# PART XI -- LIGHTING INSTALLATION

### **ITEM L‑101 AIRPORT ROTATING BEACONS**

DESCRIPTION

**101‑1.1** This item shall consist of furnishing and installing airport
rotating beacons. This work shall include the mounting, leveling,
wiring, painting, servicing, and testing of the beacon and all materials
and incidentals necessary to place the beacons in operating condition as
a completed unit to the satisfaction of the Engineer. This item shall
include a mounting platform if specified in the plans.

EQUIPMENT AND MATERIALS

**101‑2.1 GENERAL.**

**a.** Airport lighting equipment and materials covered by Federal
Aviation Administration (FAA) specifications shall be certified and
listed under Advisory Circular (AC) 150/5345-53, Airport Lighting
Equipment Certification Program.

**b.** All other equipment and materials covered by other referenced
specifications shall be subject to acceptance through manufacturer\'s
certification of compliance with the applicable specification when
requested by the Engineer.

**c.** Manufacturer's certifications shall not relieve the Contractor of
the Contractor's responsibility to provide materials in accordance with
these specifications and acceptable to the Engineer. Materials supplied
and/or installed that do not materially comply with these specifications
shall be removed, when directed by the Engineer and replaced with
materials, which do comply with these specifications, at the sole cost
of the Contractor.

**d.** All materials and equipment used to construct this item shall be
submitted to the Engineer for approval prior to ordering the equipment.
Submittals consisting of marked catalog sheets or shop drawings shall be
provided. Submittal data shall be presented in a clear, precise and
thorough manner. Original catalog sheets are preferred. Photocopies are
acceptable provided they are as good a quality as the original. Clearly
and boldly mark each copy to identify pertinent products or models
applicable to this project. Indicate all optional equipment and delete
non-pertinent data. Submittals for components or electrical equipment
and systems shall identify the equipment for which they apply on each
submittal sheet. Markings shall be boldly and clearly made with arrows
or circles (highlighting is not acceptable). Contractor is solely
responsible for delays in project accruing directly or indirectly from
late submissions or resubmissions of submittals.

**e.** The data submitted shall be sufficient, in the opinion of the
Engineer, to determine compliance with the Contract Documents plans and
specifications. \[The Contractor\'s submittals shall be neatly bound in
a properly sized 3-ring binder, tabbed by specification section.\] The
Engineer reserves the right to reject any and all equipment, materials
or procedures, which, in the Engineer's opinion, does not meet the
system design and the standards and codes, specified herein.

**f.** All equipment and materials furnished and installed under this
section shall be guaranteed against defects in materials and workmanship
for a period of at least \[twelve (12) months\] from final acceptance by
the Owner. The defective materials and/or equipment shall be repaired or
replaced, at the Owner\'s discretion, with no additional cost to the
Owner.

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> **The engineer should specify the form in which submittals are to be
> received and number of copies.**
>
> **The length of time for guarantee of materials and workmanship should
> be as stated in the contract between the owner and contractor and the
> contract special provisions.**

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**101-2.2 BEACON.** The beacon shall meet the requirements of AC
150/5345-12, Specification for Airport and Heliport Beacons.

**101-2.3 PANEL BOARDS AND BREAKERS.** Panel boards and breakers shall
conform to the requirements of Fed. Spec. W-P-115.

**101-2.4 WEATHERPROOF CABINETS.** The weatherproof cabinets shall
conform to National Electrical Manufacturers Association Standards and
shall be constructed of steel not less than No. 16 USS gauge.

**101-2.5 WIRE.** Wire in conduit rated up to 5,000 volts shall conform
to AC 150/5345-7, Specification for L‑824 Underground Electrical Cable
for Airport Lighting Circuits for Rubber Insulated Neoprene Covered
Wire, or Fed. Spec. J-C-30, Type RHW, for rubber insulated fibrous
covered wire. For ratings up to 600 volts, the thermoplastic wire
conforming to Fed. Spec. J-C-30, Types TW, THW, and THWN, shall be
used.  The wires shall be of the type, size, number of conductors, and
voltage shown in the plans or in the proposal.

**101-2.6 CONDUIT.** Rigid steel conduit and fittings shall conform to
the requirements of Underwriters Laboratories Standard 6, 514, and 1242.

**101-2.7 PAINT.**

**a.** Priming paint for ungalvanized metal surfaces shall be a high
solids alkyd primer conforming to TT‑P‑664D.

**b.** Priming paint for galvanized metal surfaces shall be zinc
dust-zinc oxide primer paint conforming to MIL‑DTL‑24441/19B. If
necessary, add not more than ½ pint (0.06 liter) of turpentine to each
gallon (liter).

**c.** Orange paint for the body and the finish coats on metal and wood
surfaces shall consist of a ready-mixed non-fading paint meeting the
requirements of Fed. Spec. TT-E-489. The color shall be in accordance
with Federal Standard 595, Aviation Gloss Orange Number 12197.

**d.** White paint for body and finish coats on metal and wood surfaces
shall be ready-mixed paint conforming to the Master Painter's Institute,
Reference #9, Exterior Alkyd, Gloss, VOC Range E2.

**e.** Priming paint for wood surfaces shall be mixed on the job by
thinning the above-specified orange or white paint with ½ pint (0.06 mm)
of raw linseed oil to each gallon (liter).

CONSTRUCTION METHODS

**101-3.1. PLACING THE BEACON.** The beacon shall be mounted on a beacon
tower, platform, or building roof as shown in the plans.

**101-3.2 HOISTING AND MOUNTING.** The beacon shall be hoisted to the
mounting platform by using suitable slings and hoisting tackle. Before
fastening the beacon to the mounting platform, the mounting holes shall
be checked for correct spacing. Beacon base or mounting legs shall not
be strained or forced out of position to fit incorrect spacing of
mounting holes. The beacon base shall be raised first, set in position,
and bolted in place. The drum shall then be raised and assembled to the
base.

**101-3.3 LEVELING.** After the beacon has been mounted in place, it
shall be accurately leveled following manufacturer's instructions. The
leveling shall be checked in the presence of the Engineer and shall be
to the Engineer\'s satisfaction.

**101-3.4 SERVICING.** Before placing the beacon in operation, the
Contractor shall check the manufacturer's manual for proper servicing
requirements. Follow the manufacturer's servicing requirements for each
size beacon.

**101-3.5 BEAM ADJUSTMENT.** After the beacon has been mounted and
leveled, the elevation of the beams shall be adjusted. The final beam
adjustments shall be made at night so that results can be readily
observed. The beams shall be adjusted to the elevation directed by the
Engineer or as shown in the plans, except that, in no case shall the
elevation of the beams be less than 2 degrees above the horizontal.

**101-3.6 BEACON MOUNTING PLATFORM.** Where the beacon is to be mounted
at a location other than the beacon tower and where a special mounting
platform is required, the construction of this mounting platform and any
necessary lightning protection equipment shall be in accordance with the
details shown in the plans.

**101-3.7 WIRING.** The Contractor shall furnish all necessary labor and
materials and shall make complete above ground electrical connections in
accordance with the wiring diagram furnished with the project plans. The
electrical installation shall conform to the requirements of the latest
edition of National Fire Protection Association, NFPA-70, National
Electric Code.

Copies of the National Electric Code may be obtained form the National
Fire Protection Associations, Inc., One Batterymarch Park, Quincy,
Massachusetts 02269.

If underground cable for the power feed from the transformer vault to
the beacon site and duct for this cable installation is required, the
cable, ground rods and duct shall be installed in accordance with and
paid for as described in Item L-108, Underground Power Cable for
Airports, and Item L‑110, Airport Underground Electrical Duct Banks and
Conduit.

Unless otherwise specified, the Contractor shall connect the tell-tale
relay mechanism in the beacon to energize the tower obstruction light
circuit when failure of the beacon service (primary) lamp occurs.

If lightning protection is specified in the plans or proposal as a part
of this item, it shall be installed in accordance with 103‑2.3 in Item
L-103, Airport Beacon Towers.

**101-3.8 PANEL AND CABINET.** Unless otherwise specified, the
Contractor shall furnish and install at the top of the beacon tower or
mounting platform a circuit-breaker panel consisting of four 15-ampere
breakers mounted in a weather-proof cabinet to provide separate
protection for the circuits to the beacon lamps, motor, obstruction
lights, and other equipment. The cabinet shall be located on the side of
the beacon platform, as directed by the Engineer.

**101-3.9 CONDUIT.** All exposed wiring shall be run in not less than ¾
inch (19 mm) galvanized rigid steel conduit. No conduit shall be
installed on top of a beacon platform floor. All conduit shall be
installed to provide for drainage. If mounted on a steel beacon tower,
the conduit shall be fastened to the tower members with "wraplock"
straps, clamps, or approved fasteners, spaced approximately 5 feet (150
cm) apart. The conduit shall be fastened to wooden structures with
galvanized pipe straps and with galvanized wood screws not less than No.
8 or less than 1‑¼ inches (31 mm) long. There shall be at least two
fastenings for each 10-foot (3 m) length.

**101-3.10 BOOSTER TRANSFORMER.** If shown in the plans or specified in
job specifications, a booster transformer to compensate for voltage drop
to the beacon shall be installed in a suitable weatherproof housing
under or on the tower platform or at the base of the tower. The
installation shall be as indicated in the plans and described in the
proposal. If the booster transformer is required for installation remote
from the beacon, it shall be installed in accordance with and paid for
\[ \].

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> **The engineer should specify how the booster transformer will be paid
> for when located remotely from the beacon tower, i.e. as part of the
> beacon installation or, if installed in the vault, as part of the
> vault equipment.**

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**101-3.11 PHOTOELECTRIC CONTROL.** If shown in the plans or specified
in job specifications, the Contractor shall furnish and install an
automatic control switch at the location indicated in the plans. The
switch shall be a photoelectric type. It shall be a standard
commercially available unit that will energize when the northern sky
illuminance falls below 60 footcandles (645.8 lux) but before reaching a
level of 35 footcandles (367.7 lux). The photoelectric switch should
de-energize when the northern sky illuminance rises to a level of not
more than 60 footcandles (645.9 lux). It shall be installed, connected,
and adjusted in accordance with the manufacturer\'s instructions.

**101-3.12 OBSTRUCTION LIGHTS.** Unless otherwise specified, the
Contractor shall install on the top of the beacon tower or mounting
platform two L-810 obstruction lights on opposite corners. These lights
shall be mounted on conduit extensions to a height of not less than 4
inches (100 mm) above the top of the beacon. They shall be connected in
series into the tell-tale circuit with the necessary relay and wiring
connections.

**101-3.13 PAINTING.** If construction of a wooden mounting platform is
stipulated in the proposal as part of this item, all wooden parts of the
platform shall be given one priming coat of white or aviation-orange
paint after fabrication but before erection and one body and one finish
coat of aviation-orange paint after erection. Steel mounting platforms
shall be given one priming coat of corrosion‑inhibiting primer before
erection and one body and one finish coat of aviation-orange paint after
erection. All equipment installed under this contract and exposed to the
weather shall be given one body and one finish coat of aviation-orange
or white paint as required. This shall include beacon (except glass
surfaces), beacon base, breaker cabinet, all conduit, and transformer
cases. It shall not include air terminals or obstruction light globes.

The paint shall be applied uniformly in the proper consistency by
skilled painters. The finished paint shall be free from sags, holidays,
and smears. Each coat of paint shall be given ample time to dry and
harden before the next coat of paint is applied. A minimum of 3 days
shall be allowed for drying on wood surfaces, and a minimum of 4 days
shall be allowed for drying on metal surfaces. Painting shall not be
done in cold, damp, foggy, dusty, or frosty atmospheres, or when air
temperature is below 40º F (4º C), nor started when the weather forecast
indicates such conditions for the day.

All surfaces shall be cleaned before painting. The surfaces shall be dry
and free from scale, grease, rust, dust, and dirt when paint is applied.
All knots in wood surfaces shall be covered with shellac immediately
before applying the priming coat of paint. Nail holes and permissible
imperfections shall be filled with putty. The ready-mixed paint shall be
thinned for the priming and body coats in accordance with the
manufacturer\'s recommendations. In the absence of such recommendations,
the following shall apply:

**a.** Body coats (for both wood and steel surfaces) - add ½ pint (0.06
liter) of turpentine to each gallon (liter) of ready-mixed paint for
body coats.

**b.** Finish coats (for both wood and steel surfaces) the ready-mixed
paint shall be used as it comes from the container for finish coats.

**101-3.14 TESTING.** The installation shall be fully tested in
operation as a completed unit prior to acceptance. These tests shall
include operation of the lamp-changer operation and taking megger and
voltage readings. The insulation resistance to ground of the beacon
supply circuit shall be not less than 50 megohms. Testing equipment
shall be furnished by the Contractor. Tests shall be conducted in the
presence of the Engineer and shall be to the Engineer's satisfaction.

METHOD OF MEASUREMENT

**101-4.1** The quantity to be paid for shall be the number of beacons
installed as completed units in place, accepted, and ready for
operation.

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BASIS OF PAYMENT

**101-5.1** Payment will be made at the contract unit price for each
completed and accepted job. This price shall be full compensation for
furnishing all materials and for all preparation, assembly, and
installation of these materials, and for all labor, equipment, tools,
and incidentals necessary to complete this item.

Payment will be made under:

Item L-101-5.1 Airport Rotating Beacon, in place---per unit

MATERIAL REQUIREMENTS

AC 150/5345-7 Specification for L-824 Underground Cable for Airport
Lighting Circuits

AC 150/5345-12 Specification for Airport and Heliport Beacons

FED SPEC J-C-30 Cable and Wire, Electrical (Power, Fixed Installation)

> (cancelled; replaced by A-A-59544 Cable and Wire, Electrical
>
> (Power, Fixed Installation))

FED SPEC TT-E-489 Enamel, Alkyd, Gloss, Low VOC Content

FED SPEC TT-P-664D Primer Coating, Alkyd, Corrosion-Inhibiting, Lead and
Chromate Free, VOC-Compliant

FED SPEC W-P-115 Panel, Power Distribution

FED STD 595 Colors Used in Government Procurement

MIL-P-24441/19B Paint, Epoxy-Polyamide, Zinc Primer, Formula 159, Type
III

Underwriters Laboratories Standard 6 Rigid Metal Conduit

Underwriters Laboratories Standard 514 Fittings for Conduit and Outlet
Boxes

Underwriters Laboratories Standard 1242 Intermediate Metal Conduit

NFPA-70 National Electric Code

NFPA-780 Standard for the Installation of Lightning Protection Systems

Master Painter's Institute

**END OF ITEM L-101**

**Intentionally Left Blank**