25°C (ASTM-97) 10. Dielectric Strength: Not less than 30 W. (ASTM B-877) 11. Color: Very light, 0.5 maximum. (ASTM D-1500) 12. Power Factor, 60 Hertz: 0.05 percent maximum at 25°C. (ASTM B-924) 13. Specific Gravity: 0.91 maximum at 15°C. (ASTM D-1298) 14. Oxidation Stability: 0.15 percent maximum sludge after (ASTM D-2440) 72 hours. 0.5 mg of KOH maximum total acid after 72 hours.

(ASTM D-611) 15. Aniline Point: Not higher than 75°C.

16. Steam Emulsion: Not higher than 30 seconds. (ASTM 1935) 17. Inhibitor: 2, 6 Ditertiary - Butyl - Paracresol - 0.2% by weight The Seller shall certify the oil delivered with this equipment, and any oil used in production or testing of this equipment, is classified as "non-PCB" (polychlorinated biphenyl) with contamination of less than 50 ppm (parts per million) per EPA publication 40 DFR Part 761, dated May 31, 1979. The Purchaser will not accept delivery of the equipment until such certification is received. Demurrage incurred due to lack of this certification will be paid by the Seller. The Seller is also responsible to provide the same certification as listed above for any oil supplied by subcontractor. neutralize 1 gram ofoil. 6. Mineral Acids:The oil shall show absence ofchlorides (ASTM D-878) and sulphates. 7. Free and Corrosive 8. Sulphur: (ASTM D-1275) The oil shall not containfree sulphur or corrosive sulphur compounds. 9. Interfacial Tension: 40 Dynes/CM at 25°C (ASTM-97) 10. Dielectric Strength: Not less than 30 kV. (ASTM B-877) 11. Color: Very light, 0.5 maximum. (ASTM D-1500) 12. PowerFactor, 60 Hertz: 0.05 percent maximum at 25°C. (ASTM B-924) 13. Specific Gravity: 0.91 maximum at 15°C. (ASTM D-1298) 14. Oxidation Stability: 0.15 percent maximum sludge after (ASTM D-2440) 72 hours. 0.5 mg ofKOH maximum total acid after 72 hours. 15. Aniline Point: Nothigher than75°C. (ASTM D-611) 16. SteamEmulsion: Not higher than 30 seconds. (ASTM 1935) 17. Inhibitor: 2,6Ditertiary

- Butyl

- Paracresol

- 0.2% by weight The Seller shall certifythe oil delivered with this equipment, and any oil used in production ortesting ofthis equipment, is classified as "non-PCB" (polychlorinatedbiphenyl) with contamination ofless than 50 ppm (parts per million) perEPApublication40 DFR Part 761, dated May 31, 1979. The Purchaser will not accept delivery ofthe equipmentuntil such certification is received. Demurrage incurred due to lack ofthis certification will be paidbythe Seller. The Seller is also responsible to provide the same certification as listed above for any oil suppliedby subcontractor.

- 15

-9.8 TANK AND ACCESSORIES

Tank shall be constructed to withstand filling with oil under full vacuum without permanent distortion. Tank shall be of the all-welded type construction. All gauges and indicators shall have polycarbonate lenses. The following moving, handling facilities, and accessories shall be provided: Lifting eyes for lifting cover only. Facilities for lifting core and coil assembly from tank. Transformer base designed for rolling or skidding parallel to either center line. Pulling eyes. Lifting lugs for lifting complete transformer. Jack bosses for raising complete transformer. Domed cover to shed water and to collect gas for the gas detecting relay. Mechanical pressure relief device with automatic reseal, alarm contacts, and direct mechanical indicator. Qualitrol model number 208-001-009 or equivalent. Two-inch globe valve for filter-press inlet. Two-inch globe valve for complete tank drain, filter-press outlet, and sampling device. Valves to permit draining and removal of radiators without draining oil from the main tank. Two manholes in cover, minimum, each with a minimum diameter of 18 inches. Dial-type liquid temperature indicator with two adjustable alarm contacts for Purchaser use which are accessible via a removable front cover. Relay shall be Qualitrol Corporation, Model 104-077-01 or equivalent. This relay shall be removable for field testing. Contact wiring shall be terminated in the control cabinet. Magnetic liquid level gauge with low-level alarm contacts. 9.8 TANK AND ACCESSORIES Tank shall be constructed to withstand filling with oil under full vacuum without permanent distortion. Tank shall be ofthe all-welded type construction. All gauges and indicators shall have polycarbonate lenses. The following moving, handling facilities, and accessories shall be provided: Lifting eyes for lifting cover only. Facilities for lifting core and coil assemblyfrom tank. Transformerbase designed for rolling or skidding parallel to either center line. Pulling eyes. Lifting lugs for lifting completetransformer. Jackbosses for raising completetransformer. Domed cover to shed water and to collect gas for the gas detecting relay. Mechanical pressurereliefdevice with automaticreseal, alarm contacts, and direct mechanical indicator. Qualitrol model number 208-001-009 or equivalent. Two-inch globe valve for filter-press inlet. Two-inch globe valve for completetank drain, filter-press outlet, and sampling device. Valves to permit draining and removal ofradiators without draining oil from the main tank. Two manholes incover, minimum, each with a minimum diameter of 18 inches. Dial-type liquid temperature indicator with two adjustable alarm contacts for Purchaseruse which are accessible via a removable front cover. Relay shall be Qualitrol Corporation, Model 104-077-01 or equivalent. This relay shall beremovable for field testing. Contact wiring shall beterminated in the control cabinet. Magnetic liquid level gauge with low-level alarm contacts.

- 16

-Thermal relay on the common windings, with four single-pole contacts available for Purchaser use.

Relays shall be removable for field testing with adjustable contacts accessible via a removable front cover. Relay shall be a Qualitrol Corporation, Model 104-01. Nameplate(s) shall be in accordance with ANSI-C57.12.30- 1971 and C57.12-1973. Nameplate C shall be used. One three-inch NPT female threaded opening in top of main tank located diametrically opposite the filter-press inlet. This is to be used for vacuum oil filling and is to be furnished with an extra-heavy capped nipple to close the opening. All gaskets in contact with oil bearing surfaces shall be nitrile butadine rubber. Exceptions must be approved in writing by Purchaser. Cork, in any form, is not acceptable as gasket material. Four 1/4-inch diameter by 3/4-inch mounting studs for an impact recorder welded to the sidewall of the transformer tank, accessible from ground level, with a vertical spacing of 9-5/8 inches and a horizontal spacing of 8-5/8 inches. Fault pressure relay, Qualitrol Type 900-009-01, with an auxiliary relay assembly for seal-in operation having an alarm and one trip contact, Qualitrol Type 909-004-01, 48 volt DC. The center lines of tank shall be permanently marked near the base on all four sides of the tank. One complete set of gaskets for each. different size of manhole, handhole, radiator, etc., shall be furnished unless reusable gaskets are furnished. 9.9 GROUNDING Copper-faced, two-hole NEMA ground pads shall be welded to opposite sides of the tank with lugs for 1/0 to 4/0 AWG copper. Seller shall furnish all connections from neutral bushing to ground pads at base of the tank. All ground leads shall be copper or aluminum bar of one piece construction. The Seller shall provide provisions to securely fasten all ground leads to the transformer and supporting structures. 9.10 LIGHTNING ARRESTERS Transformer shall have three (3) 115 kV station class metal oxide lighting arresters rated 90 kV suitable for use on a 115 kV effectively grounded system. 9.11 AUDIBLE SOUND LEVEL Thermal relay onthe common windings, with four single-pole contacts available for Purchaseruse. Relays shall beremovable for field testing with adjustable contacts accessible via aremovable front cover. Relay shall be a Qualitrol Corporation, Model 104-01. Nameplate(s) shall be in accordance with ANSI-C57.12.30- 1971 and C57.12-1973. Nameplate C shall be used. One three-inch NPT female threaded opening in top ofmain tanle located diametrically oppositethe filter-press inlet. This is to be used for vacuum oil filling and is to befurnished with an extra-heavy capped nipple to close the opening. All gaskets in contact with oil bearing surfaces shall benitrile butadine rubber. Exceptions must be approved in writing byPurchaser. Cork, in any form, is not acceptable as gasket material. Four 1/4-inch diameterby 3/4-inch mounting studs for an impactrecorder welded to the sidewall ofthe transformer tank, accessible from ground level, with a vertical spacing of9-5/8 inches and a horizontal spacing of8-5/8 inches. Faultpressure relay, Qualitrol Type 900-009-01, with an auxiliaryrelay assemblyfor seal-in operation having an alarm and one trip contact, Qualitrol Type 909-004-01, 48 volt DC. The center lines oftank shall bepermanently marked near the base on all four sides ofthe tank. One complete set ofgaskets for eachdifferent size ofmanhole, handhole, radiator, etc., shall be furnished unless reusable gaskets are furnished. 9.9 GROUNDING Copper-faced, two-hole NEMA ground pads shall be welded to opposite sides ofthe tank with lugs for 110 to 4/0 AWG copper. Seller shall furnish all connections from neutral bushing to ground pads at base ofthe tank. All ground leads shall be copper or aluminum bar ofone piece construction. The Seller shall provide provisions to securely fasten all ground leads to the transformer and supporting structures. 9.10 LIGHTNING ARRESTERS Transformer shall have three (3) 115 kV station class metal oxide lighting arresters rated 90 kV suitable for use on a 115 kV effectively grounded system. 9.11 AUDIBLE SOUND LEVEL

- 17 -Transformer shall be designed and guaranteed to have an average sound level not exceeding the levels listed

in the latest revision of NEMA TR-1--1980. 9.12 CONTROL CABINET Control cabinet, weatherproof, dead-front, mounted so as to be free of vibration from the main transformertank, with all secondary and control wiring terminated on properly identified terminal blocks, GE Type EB25. 9.13 CONTROLS AND WIRING All electrical wiring between permanently mounted accessories and the control cabinet shall be enclosed in a rigid steel conduit securely fastened to the transformer tank in a manner to prevent mechanical damage or vibration. All electrical wiring between the control cabinet and the conduit, routed on and secured to the tank, up to close proximity points near each motor. All interconnecting raceway between the conduit and the motors shall be liquid-tight, flexible metal conduit with sunlight resistant jacket. All conduit joints and fittings shall be dust tight and watertight. Control, current transformer, auxiliary power and alarm circuit wiring shall be 600 volt, at least Number 12 AWG, stranded copper conductor with TA, SIS or other approved insulation. All wiring shall be capable of passing the IPCEA Flame Resisting Test, IPCEA S-61-402, Section 6,5. Hinge-type wiring shall be used for all connections to swinging panels. All connections to external circuits shall be brought to terminal blocks within the control cabinet. All terminal block points and associated wiring shall be grouped and separated as to low voltage power, low voltage instrumentation and control, and low-level signal.All terminal blocks for low voltage control and instrumentation shall be GE Type EB-25 or engineerapproved equal. Short circuiting type terminal blocks shall be provided for current transformer secondary circuits. All wiring shall be connected to terminal blocks and device studs with insulated, compression barrel, ring-type lugs. All terminal blocks for power shall be GE Type EB-26 or engineer approved equal. All terminal blocks shall have at least 20 percent spare positions for use by Purchaser. All blocks shall be positioned to allow unrestricted access to the terminal points and associated wiring. Sufficient cabinet space for all field cables shall be provided to avoid cable bunching or stacking between the terminal blocks and the cabinet cable entries. All auxiliary equipment controls shall be rated for operation on an integral 120-volt AC system. The AC rated equipment shall operate satisfactorily with a supply voltage regulation of * 10 percent of nominal. All annunciator and protective equipment controls shall be rated for operation from a purchaser supplied 48- Transformer shall be designed and guaranteed to have an average sound level not exceeding the levels listed in the latestrevision ofNEMA TR-I--1980. 9.12 CONTROLCABINET Control cabinet, weatherproof, dead-front, mounted so as to befree ofvibration from the main transformer tank, with all secondary and control wiring terminated onproperly identified terminal blocks, GEType EB25. 9.13 CONTROLS AND WIRING All electrical wiring betweenpermanently mounted accessories and the control cabinet shall be enclosed in arigid steel conduit securelyfastened to the transformer tank in a manner to prevent mechanical damage or vibration. All electrical wiring between the control cabinet and the conduit, routed on and secured to the tank, up to close proximitypoints near each motor. All interconnectingracewaybetween the conduit and the motors shall be liquid-tight, flexible metal conduit with sunlightresistantjacket. All conduitjoints and fittings shall bedust tight and watertight. Control, current transformer, auxiliary power and alarm circuit wiring shall be 600 volt, at least Number 12 AWG, stranded copper conductor with TA, SIS or other approved insulation. All wiring shall be capable of passing the IPCEA Flame Resisting Test, IPCEA S-61-402, Section 6,5. Hinge-type wiring shall be used for all connections to swinging panels. All connections to external circuits shall bebrought to terminal blocks within the control cabinet. All terminal blockpoints and associated wiring shall be grouped and separated as to low voltage power, low voltage instrumentation and control, and low-level signal. All terminal blocks for low voltage control and instrumentation shall be GE Type EB-25 orengineerapproved equal. Short circuiting type terminal blocks shall beprovided for current transformer secondary circuits. All wiring shall be connected to terminal blocks and device studs with insulated, compression barrel, ring-type lugs. All terminal blocks for power shall be GE Type EB-26 or engineer approved equal. All terminal blocks shall have at least 20 percent spare positions for use byPurchaser. All blocks shall be positioned to allow unrestricted access to the terminal points and associated wiring. Sufficient cabinet space for all field cables shall beprovided to avoid cablebunching or stacking betweenthe terminal blocks and the cabinet cable entries. All auxiliary equipment controls shall be rated for operation on an integral 120-voltAC system. The AC rated equipment shall operate satisfactorily with a supply voltage regulation of

## * 10 percent ofnominal. All annunciator and protective equipment controls shall berated for operation from a purchaser supplied 48-

- 18

-volt DC supply by Purchaser. The DC rated equipment shall operate satisfactorily with a supply voltage

variation between 42-56 volts. Thermostatically controlled space heaters, one 20 AMP, 120 VAC duplex convenience outlet, and internal lighting shall be provided in the control cabinet and shall be served from the integral 120-volt AC system. 9.14 THERMAL PROTECTION One (1) four-element thermal relay, calibrated to operate as a function of the magnitude of the hot spot temperature of the transformer winding, shall be included. The four-element thermal relay shall be removable for field testing and shall be adjustable with access through a removable front cover. The relay shall be a Qualitrol Corp., Model 104-104-1 or engineer approved equal.The relay shall have a tripping contact connected in parallel with the 63 contact to operate the 86/T triplockout relay.The relay shall have a tripping contact connected to operate two (2) General Electric 12HFA51B44F overtemperature auxiliary relays, which in turn will trip and lock out all feeder breakers when the transformer winding approaches the maximum safe operating temperature. These relays shall be mounted and supplied in the switchgear. One dial-type liquid temperature indicator with two (2) adjustable alarm contacts and removable front cover, Qualitrol Corp., Model 104-077-01 or Purchaser approved equivalent, shall be supplied. The indicator shall be removable for field testing. 9.15 AUXILIARY POWER SUPPLY The transformer shall be equipped to accept one-phase, 120/ 240 volt AC, 60 Hertz power. 9.16 CURRENT TRANSFORMERS Each 115 kV bushing shall be equipped with one (1) 600:5 amp, Class C400 multi-ratio current transformer. Each 13.8 kV bushing shall be equipped with one (1) 1200:5 amp, Class C400 multiratio current transformer. The secondary neutral bushing on the Hepner winding or the neutral bushing on the grounding bank transformer shall be equipped with one (1) 600:5 amp Class C400 multiratio current transformer. Leads of all current transformers shall be wired to properly identified GE Type EB-27 shorting-type terminal blocks mounted in the control cabinet. volt DC supplybyPurchaser. The DC rated equipment shall operate satisfactorily with a supply voltage variationbetween42-56 volts. Thermostatically controlled spaceheaters, one 20 AMP, 120 VAC duplex convenience outlet, and internal lighting shall beprovided in the control cabinet and shall be served from the integral 120-voltAC system. 9.14 THERMALPROTECTION One (1) four-element thermal relay, calibrated to operate as a function ofthe magnitude ofthe hot spot temperature ofthe transformer winding, shall be included. The four-element thermal relay shall be removable for field testing and shall be adjustable with access through aremovable front cover. Therelay shall be a Qualitrol Corp., Model 104-104-1 or engineer approved equal. Therelay shall have a tripping contact connected inparallel with the 63 contact to operate the 86/Ttriplockout relay. The relay shall have a tripping contact connected to operate two (2) General Electric 12HFA51B44Fovertemperature auxiliary relays, which in tumwill trip and lock out all feeder breakers when the transformer winding approaches the maximum safe operating temperature. Theserelays shall be mounted and supplied in the switchgear. One dial-type liquid temperature indicator with two (2) adjustable alarm contacts and removable front cover, Qualitrol Corp., Model 104-077-01 or Purchaser approved equivalent, shall be supplied. The indicator shall beremovable for field testing. 9.15 AUXILIARY POWER SUPPLY The transformer shall beequipped to accept one-phase, 120/240volt AC, 60 Hertz power. 9.16 CURRENT TRANSFORMERS Each 115 kV bushing shall be equipped with one (1) 600:5 amp, Class C400 multi-ratio current transformer. Each 13.8 kV bushing shall be equipped with one (1) 1200:5 amp, Class C400 multiratio current transformer. The secondaryneutral bushing on the Hepner winding or the neutral bushing on the grounding bank transformer shall be equipped with one (1) 600:5 amp Class C400 multiratio currenttransformer. Leads ofall currenttransformers shall be wired to properly identified GE Type EB-27 shorting-type terminal blocks mounted in the control cabinet.

- 19

-All current transformers shall comply with ANSI Standard C57.13-1966. All multi-ratio current

transformers shall have all the taps and ratios shown in Table 8 of C47.13-1966 for the corresponding current transformer rating. No exceptions to this will be allowed. All current transformers shall have a continuous thermal current rating factor of 2.0 per ANSI C57.13. 9.17 TESTS This transformer shall be tested in accordance with the standard test procedures as outlined in NEMA Publication TR 1-1980, ANSI Standard C57.12.90, PNM Quality Assurance Checklist including the following optional tests: Impulse tests (excluding front of wave). Insulation power factor tests per Doble standard test procedure

. All bushings shall be included in the power factor tests. The results shall be reported to the customer . At 10 kV, the transformer must have an acceptable power factor rating of 0.5 percent or less at 20°C. Switching surge tests. Temperature test per ANSI C57.12.90 a thermal equivalent may be substituted only if the following criterion is met: 1. Electrical duplicate. 2. Mechanical duplicate. 3. Test performed within the last two (2) years. Corona test--IEEE 262b (see PNM Quality Assurance Checklist). Excitation current tests at 100, 105, and 110 percent of rated voltage. A dissolved gas analysis shall be performed on the oil before and immediately after testing. As a minimum, the impulse, switching surge, and corona tests will be witnessed by the Purchaser, at which time the PNM Quality Assurance Checklist will be filled out. Seller shall notify Purchaser, in writing, ten (10) working days prior to testing. 9.17.1 No Load Losses

One test with the test voltage at one hundred and five percent of rated voltage and the deenergized tap one step (2-1/2 percent) above nominal 115 kV. All current transformers shall comply with ANSI Standard C57.13-1966. All multi-ratio current transformers shall have all the taps and ratios shown in Table 8 ofC47.13-1966 for the corresponding current transformer rating. No exceptions to this will be allowed. All current transformers shall have a continuous thermal currentrating factor of2.0 perANSI C57.13. 9.17 TESTS This transformer shall be tested in accordance with the standard test procedures as outlined in NEMA PublicationTR 1-1980, ANSI Standard C57.12.90, PNM QualityAssurance Checklist including the following optional tests: Impulse tests (excluding front ofwave). Insulation power factor tests per Doble standard test procedure. All bushings shall be included in the powerfactor tests. The results shall be reported to the customer. At 10 kV, the transformer musthave an acceptable powerfactor rating of0.5 percent orless at 20°e. Switching surge tests. Temperature test perANSI C57.12.90 a thermal equivalent maybe substituted only ifthe following criterion is met: 1. Electrical duplicate. 2. Mechanical duplicate. 3. Testperformed within the last two (2) years. Coronatest--IEEE 262b (see PNM QualityAssurance Checklist). Excitation current tests at 100, 105, and 110 percent ofrated voltage. A dissolved gas analysis shall be performed onthe oil before and immediately aftertesting. As a minimum, the impulse, switching surge, and coronatests will be witnessed bythe Purchaser, at which time the PNM Quality Assurance Checklist will be filled out. Seller shall notify Purchaser, in writing, ten (10) working days priorto testing. 9.17.1 No Load Losses One test with the test voltage at onehundred and five percent ofrated voltage and the deenergized tap one step (2-112 percent) above nominal 115 kV.

- 20-One test with the test voltage at one hundred two and one half percent of rated voltage and the

deenergized tap in the neutral position. One test with the test voltage of one hundred percent of rated voltage and the deenergized tap in the neutral position. Six copies of the test results shall be submitted to Purchaser as soon as the data has been tabulated. 9.17.2 Total Losses

One test at one hundred two and one-half percent of rated voltage with the deenergized tap in the neutral position and the low voltage LTC four steps (2 1/2 percent) above the nominal 13.8 kV position for loadings at 80 and 100 percent of 12.5 MVA. 9.18 LOSS EVALUATION The Bidder shall specify "no load", "auxiliary", and "total' losses in his proposal and shall furnish data upon testing the transformer, in accordance with ANSI-C57.12.90. Auxiliary losses will be evaluated at load loss rate. All load losses shall be corrected to a reference temperature of 55°C plus 20°C. No other corrections are acceptable. Certified loss test data shall be supplied to the Purchaser prior to shipment of the transformer. The certified test report shall follow the format shown in the Appendix of C57.12.00 (Special Forms) for the MVA rating specified in Section 9.18.2. 9.18.1 No Load Losses

The no load losses will be evaluated with the test voltage at one hundred two and one-half (102 1/2) percent voltage, the deenergized tap in the neutral position and the LTC in the neutral position. 9.18.2 No Load Losses in Grounding Transformer

If a separate grounding transformer is quoted the no load losses of this transformer will be evaluated with the test voltage at one hundred two and one-half (102-1/2 @) percent of nominal (13.8) kV voltage. The no load losses will be added to the no load losses of the main power transformer and evaluated at the rate indicated in Section 9.18.3. Load losses due to unbalances in the system will not be evaluated. 9.18.3 Total Losses One test with the test voltage at onehundred two and one halfpercent ofrated voltage and the deenergized tap in the neutral position. One test with the test voltage ofonehundred percent ofrated voltage and the deenergized tap in the neutral position. Six copies ofthe test results shall be submitted to Purchaser as soon as the datahas beentabulated. 9.17.2 Total Losses One test at one hundred two and one-halfpercent ofrated voltage with the deenergized tap in the neutral position and the low voltage LTC four steps (2 

### 112 percent) above the nominal 13.8 kV position for loadings at 80 and 100 percent of 12.5 MVA. 9.18 LOSS EVALUATION The Bidder shall specify "no load", "auxiliary", and "total' losses in his proposal and shall furnish data upon testing the transformer, in accordance with ANSI-C57.12.90. Auxiliary losses will beevaluated at load loss rate. All load losses shall be corrected to areference temperature of55°C plus 20°e. No other corrections are acceptable. Certified loss test data shall be supplied to the Purchaserprior to shipment ofthe transformer. The certified test report shall follow the format shown in the Appendix ofC57.12.00 (Special Forms) for the MVA rating specified in Section 9.18.2. 9.18.1 No Load Losses Theno load losses will be evaluated with the test voltage at onehundred two and one-half(102 112) percent voltage, the deenergized tap in the neutral position and the LTC in the neutral position. 9.18.2 No Load Losses in Grounding Transformer 

### Ifa separate grounding transformer is quoted the no load losses ofthis transformer will be evaluated with the test voltage at one hundred two and one-half(102-1I2@) percent ofnominal (13.8) kV voltage. The no load losses will be added to the no load losses ofthe mainpowertransformer and evaluated at the rate indicated in Section 9.18.3. Load losses due to unbalances in the system will not be evaluated. 9.18.3 Total Losses

- 21

-Total losses will be evaluated at 10 MVA assuming one hundred two and one-half percent of rated

voltage is applied to the HV winding, with the deenergized tap in the neutral position and the low voltage LTC four steps (2-1/2 percent) above the neutral position. The no load, auxiliary and total losses will be evaluated using the system cost rates below: No-load loss rate = $4,844 $/kW Load loss and auxiliary rate = $1,594 $/kW The total evaluated cost (TEC) will be derived from the following: T@C = (installed cost x 1.3185) + ($4,844 x no-load loss) + ($1,594 x load loss) + ($1,594 x auxiliary loss) In the event actual losses exceed the losses guaranteed, as determined by tests performed in accordance with the applicable provisions of ANSI Standard Test Code C57.12.90, Section 4, "Transformers, Regulators and Reactors," the Purchaser shall have the right to either reject the equipment or to accept the equipment under certain conditions. These are provided (1) that the Seller shall pay the Purchaser an amount to compensate for the excess losses, and (2) that the temperature rise performance shall not exceed, as confirmed by actual test, that proposed and guaranteed in the proposal. The amount due the Purchaser shall be calculated as follows: No Load Losses-Actual: NLA No Load Losses-Guaranteed: NLG Load Losses-Actual: LA Load Losses-Guaranteed: LG Auxiliary Losses-Actual: ALA Auxiliary Losses-Guaranteed: ALG Price Reduction = (NLA - NLG) ($4,844/kW) + (LA - LG) ($1,594/kW) + (ALA - ALG) ($1,594/kW) For actual losses exceeding the guaranteed losses by more than ten percent (10%), PNM reserves the right to increase the price reduction as follows for each type of loss: Total losses will beevaluated at 10 MVA assuming one hundred two and one-halfpercent ofrated voltage is applied to the HV winding, with the deenergized tap in the neutral position and the low voltage LTC four steps (2-1/2 percent) above the neutral position. Theno load, auxiliary and total losses will be evaluated using the system cost rates below: No-load loss rate

## =$4,844 $lkW Load loss and auxiliary rate

## =$1,594 $lkW Thetotal evaluated cost (TEC) will be derived from the following: T@C

## = (installed costx 1.3185) 

### + ($4,844 x no-load loss) 

### + ($1,594 x load loss) 

### + ($1,594 x auxiliary loss) Inthe event actual losses exceed the losses guaranteed, as determined bytests performed in accordance with the applicable provisions ofANSI Standard Test Code C57.12.90, Section4, "Transformers, Regulators and Reactors," the Purchaser shall have the right to eitherreject the equipment or to accept the equipmentunder certain conditions. These are provided (1) that the Seller shall paythe Purchaser an amount to compensatefor the excess losses, and (2) thatthe temperature rise performance shall not exceed, as confirmedby actual test, that proposed and guaranteed in the proposal. The amount due the Purchaser shall be calculated as follows: No Load Losses-Actual: NLA No Load Losses-Guaranteed: NLG LoadLosses-Actual: LA LoadLosses-Guaranteed: LG AuxiliaryLosses-Actual: ALA Auxiliary Losses-Guaranteed: ALG PriceReduction

## =(NLA

- NLG) ($4,844lkW) 

### + (LA

- LG) ($1,594lkW) 

### + (ALA

- ALG) ($1,594lkW) For actual losses exceeding the guaranteed losses bymore than ten percent (10%), PNMreserves the right to increase the pricereduction as follows for each type ofloss:

- 22-Price Reduction = 2 [(NLA - NLG) ($4,844/kW) + (LA - LG) ($1,594/kW) + (ALA - ALG) ($@,594/kW)] No credit will be allowed to the Seller for loss performance less than that guaranteed. The foregoing shall not be construed in any way to limit or negate any other standard guarantee or portion thereof which may provide a more comprehensive guarantee than those required by this specification. 10.0 SWITCHGEAR The switchgear shall be outdoor metal-clad, of the common sheltered-aisle type, arranged for direct connection to the power transformer. The metal-clad switchgear will be thoroughly weatherproofed and dust proofed and will include the following: Interior six-foot strip fluorescent lighting and utility outlet with fuses. The lights shall be controlled by dual switches, located four (4) feet above the floor within one (1) foot of each door. The base shall be so designed and constructed to prevent rodents and reptiles from entering the enclosed space between the switchgear assemble and its foundation. PNM interprets ANSI C37.20-6.2.2 as: "No openings between cubicles." All ventilation shall be to the outside, not in false work or other cubicles. All switchgear bus shall be fully insulated. One set of three (3) 12 kV metal oxide station-type lightning arresters connected between the main bus and a common ground bar. They are to be mounted so that there is at least 18 inches clearance below the lightning arresters for cable installations. Lightning arresters manufactured by General Electric, Westinghouse, or Ohio Brass are acceptable. 10.1 GROUNDING Each cubicle shall be provided with one (1) copper ground bar for the grounding of instrumentation, as required. This ground bar shall be continuous with provisions outside switchgear for connection to the station grounding system. Main ground bus shall be continuous throughout switchgear assembly. Ground bus shall have two (2) external NEMA 2-hole pads, located at opposite ends of switchgear assembly. Price Reduction

## =2 [(NLA

- NLG) ($4,844lkW) 

### + (LA

- LG) ($1,594lkW) 

### + (ALA

- ALG) ($@,594lkW)] No credit will be allowed to the Sellerfor loss performance less than that guaranteed. Theforegoing shall notbe construed in any wayto limit ornegate any other standard guarantee or portionthereofwhich mayprovide a more comprehensive guarantee than those required bythis specification. 10.0 SWITCHGEAR The switchgear shall be outdoor metal-clad, ofthe common sheltered-aisle type, arranged for direct connection to the powertransformer. The metal-clad switchgear will bethoroughly weatherproofed and dust proofed and will include the following: Interior six-foot strip fluorescent lighting and utility outlet with fuses. The lights shall be controlledby dual switches, located four (4) feet above the floor within one (1) foot ofeach door. Thebase shall be so designed and constructed to preventrodents and reptiles from entering the enclosed space betweenthe switchgear assemble and its foundation. PNM interprets ANSI C37.20-6.2.2 as: "No openings between cubicles." All ventilation shall beto the outside, not infalse work or other cubicles. All switchgearbus shall befully insulated. One set ofthree (3) 12 kV metal oxide station-type lightning arresters connected between the mainbus and a common ground bar. They are to be mounted so that there is at least 18 inches clearancebelow the lightning arresters for cable installations. Lightning arresters manufactured by General Electric, Westinghouse, or Ohio Brass are acceptable. 10.1 GROUNDING Each cubicle shall beprovided with one (l) copper groundbarfor the grounding ofinstrumentation, as required. This ground bar shall be continuous with provisions outside switchgear for connection to the station grounding system. Main ground bus shall be continuous throughout switchgear assembly. Ground bus shall have two (2) external NEMA 2-holepads, located at opposite ends ofswitchgear assembly.

- 23

-10.2 EQUIPMENT CONFIGURATION

Hinged, weatherproof (gasketed on all four sides) with a three (3) point latch (one that requires no tools to operate) all exterior access doors with provisions for padlocking and shall be automatically held open, when opened 90", until released. Necessary screened and filtered openings for ventilation so designed and constructed to prevent insects, rodents, and reptiles from entering. Switchgear Seller shall not stack breaker cubicles, they will be arranged side by side. The common aisle shall be a minimum of six (6) feet in width, metal enclosed. 10.3 THROAT Transformer throat will be supplied by the switchgear Seller. In accordance with PNM Drawing DBD-949 in Appendix 4. Throat shall be manufactured to mate with throat mount supplied by transformer Seller. 10.4 CONTROLS AND WIRING Control, current transformer, auxiliary power and alarm circuit wiring shall be 600 volt , at least number 12 AWG, stranded copper conductor with TA, SIS or other approved insulation. All wiring shall be capable of passing the IPCEA Flame Resisting Test, IPCEA S-61-402, Section 6.5. Hinge-type wiring shall be used for all connections to swinging panels. All terminal block points and associated wiring shall be grouped and separated as to low voltage power, low voltage instrumentation and control, and low-level signal. All terminal blocks for low voltage control and instrumentation shall be GE Type EB-25 or engineer approved equal. Short circuiting type terminal blocks shall be provided for current transformer secondary circuits. All current transformer ratios shall be terminated on one shorting block per phase. Common three phase terminal blocks will not be allowed. CT wire on the load side of the shorting block shall be of sufficient length to reach any point on the block to allow ratio change. All wiring shall be connected to terminal blocks and device studs with insulated, compression barrel, ring-type lugs. All terminal blocks for power shall be GE Type EB-26 or engineer approved equal. All terminal blocks shall have at least 20 percent spare positions for use by Purchaser. All blocks shall be positioned to allow unrestricted access to the terminal points and associated wiring. Sufficient space for all field cables shall be provided to avoid cable bunching or stacking between the terminal blocks and the cabinet cable entries. 10.2 EQUIPMENT CONFIGURATION Hinged, weatherproof(gasketed on all four sides) with a three (3) point latch (one that requires no tools to operate) all exterior access doors with provisions for padlocking and shall be automaticallyheld open, when opened 90", until released. Necessary screened and filtered openings for ventilation so designed and constructed to prevent insects, rodents, and reptiles from entering. Switchgear Seller shall not stack breaker cubicles, they will be arranged side by side. The common aisle shall be a minimum ofsix (6) feet in width, metal enclosed. 10.3 THROAT Transformer throat will be supplied bythe switchgear Seller. Inaccordance with PNMDrawing DBD-949 in Appendix 4. Throat shall bemanufactured to mate with throat mount supplied bytransformer Seller. 10.4 CONTROLS AND WIRING Control, current transformer, auxiliarypower and alarm circuit wiring shall be 600 volt, at least number 12 AWG, stranded copper conductor with TA, SIS or other approved insulation. All wiring shall be capable of passing the IPCEA FlameResisting Test, IPCEA S-61-402, Section 6.5. Hinge-type wiring shall beused for all connections to swinging panels. All terminal blockpoints and associated wiring shall be grouped and separated as to low voltage power, low voltage instrumentation and control, and low-level signal. All terminal blocks for low voltage control and instrumentation shall be GE Type EB-25 or engineer approved equal. Short circuiting type terminal blocks shall be provided for current transformer secondary circuits. All current transformerratios shall be terminated on one shorting blockperphase. Commonthree phase terminal blocks will notbe allowed. CT wire onthe load side ofthe shorting block shall beof sufficient length to reach any point onthe block to allow ratio change. All wiring shall be connected to terminal blocks and device studs with insulated, compressionbarrel, ring-type lugs. All terminal blocks for power shall be GE Type EB-26 or engineer approved equal. All terminal blocks shall have at least 20 percent spare positions for use by Purchaser. All blocks shall be positioned to allow unrestricted access to the terminal points and associated wiring. Sufficient space for all field cables shall be provided to avoid cable bunching or stacking between the terminal blocks and the cabinet cable entries.

- 24-All auxiliary equipment controls shall be rated for operation on an integral 120-volt AC system. The AC

rated equipment shall operate satisfactorily with a supply voltage regulation of * 10 percent of nominal. All annunciator and protective equipment controls shall be rated for operation from a purchaser supplied 48- volt DC supply. All DC rated equipment shall operate satisfactorily with a supply voltage variation between 42-56 volts. All external control cables and low voltage power supply cables (AC and DC) shall terminate, by the Seller, in a weatherproof cabinet mounted on the external end of Unit 1. The cabinet will be referred to as the TBC (Terminal Board Cabinet). The TBC shall be designed and equipped with all necessary terminal blocks, including spares for control circuits and power blocks for AC and DC circuits. The TBC shall be so designed and constructed to prevent moisture condensation. The TBC shall have either full front opening, single or double door construction with a three (3) point latch with provisions for locking with one (1) padlock. Minimum TBC size shall be two (2) feet (2') wide by three feet (3') high by twelve inches (12") deep. Purchaser's conduit will enter bottom of TBC. TBC shall be centered four feet (4') above switchgear base. Wiring shall be provided for purchaser supplied battery (48 V, 85 AH) and two (2) battery chargers (6 amp). Adjustable mounting provisions for the chargers shall be made at eye level on the wall of sheltered aisle opposite Cubicle 1. The DC source, fused at 70 amps, and the AC supply are to be wired to a terminal block located adjacent to the chargers. All fuse blocks for control and instrumentation will be of nonflammable ceramic or one-piece bakelite plastic rated at 600 volts. The holders will be open faced. Pull-block type enclosed holders will not be accepted. 10.5 TESTS Certified test reports that the equipment meets the following applicable standards shall be submitted: ANSI C37.09, test procedure for AC high voltage circuit breakers, Section 09-5, production test (tests and certification required) on each breaker furnished. ANSI C37.20c, switchgear assemblies including metal enclosed bus, Section 20-5.3, production tests (tests and certification required) on all switchgear furnished. ANSI C57.13, requirements for instruments transformers, Sections 13-4.11 and 13-5.11, routing accuracy tests (test and certification required) on each transformer. The Purchaser shall have the right to witness all tests on components, switchgear, and/or breakers. The Seller shall advise the Purchaser, in writing, ten (10) working days in advance of testing. The Purchaser reserves the option to waive witnessing testing. 10.6 CURRENT TRANSFORMERS All auxiliary equipment controls shall be rated for operation on an integral 120-volt AC system. The AC rated equipment shall operate satisfactorily with a supply voltage regulation of

## * 10 percent ofnominal. All annunciator and protective equipment controls shall be rated for operation from a purchaser supplied 48- volt DC supply. All DC rated equipment shall operate satisfactorily with a supply voltage variation between42-56 volts. All external control cables and low voltage power supply cables (AC and DC) shall terminate, bythe Seller, in a weatherproofcabinet mounted onthe external end ofUnit 1. The cabinet will bereferred to as the TBC (Terminal Board Cabinet). The TBC shall be designed and equipped with all necessary terminal blocks, including spares for control circuits and powerblocks for AC and DC circuits. The TBC shall be so designed and constructed to prevent moisture condensation. The TBC shall have eitherfull front opening, single or double door construction with a three (3) point latch with provisions for locking with one (1) padlock. Minimum TBC size shall betwo (2) feet (2') wide by three feet (3') high by twelve inches (12") deep. Purchaser's conduit will enter bottom ofTBC. TBC shall be centered four feet (4') above switchgear base. Wiring shall be providedfor purchaser supplied battery (48 V, 85 AH) and two (2) battery chargers (6 amp). Adjustable mounting provisions for the chargers shall be made at eye level onthe wall ofsheltered aisle opposite Cubicle 1. The DC source, fused at 70 amps, and the AC supply are to be wired to a terminal block located adjacent to the chargers. All fuse blocks for control and instrumentation will be ofnonflammable ceramic or one-piecebakelite plastic rated at 600 volts. The holders will be open faced. Pull-blocktype enclosed holders will not be accepted. 10.5 TESTS Certified test reports that the equipment meets the following applicable standards shall be submitted: ANSI C37.09, testprocedure for AC high voltage circuitbreakers, Section09-5, production test (tests and certificationrequired) on each breaker furnished. ANSI C37.20c, switchgear assemblies including metal enclosed bus, Section 20-5.3, production tests (tests and certificationrequired) on all switchgear furnished. ANSI C57.13, requirements for instruments transformers, Sections 13-4.11 and 13-5.11, routing accuracy tests (test and certificationrequired) on each transformer. The Purchaser shall have the right to witness all tests on components, switchgear, and/or breakers. The Seller shall advise the Purchaser, in writing, ten (10) working days in advance oftesting. The Purchaser reserves the option to waive witnessing testing. 10.6 CURRENT TRANSFORMERS

- 25

-All current transformers shall comply with ANSI Standard C57.13-1966. All multi-ratio current

transformers shall have all the taps and ratios shown in Table 8 of C57.13-1966 for the corresponding current transformer rating. No exceptions to this will be allowed. All current transformers shall have a continuous thermal current rating factor of 2.0 per ANSI C57.13. 10.7 ONE AUXILIARY COMPARTMENT, UNIT 1, Containing:

1 - Raceway (Minimum of 3" x 6" to provide a cable throughway from the rear to the front of cubicle 1. 1 1,200 amp bus entrance connection. Control power transformer, 8,400-120/240 volts, 15 kVA, with drawout type current-limiting fuse and mechanical or key inter locked breaker and fuse. One spare current-limiting fuse shall also be furnished. 1 120 volt AC supply for highside circuit switcher, fused at 30 amps. 1 - 48 volt DC supply for highside circuit switcher, fused at 50 amps. 1 - 48 volt DC supply to sudden pressure auxiliary relay, fused at 6 amps. 3- Potential transformer, rated 8,400-120 volts, with drawout type current-limiting fuses on the primary. Include also, three spare current-limiting fuses. 3- Multiratio current transformer, class C200, rated 1,200:5 amps, with all leads terminated to properly identified shorting-type terminal blocks wired into the transformer differential scheme. 3 - Multiratio current transformer, class C200, rated 1,200:5 amps, with all leads terminated to properly identified shorting type terminal blocks wired into the watt hour meter. 1 - Recording voltmeter--Bristol one pen model 1U2D530-24-Z7OBX, 90-140 volt range, flush mounted, 32-day chart #5259, 60 Hz, 115 volt, synchronous motor chart drive. 1 - General Electric watt-hour meter DSW-64, three-element, four-wire, three-phase, with a 15- minute demand attachment, type M50. Equipped with leads, terminals, and rotor with pinion for a contract device. 1 - Ammeter (0-1200 amp) and transfer switch. 1 - Voltmeter (0-15 k) volts and transfer switch. All current transformers shall comply with ANSI Standard C57.13-1966. All multi-ratio current transformers shall have all the taps and ratios shown in Table 8 ofC57.13-1966 for the corresponding current transformer rating. No exceptions to this will be allowed. All current transformers shall have a continuous thermal currentrating factor of2.0 per ANSI C57.13. 10.7 ONE AUXILIARY COMPARTMENT, UNIT 1, Containing: 1 - Raceway (Minimum of3" x 6" to provide a cable throughway from the rear to the front of cubicle 1. 1 - 1,200 amp bus entrance connection. 1 - Control powertransformer, 8,400-1201240 volts, 15 kVA, with drawout type current-limiting fuse and mechanical orkey inter locked breaker and fuse. One spare current-limiting fuse shall also be furnished. 1 - 120 volt AC supply for highside circuit switcher, fused at 30 amps. 1 - 48 volt DC supplyfor highside circuit switcher, fused at 50 amps. 1 - 48 volt DC supply to sudden pressure auxiliaryrelay, fused at 6 amps. 3 - Potential transformer, rated 8,400-120 volts, with drawouttype current-limiting fuses on the primary. Include also, three spare current-limiting fuses. 3 - Multiratio current transformer, class C200, rated 1,200:5 amps, with all leads terminated to properly identified shorting-type terminal blocks wired into the transformer differential scheme. 3 - Multiratio current transformer, class C200, rated 1,200:5 amps, with all leads terminated to properly identified shorting type terminal blocks wired into the watthour meter. 1 - Recording voltmeter--Bristol one pen modellU2D530-24-Z70BX, 90-140 volt range, flush mounted, 32-daychart#5259, 60 Hz, 115 volt, synchronous motor chart drive. 1 - General Electric watt-hour meter DSW-64, three-element, four-wire, three-phase, with a 15- minute demand attachment, type M50. Equipped with leads, terminals, and rotor with pinion for a contract device. 1 - Ammeter (0-1200 amp) and transfer switch. 1 - Voltmeter (0-15 k) volts and transfer switch.

- 26-1 - 240 volt, two pole, 30 amp breaker connected for customer use.

1 - Control switch mounted in the first cubicle and wired to properly identified terminal blocks for the high-side circuit switcher. General Electric type SB-1. 3- 87-Percentage differential, inverse time, single-phase relays with harmonic restraint. General Electric type 12STD15C5A or Westinghouse type HU, Style 290B346A09, wired to trip the 86 auxiliary trip lockout relay. 3- 51-Phase overcurrent relays, wired to trip the 86T auxiliary trip lockout relay. General Electric type 121AC53A803A or Westinghouse Style 264C901A05, Cat. CO-9H1101N are acceptable. Current circuit to be wired from transformer phase CT. 51N-Neutral overcurrent relay, wired to trip the 86T auxiliary trip relay. Current circuit to be wired from transformer neutral CT. GE type 121AC53A803A or Westinghouse style 264C901A05, Cat. No. CO-9H1101N are acceptable. 1 - 86T-Auxiliary trip lockout relay with hand reset for use with 87, 51,and 51N relays, used to trip and lockout the high side circuit switcher. 2- 49T/X1, X2- Auxiliary over-temperature trip relays. General Electric type 12HFA51B44F. 1 - Underfrequency load shedding relay package as shown in PNM drawing RM-17. 10.8 THREE FEEDER POWER CIRCUIT BREAKER COMPARTMENTS, UNITS 2, 4, AND 6 Each Containing: 1 - Air circuit breaker, 15 kV, 1,200 amps, 500 MVA interrupting capacity, three-phase drawout type, with 240 volt AC stored energy closing and 48 volt DC tripping. 3- Current transformer, class C200, 300/600:5 amps, with all leads terminated to properly identified shorting-type terminal blocks. 1 - Sangamo CCWF-CCVARF demand meter, Cat. #9059074-100, 5 amp, 120 volt, three-phase, four-wire, 2 1/2 element with 1/3 raised zero, 8-day synchronous motor chart drive, with chart scale kW/kVAR .75-0-1.5, and with chart speed attachment #99972. Set PK test blocks (current and voltage for plugging in test meter , wired to disconnect the CCWF-CCVARF meter only). 3- Thermal ammeter, 0-5 amp with instantaneous element. Sangamo-Lincoln No. 81852 with scale kit No. 418395-014 for 0-300, 0-600 amp ranges similar to type ADFH. 1 - 240 volt, two pole, 30 amp breaker connected for customer use. 1 Control switch mounted in the first cubicle and wired to properly identified terminal blocks for the high-side circuit switcher. General Electric type SB-l. 3 - 87-Percentage differential, inverse time, single-phaserelays with harmonic restraint. General Electric type 12STD15C5A or Westinghouse type HU, Style 290B346A09, wired to trip the 86 auxiliarytrip lockout relay. 3 - 51-Phase overcurrentrelays, wired to trip the 86T auxiliary trip lockoutrelay. General Electric type 12IAC53A803A or Westinghouse Style 264C901A05, Cat. CO-9HllOIN are acceptable. Current circuit to be wired from transformer phase CT. 1 - 51N-Neutral overcurrentrelay, wired to trip the 86T auxiliarytrip relay. Current circuit to be wired from transformer neutral CT. GE type 12IAC53A803A or Westinghouse style 264C901A05, Cat. No. CO-9Hl101N are acceptable. 1 - 86T-Auxiliarytrip lockout relay with hand reset for use with 87, 51,and 51Nrelays, used to trip and lockoutthe high side circuit switcher. 2 - 49TIXI, X2- Auxiliary over-temperaturetrip relays. General Electric type 12HFA51B44F. 1 - Underfrequency load shedding relay package as shown in PNM drawing RM-17. 10.8 THREEFEEDER POWER CIRCUIT BREAKER COMPARTMENTS, UNITS 2, 4, AND 6 Each Containing: 1 - Air circuit breaker, 15 kV, 1,200 amps, 500 MVA interrupting capacity, three-phase drawout type, with 240 volt AC stored energy closing and 48 volt DC tripping. 3 - Current transformer, class C200, 300/600:5 amps, with all leads terminated to properly identified shorting-type terminal blocks. 1 - Sangamo CCWF-CCVARF demand meter, Cat. #9059074-100, 5 amp, 120 volt, three-phase, four-wire, 2 112 element with 113 raised zero, 8-day synchronous motor chart drive, with chart scale kWIkVAR .75-0-1.5, and with chart speed attachment#99972. 1 - SetPK testblocks (current and voltage for plugging in test meter, wired to disconnect the CCWF-CCVARF meter only). 3 - Thermal ammeter, 0-5 amp with instantaneous element. Sangamo-Lincoln No. 81852 with scale kit No. 418395-014 for 0-300,0-600 amp ranges similar to type ADFH.

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-- Circuit breaker control switch with indicating lights. General Electric type SB-l, Style 16SB1B2X16, or Westinghouse type W-2, Style 505A713G01 are acceptable. Indication lights to be wired to monitor trip bus voltage: Green through a "b" contact, Red to monitor trip coil. 3- Four-hole NEMA pad for terminating three (3), 15 kV, single conductor, 750 MCM aluminum, shielded cables. 1 Ground bar for connecting one (1) neutral conductor. 3 - Phase overcurrent relays, General Electric type 121AC77B811A or Westinghouse Style 265C047A07, Cat. #CO-11H111IN are acceptable. 1 Neutral overcurrent relay, General Electric type 121AC53B 81 1A or Westinghouse Style 264C901A07, Cat. CO-9H1111N. 1 - Reclosing relay, General Electric type 12NLR21B2A or Westinghouse type RC, style 1867173, three adjustable reclosures with time setting of 0-15-60 seconds with toggle cutoff switch. 10.9 TWO FEEDER TIE COMPARTMENTS, UNITS 3 AND 5, Each Containing:

1 Manually operated loadbreak disconnect switch connecting the load side of two adjacent feeder breakers. The switch shall have a minimum loadbreak rating of 600 amperes. Provides for locking, if energized buses are accessible with the compartment open. A locking staple should extend through a slot in the compartment door so that padlock may be used. External tie-switches are not acceptable. 10.10 ONE SET OF METAL-CLAD SWITCHGEAR ACCESSORIES, Consisting Of, But Not Limited To:

Provisions for mounting equipment necessary for the removal of arc chutes during maintenance (if applicable). 1 - Breaker handling dolly. 1 - Set secondary couplers. 1 - Breaker maintenance closing device. 1-Arc chute lifter (if required). 1 - Set breaker tools. 1 - Circuitbreaker control switch with indicating lights. General Electric type SB-l, Style 16SBIB2XI6, or Westinghouse type W-2, Style 505A713GOI are acceptable. Indication lights to be wired to monitor trip bus voltage: Green through a "b" contact, Red to monitor trip coil. 3 - Four-hole NEMA pad for terminating three (3), 15 kV, single conductor, 750 MCM aluminum, shielded cables. 1 - Ground barfor connecting one (1) neutral conductor. 3 - Phase overcurrentrelays, General Electric type 12IAC77B811A or Westinghouse Style 265C047A07, Cat. #CO-llHllllN are acceptable. 1 - Neutral overcurrent relay, General Electric type 12IAC53B811A orWestinghouse Style 264C901A07, Cat. CO-9HllllN. 1 - Reclosing relay, General Electric type 12NLR21B2A orWestinghouse type RC, style 1867173, three adjustable reclosures with time setting of0-15-60 seconds with toggle cutoffswitch. 10.9 TWO FEEDER TIE COMPARTMENTS, UNITS 3 AND 5, Each Containing: 1 - Manuallyoperated loadbreak disconnect switch connecting the load side oftwo adjacentfeeder breakers. The switch shall have a minimum loadbreak rating of600 amperes. Provides for locking, ifenergized buses are accessible with the compartment open. A locking staple should extend through a slot in the compartment door so that padlock maybeused. External tie-switches are not acceptable. 10.10 ONE SET OFMETAL-CLAD SWITCHGEAR ACCESSORIES, Consisting Of, But Not Limited To: Provisions for mounting equipment necessary for the removal ofarc chutes during maintenance (if applicable). 1 - Breakerhandling dolly. 1 - Set secondary couplers. 1 - Breaker maintenance closing device. I-Arc chute lifter (ifrequired). 1 - Setbreaker tools.

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-Switchgear Seller shall supply sufficient scotchfill compound for locations where taped joints are used

on the unit. Booted joints are acceptable and preferred by the purchaser.

APPENDIX 1 TRANSFORMER BID DATA NAME OF BIDDER In addition to other data and descriptive material furnished with Bidder's Proposal, the Bidder shall fill in all spaces of the following Bid Data Section. The specifically listed data is in no way intended to limit the data submitted, and the Bidder is invited to submit all material that he believes necessary to provide a complete description of his offering. 1. RECEIVING AND INSTALLATION DATA A. Weight, lbs. 1. Transformer a. Shipping b. Installed --- 2. Oil, installed 3. Core and coil assembly, net 4. Tank and fittings, net 5. Heaviest shipping assembly, as shipped B. Oil, gallons C. Largest shipping section, 1, w, h, inches D. Transformer installed dimensions , inches 1. Overall height 2. Overall length Switchgear Seller shall supply sufficient scotchfill compound for locations where tapedjoints are used on the unit. Bootedjoints are acceptable and preferred bythe purchaser.

APPENDIX 1 TRANSFORMER BID DATA NAME OFBIDDER In addition to other data and descriptive material furnished with Bidder's Proposal, the Bidder shall fill in all spaces ofthe following BidData Section. The specifically listed data is inno way intended to limitthe data submitted, and the Bidder is invited to submit all material that hebelieves necessaryto provide a complete description ofhis offering. 1. RECEIVING AND INSTALLATIONDATA A. Weight,lbs. 1. Transformer

a. Shipping b. Installed 2. Oil, installed 3. Core and coil assembly, net 4. Tank and fittings, net 5. Heaviest shipping assembly, as shipped B. Oil, gallons C. Largest shipping section, 1, w, h, inches D. Transformer installed dimensions, inches 1. Overall height 2. Overall length

- 293. Overall width

4. Overall tank height 5. Minimum untanking height, base to crane hook 6. Tank only dimensions; length, width, height E. Describe parts removed for shipment: Radiators-Fans-Grounding Resistor and Miscellaneous Minor Access: II. RATING AND PERFORMANCE DATA A. Maximum permissible continuous transformer demand at rated voltage and at rated ambient temperature without exceeding standard hottest-spot temperature for the following conditions: 55°C 65°C Rise Rise 1. At self-cooled rating, MVA 2. At first stage forced-cooled rating, MVA B. Positive Impedance, percent H-X 1. Quoted 2. Minimum available without additional cost 3. Base MVA -- 4. Tolerance, percent C. Regulation at 100 percent, 55°C rise, OA load; percent H-X 1. 100 percent power factor 2. 90 percent power factor 3. 80 percent power factor D. Exciting current, percent 3. Overall width 4. Overall tankheight 5. Minimum untanking height, baseto cranehook 6. Tank only dimensions; length, width, height E. Describeparts removed for shipment: Radiators-Fans-Grounding Resistor and Miscellaneous MinorAccess: II. RATING AND PERFORMANCEDATA A. Maximumpermissible continuous transformer demand at rated voltage and at rated ambient temperature without exceeding standardhottest-spot temperature for the following conditions:

1. At self-cooled rating, MV A 2. At first stageforced-cooled rating, MV A B. Positive Impedance, percent H-X 1. Quoted 2. Minimum available without additional cost 3. Base MVA

-- 4. Tolerance, percent C. Regulation at 100 percent, 55°C rise, OA load; percent H-X 1. 100percentpowerfactor 2. 90 percent powerfactor 3. 80 percent powerfactor D. Exciting current, percent

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- 55°C 65°C Rise Rise1.

2. 3. 4. 95 percent voltage 100 percent voltage 105 percent voltage 110 percent voltage E. Efficiency at OA rating and 75°C winding temperature, percent 1. 2. 3. 4. 100 percent load 55°C temperature rise rating 75 percent load 50 percent load 25 percent load F. Guaranteed maximum losses at 75°C winding temperature, kW. 1. No-load losses

a. b.

c. 105 percent voltage at 2-1/2 percent tap 102 percent voltage at neutral tap 100 percent voltage at neutral tap 2. Total losses at 55°C rise OA/FA or OA/FOA rating assuming 102 percent voltage applied neutral tap

a. b. OA rating (80 percent) OA/FA or OA/FOA rating (100 percent) 3. Load losses (12R + stray)

a. b. At OA rating 55°C temperature rise At OA/FA or OA/FOA rating 55°C temperature rise 4. Cooling equipment demand at no-load 1. 95 percent voltage 2. 100 percent voltage 3. 105 percent voltage 4. 110 percent voltage E. Efficiency at OArating and 75°C winding temperature, percent 1. 100 percent load 55°C temperature rise rating 2. 75 percent load 3. 50 percent load 4. 25 percent load F. Guaranteed maximumlosses at 75°C winding temperature, kW. 1. No-load losses

a. 105 percent voltage at 2-112 percent tap b. 102 percent voltage at neutral tap

c. 100 percent voltage at neutral tap 2. Total losses at 55°C rise OAIFA or OAIFOArating assuming 102 percent voltage applied neutral tap

a. OArating (80 percent) b. OAIFA or OAIFOArating (100 percent) 3. Load losses (I2R 

### + stray)

a. At OArating 55°C temperature rise b. At OAIFA or OAIFOArating 55°C temperature rise 4. Cooling equipment demand at no-load

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-5. Additional cooling equipment demand at top OA/FA or OA/FOA rating (cooling equipment demand at no load is not to be included) III. OIL PRESERVATION SYSTEM Type IV. LTC Type Manufacturer Contact Replacement Interval (number of LTC operations before contact replacement is necessary)

APPENDIX 2 SWITCHGEAR BID DATA NAME OF BIDDER In addition to other data and descriptive material furnished with Bidder's Proposal, the Bidder shall fill in all spaces of the following Bid Data Section. The specifically listed data is in no way intended to limit the data submitted, and the Bidder is invited to submit all material that he believes necessary to provide a complete description of his offering. RECEIVING AND INSTALLATION DATA A. Weight, lbs. (total) 1. Cubicles a. Shipping b. Installed c. Heaviest shipping assembly as "shipped" 2. Protected aisle a. Shipped 5. Additional cooling equipment demand at top OAIFA or OAIFOArating (cooling equipment demand at no load is not to be included) III. OILPRESERVATION SYSTEM Type IV. LTC Type Manufacturer ContactReplacement Interval (number ofLTC operations before contactreplacement is necessary)

APPENDIX 2 SWITCHGEAR BID DATA NAME OFBIDDER In addition to other data and descriptive material furnished with Bidder's Proposal, the Bidder shall fill in all spaces ofthe following BidData Section. The specificallylisted data is in no wayintended to limitthe data submitted, and the Bidder is invited to submit all material that hebelieves necessary to provide a complete description ofhis offering. I. RECEIVING AND INSTALLATION DATA A. Weight, lbs. (total) 1. Cubicles

a. Shipping b. Installed

c. Heaviest shipping assembly as "shipped" 2. Protected aisle

a. Shipped

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-b. Installed c. Heaviest shipping assembly 3. Breaker a. Shipped b. Installed c. Heaviest Shipping Assembly B. Largest shipping section, 1, w, h, inches C. Switchgear installed dimensions, inches 1. Overall height 2. Overall length 3. Overall width II. RATING AND PERFORMANCE DATA A. Continuous current rating 1. Main bus 2. Breakers B. Short circuit current rating 1. Main bus 2. Breakers

APPENDIX 3 SELLER QUALITY PROGRAM REQUIREMENTS LEVEL B b. Installed

c. Heaviest shipping assembly 3. Breaker

a. Shipped b. Installed

c. Heaviest Shipping Assembly B. Largest shipping section, 1, w, h, inches C. Switchgear installed dimensions, inches 1. Overall height 2. Overall length 3. Overall width II. RATING AND PERFORMANCE DATA A. Continuous currentrating 1. Mainbus 2. Breakers B. Short circuit currentrating 1. Mainbus 2. Breakers

APPENDIX 3 SELLER QUALITY PROGRAM REQUIREMENTS LEVELB

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-1.0 INTRODUCTION

Seller shall establish, implement, and maintain a Quality Program which, as a minimum, includes the procedural elements listed under paragraph 3.0. Seller's Quality Program shall be subject to surveillance, evaluation, and verification by Purchaser or its authorized representative at all times during the period of Purchase Order performance. 2.0 QUALITY PROGRAM Seller shall maintain a formal Quality Program which describes the methods used to accomplish the objectives listed under each procedural element. The Quality Program shall describe Seller's organization, identify those responsible for establishing and implementing it, and identify those Seller personnel responsible for verifying quality. 3.0 QUALITY PROGRAM ELEMENTS The following Quality Program procedural elements shall, as a minimum, be addressed in Seller's Quality Program. The Quality Program shall be established and implemented commencing with Purchase Order award. 3.1 Procurement Control Methods for defining design requirements in Seller's purchase orders and subcontracts including changes thereto. Methods for performing and documenting receiving inspections and tests. 3.2 Document Control Methods for reviewing, approving, releasing, and controlling documentation; e.g., drawings, instructions, procedures, and specifications including any revisions thereof. 3.3 Identification and Control of Material, Parts, and Components Methods for identifying and controlling materials, parts, and components from receipt through the fabrication/construction cycle and final delivery. 3.4 Inspection and Test Control Methods for performing in-process and final inspections and test. Methods for documenting and evaluating inspection and test results. 1.0 INTRODUCTION Seller shall establish, implement, and maintain a QualityProgram which, as a minimum, includes the procedural elements listed under paragraph 3.0. Seller's QualityProgram shall be subjectto surveillance, evaluation, and verificationbyPurchaser orits authorized representative at all times during theperiod of Purchase Orderperformance. 2.0 QUALITY PROGRAM Seller shall maintain a formal QualityProgram which describes the methods used to accomplish the objectives listed under each procedural element. The QualityProgram shall describe Seller's organization, identify those responsible for establishing and implementing it, and identifythose Sellerpersonnel responsible for verifying quality. 3.0 QUALITYPROGRAMELEMENTS Thefollowing Quality Programprocedural elements shall, as a minimum, be addressed in Seller's Quality Program. The Quality Program shall beestablished and implemented commencing with Purchase Order award. 3.1 Procurement Control Methods for defining design requirements in Seller's purchase orders and subcontracts including changes thereto. Methods for performing and documenting receiving inspections and tests. 3.2 Document Control Methods for reviewing, approving, releasing, and controlling documentation; e.g., drawings, instructions, procedures, and specifications including anyrevisions thereof. 3.3 Identification and Control ofMaterial, Parts, and Components Methods for identifying and controlling materials, parts, and components from receipt through the fabrication/construction cycle and final delivery. 3.4 Inspection and Test Control Methods for performing in-process and final inspections and test. Methods for documenting and evaluating inspection and test results.

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-Methods for indicating inspection and test status. 3.5 Measurement and Test Equipment Control (M&TE) Method for calibrating and controlling M&TE used as an acceptance media. 3.6 Handling, Storage, and Shipping Control Methods for controlling special requirements for handling, lifting, rigging, storing, shipping, cleaning and packaging materials, parts, and components. 3.7 Nonconformance Control Methods for identifying, recording, dispositioning, and controlling nonconforming conditions. Methods for obtaining and verifying corrective action to preclude repetition. Methods for obtaining Purchaser or its authorized representative disposition on nonconformances outside purchase orders or subcontract requirements. 3.8 Records Methods for initiating, maintaining, controlling, and delivering quality related records. 3.9 Special Process Control Methods for establishing and maintaining qualified procedures, personnel, and equipment for special processes such as welding, heat treating, cleaning, nondestructive examination, etc. 3.10 Fabrication/Construction Flow Seller shall provide to Purchaser or its authorized representative a flow diagram which depicts the complete construction/fabrication cycle including processing and inspection/testing points. Purchaser or its authorized representative reserves the right to designate inspection/test "hold points" which shall be incorporated in the plan at no additional cost to Purchaser. Methods for indicating inspection and test status. 3.5 Measurement and TestEquipment Control (M&TE) Method for calibrating and controlling M&TE used as an acceptance media. 3.6 Handling, Storage, and Shipping Control Methods for controlling special requirements for handling, lifting, rigging, storing, shipping, cleaning and packaging materials, parts, and components. 3.7 Nonconformance Control Methods for identifying, recording, dispositioning, and controlling nonconforming conditions. Methods for obtaining and verifying corrective action to precluderepetition. Methods for obtaining Purchaser or its authorized representative disposition onnonconformances outside purchase orders or subcontractrequirements. 3.8 Records Methods for initiating, maintaining, controlling, and delivering qualityrelated records. 3.9 Special Process Control Methods for establishing and maintaining qualified procedures, personnel, and equipmentfor special processes such as welding, heattreating, cleaning, nondestructive examination, etc. 3.10 Fabrication/ConstructionFlow Seller shall provide to Purchaser or its authorized representative a flow diagram which depicts the complete construction/fabrication cycle including processing and inspection/testingpoints. Purchaser or its authorized representative reserves the right to designate inspection/test "hold points" which shall be incorporated in the plan at no additional cost to Purchaser.

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