# .AccreditedStandards Committee C78 ElectricLamps Secretariat: NationalElectrical ManufacturersAssociation 2101 LStreet,N.W. Washington, D.C. 20037 (202)457·1981



### RETURN TO:

DUE DATE:

# reb~~~ Vicki Schofield

# ~~~~ NEMA

-

## \~ 2101 L Street,

### NW~~**WaShington,~~ ,~**  MARCH 29,**l~~** 

### LETTER BALLOT

## ,\~\~ITED STANDARDS COMMITTEE C78 

### ON

. ELECTRIC LAMPS Topic: Approval of proposed supplement C78.

### 2x-19xx, Single-Ended Quad Tubes

- Preheat-Start Fluorescent Lamps with I·nternal Means of Starting with GX32d Bases Authorized by: Distributed by: T.A. Pickett, Chairman V.H. Schofield, Secretary Reference Document(s): C78/3545 

### Statement: The enclosed proposed supplement to C78.2-19xx standardizes three single-ended quad tube

- preheat-start fluorescent lamps with GX32d bases. Proposed revised C78.2-19xx has already been submitted to ANSI for pUblication. As usual, any supplements with be incorporated into the main standard when it is next revised. Question: Do you approve proposed supplement C78.2x-19xx
Yes Yes w/comment No (State Reason) Abstain (State Reason) NOTE: If you cannot vote in the affirmative and wish to be recorded as not voting or negative, please so state and explain the reasons for your position on the reverse side of this ballot or on a separate sheet.

o V E R 

# AccreditedStandardsCommittee C78 Secretariat: NationalElectrical ManufacturersAssociation 2101 LStreet,N.W. Washington,D.C

. 20037 (202)457-1981 

# ElectricLamps

RETURN TO:

DUE DATE:

Topic:

# ;"~~~~~ Vicki Schofield

# \®~~~D NEMA

. ,\.}) 2101 L Street,

### NW~~ Washington,

### ~~**,~** MARCH 29,**l~\}.>**

# ~**~** LETTER BALLOT

.\)

# \~ITED STANDARDS COMMITTEE C78 ON ELECTRIC LAMPS Approval of proposed supplement C78.2x-19xx, Single-Ended Quad Tubes

- Preheat-Start Fluorescent Lamps with Internal Means of Starting with GX32d Bases 

### Authorized by: T.A. Pickett, Chairman Oistributed by: V.H

. Schofield, Secretary 

### Reference Document(s): C78/3545 

### statement: The enclosed proposed supplement to C78.2-19xx standardizes three single-ended quadtube

- preheat-start fluorescent lamps with GX32d bases. Proposed revised C78.2-19xx has already 

### been submitted to ANSI for publication. As usual, any supplements with be incorporated into the main standard when it is next revised. Question: Do you approve proposed supplement C78.2x-19xx

___Yes

___ Yes w/comment

___ No (State Reason)

___ Abstain (State Reason) NOTE: If you cannot vote in the affirmative and wish to be recorded as not voting or negative, please so state and explain the reasons for your position on the reverse side of this ballot or on a separate sheet.



### o V E R

### signature: Print or Type Name: organization Represented: Date: Ene.
ee: S. Hopper, NEMA Engineering C78-2 Members, for information only signature:**~rint** 

### or Type Name: organization Represented: Date: Ene.
ee: S. Hopper, NEMA Engineering C78-2 

### Members, for information onlyC78.2x-19xx Page 1 15 WATT, SINGLE-ENDED, QUAD TUBE PREHEAT-START FLUORESCENT LAMP WITH INTERNAL MEANS OF STARTING LAMP DESCRIPTION Lamp Abbreviation. • Nominal Wattage. • • 

# . . . 

# . . . • 15W/6T5/Q/GX32/PH

• 15 Nominal Dimensions • OAL WIDTH DEPTH 142 mm 40 mm 40 mm Bulb . • • Base Type See Figure One GX32d-1 Base Dimensions: Base dimensions will subsequently be incorporated into standards being developed by American National Standards Committee on lamp bases and holders, C81. Dimensional Characteristics Maximum Lamp Dim. (rom) Maximum Lamp Outline Dim. (mm) H Base Face to Top of Lamp•....•... C Width of Lamp •...•••••....••.••• G Depth of Lamp •..•••••••.•.•••••• 117 41 (Note 1) 41 (Note 1) 117 45 (Note 2) 45 (Note 2) Note 1: Applies to glass length only. Note 2: Max. lamp outline dimensions, take into consideration bulb/base misalignment. 

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'lop View FIGURE 1 C78.2x-19xX Page 1 15 WATT, SINGLE-ENDED, QUAD TUBE PREHEAT-START FLUORESCENT LAMP WITH INTERNAL MEANS OF STARTING LAMP DESCRIPTION Lamp Abbreviation. Nominal wattage. . ••• 15W/6T5/Q/GX32/PH 15 Nominal Dimensions



### Bulb Base Type Base Dimensions: OAL WIDTH 142 mm 40 mm See Figure One GX32d-1 DEPTH 40 mm

Base dimensions will subsequently be incorporated into standards being developed by American National standards committee on lamp bases and holders, C8l. Dimensional Characteristics

H Base Face to Top of Lamp.... ..... C Width of Lamp ................... G Depth of Lamp ...................Maximum Lamp Dim. (mm)

117 41 (Note 1) 41 (Note 1) Note 1: Applies to glass length only. Maximum Lamp Outline Dim. (mm) 117 45 (Note 2) 45 (Note 2)

Note 2: Max. lamp outline dimensions, take into consideration bulb/base misalignment.

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FIGURE 1C78.2x-19xx Page 2 Electrical Characteristics Electrical Characteristics and Light Output vary with ambient temperature. Lamp operating Characteristics Watts......•...••••••••••••.•••••• Volts . Amperes••••••••••••••••••••••••••• 15 53 0.325 The preceding lamp operating characteristics are based on base up operation in a preheat-start-type circuit in an ambient temperature of 25·C (77·F) with a 60 Hz sinusoidal power supply and a reference ballast having the characteristics shown in the following section: Reference Ballast Characteristics Rated Input Voltage

. Reference Current...•.•.•....•...• Impedance . 118 0.325A 290 ohms The general requirements for reference ballasts are stated in American National Standard specifications for fluorescent lamp reference ballast, ANSI C82.3-1983. Cathode Characteristics Type.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low resistance Note: Objective resistance of both cathodes in series 25 OHMS Lamp Starting Requirements The following values are intended to provide reliable starting at the ambient temperatures indicated and at higher temperatures up to a maximum of 110·F (43·C). At temperatures near the top of that range, however, initial starting will be secured but not necessarily immediate restarting. Voltage Between Lamp Terminals At 32·F (O·C) and above, min. rms••••••••• 108V max. pk.•••••••• 400V The voltage limits shall be met at any primary voltage between 90% and 100% of rated voltage. Electrical Characteristics C78.2x-19xx Page 2

Electrical Characteristics and Light output vary with ambient temperature. Lamp operating Characteristics Watts

. ...................... ••• ... Volts......•.......••.......•••... Amperes............•.•..........•. 15 53 0.325 The preceding lamp operating characteristics are based on base up operation in a preheat-start-type circuit in an ambient temperature of 2S"C (77"F) with a 60 Hz sinusoidal power supply and a reference ballast having the characteristics shown in the following section: Reference Ballast Characteristics Rated Input Voltage

............... Reference Current

................. Impedance........................• 118 0.325A 290 ohms The general requirements for reference ballasts are stated in American National Standard specifications for fluorescent lamp reference ballast, ANSI C82.3-1983. Cathode Characteristics Type.

. . ... .. . . . .. .. ... . ... ... . . . .. . ... Low resistance Note: Objective resistance of both cathodes in series**~** 25 OHMS Lamp Starting Requirements The following values are intended to provide reliable starting at the ambient temperatures indicated and at higher temperatures up to a maximum of 110'F (43"C). At temperatures near the top of that range, however, initial starting will be secured but not necessarily immediate restarting. Voltage Between Lamp Terminals At 32°F (O"C) and above, 

# . ml.n. rms.••......

max. pk...••.... 108V 400V The voltage limits shall be met at any primary voltage between 90% and 100% of rated voltage.C78.2x-19xx Page 3 Preheat Current Min. at 90% of rated primary voltage.••..• Max. at 106% of rated primary voltage...•• Radio Interference Suppression 0.280A 0.650A

In order to assist in suppressing radio interference, starters shall contain a capacitor within the limits of .0008 to .010 microfarad connected internally in such a manner as to be effectively in parallel with the lamp. Ballast Design Note The values in this standard are based on 60 Hz operating characteristics. The RFI suppression capacitor may affect starting or operating parameters in high frequency ballasts. Application Design Note The temperature of the lamp base measured at the bottom of the guide post (Point X in FIG. 1) shall not exceed 85°C (higher temperature under consideration). Note 1: This temperature shall be measured: A. with a lamp that is within 2.5% of the lamp operating characteristics. B. With a ballast operating at 106% of rated voltage. C. In the intended luminaire at the maximum operating temperature. Note 2: A higher guide post temperature may be acceptable. Consult lamp manufacturer. Note 3: This temperature limit is necessitated by the internal radio interference suppression capacitor incorporated into the base. Preheat Current Min. at 90% of rated primary voltage

. .. ... Max. at 106% of rated primary voltage

. .... Radio Interference Suppression O.280A O.650A C78.2x-19xX Page 3

In order to assist in suppressing radio interference, starters shall contain a capacitor within the limits of .0008 to .010 microfarad connected internally in such a manner as to be effectively in parallel with the lamp. Ballast Design Note The values in this standard are based on 60 Hz operating characteristics. The RFI suppression capacitor may affect starting or operating parameters in high frequency ballasts. Application Design Note The temperature of the lamp base measured at the bottom of the guide post (Point X in FIG. 1) shall not exceed 8S-C (higher temperature under consideration). Note 1: This temperature shall be measured: A. With a lamp that is within 2.S% of the lamp operating characteristics. B

. with a ballast operating at 106% of rated voltage. C. In the intended luminaire at the maximum operating temperature. Note 2: A higher guide post temperature may be acceptable. Consult lamp manufacturer. Note 3: This temperature limit is necessitated by the internal radio interference suppression capacitor incorporated into the base.C78.2x-19xx Page 4 20 WATT, SINGLE-ENDED, QUAD TUBE PREHEAT-START FLUORESCENT LAMP WITH INTERNAL MEANS OF START'ING. LAMP DESCRIPTION Lamp Abbreviation••••••••••.•••••••.•• 20W/6T5/Q/GX32/PH Nominal Wattage..•..••••...•..••.••.•• 20 Nominal Dimensions.••••••••....•••.••• OAL WIDTH DEPTH 155 mIn 40 mm 40 nun Bulb See Figure One Base Type..........•••.••.•..........• GX32d-2 Base Dimensions: Base dimensions will SUbsequently be incorporated into standards being developed by American National Standards committee on lamp bases and holders, C81. Dimensional Characteristics Maximum Lamp Dim. (rom) Maximum Lamp Outline Dim. (mm) H Base Face to Top of Lamp

. C Width of Lamp.•.•.•.•••.....•.. G Depth of Lamp....••.••.•.....•. 130 41 (Note 1) 41 (Note 1) 130 45 (Note 2) 45 (Note 2) Note 1: Applies to glass length only. Note 2: Max. lamp outline dimensions, take into consideration**bUlb/ba~e** misalignment.

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### l'-x FIGURE 1 C78.2x-l9xx Page 4 20 WATT, SINGLE-ENDED, QUAD TUBE PREHEAT-START FLUORESCENT LAMP WITH INTERNAL MEANS OF START'ING. LAMP DESCRIPTION Lamp Abbreviation••••• • ••••••••••••••• 20W / 6T5/ Q / GX32/ PH Nominal wattage......... . ... . .. ... . ... 20 Nominal Dimensions................ . ... OAL 155 lIIl1I WIDTH DEPTH 40 

### mm 40 mm Bulb. . . . .. . . . . .... . . . . .. ....... . . . . . . . See Figure One Base Type.................... . ........ GX32d-2 Base Dimensions: Base dimensions will subsequently be incorporated into standards being developed by American National Standards committee on lamp bases and holders, CSl. D

imensional Characteristics

H Base Face to Top of Lamp..... . . C width of Lam p.................. G Depth of Lamp...... . ........... Maximum Lamp Dim. (InJn) 130 41 (Note 1) 41 (Note 1) Note 1: Applies to glass length only. Maximum Lam p Outline Dim. (m m) 130 45 (Note 2) 45 (Note 2)

Note 2: Max. lamp outline dimensions, take into consideration**bulb ba~e**  misalignment.

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FIGURE 1C78.2X-19xx Page 5 Electrical Characteristics Electrical characteristics and light output vary with ambient temperature. Lamp Operating Characteristics Watts.............................. 20 Volts.............................. 53 Amperes. . . . • • . . • • • • • • . • • • . • • • • • • • . • 0.450 The preceding lamp operating characteristics are based on base up operation in a preheat-start-type circuit at an ambient temperature of 25°C (77°F) with a 60 Hz sinusoidal power supply and a reference ballast having the characteristics shown in the following section: Reference Ballast Characteristics Rated Input Voltage.•.•.•.........• 118V Reference current.................. O.45OA Impedance. . . . . . . . . . . . . . . . . . . . . . . . . . 2090 The general requirements for reference ballasts are stated in American National Standard specifications for fluorescent lamp reference ballast, ANSI C82.3-1983. Cathode Characteristics Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low resi stance Note: Objective resistance of both cathodes in series 25 OHMS max. Lamp Starting Requirements The following values are intended to provide reliable starting at the ambient temperatures indicated and at higher temperatures up to a maximum of 110°F (50°C). At temperatures near the top of that range, however, initial**s~arting** will be secured but not necessarily immediate restarting. Voltage Between Lamp Terminals At 32°F (O°C) and above, min.**~s** ••••••••••.•••••.• 108V max. pk 400V The voltage limits shall be met at any primary voltage between 90% and 110% of rated voltage. Electrical Characteristics C78.2x-l9xx Page 5

Electrical characteristics and light output vary with ambient temperature. Lamp Operating Characteristics watts.............................. 20 Volts.............................. 53 Amperes............................ 0.450 The preceding lamp operating characteristics are based on base up operation in a preheat-start-type circuit at an ambient temperature of 25'C (77°F) with a 60 Hz sinusoidal power supply and a reference ballast having the characteristics shown in the following section: Reference Ballast Characteristics Rated Input Voltage................ 118V Reference current.................. 0.450A Impedance

.......................... 209n The general requirements for reference ballasts ar'e stated in American National Standard specifications for fluorescent lamp reference ballast, ANSI CB2.3-1983. Cathode Characteristics Type.

. . .. . . .. .. . ... . ... . . . ........• Low resistance Note: Objective resistance of both cathodes in series 25 OHMS max. Lamp Starting Requirements The following values are intended to provide reliable starting at the ambient temperatures indicated and at higher temperatures up to a maximum of llO'F (50'C). At temperatures near the top of that range, however, initial s. tarting will be secured but not necessarily immediate restarting. Voltage Between Lamp Terminals At 32'F (O'C) and above, min. rms.................. 10BV max. pk......•............ 400V The voltage limits shall be met at any primary voltage between 90% and 110% of rated voltage.C78.2x-19xx Page 6 PREHEAT CURRENT Min. at 90% of rated primary voltage.••••••.••••••• 0.405A Max. at 106% of rated primary voltage.•••••..••...• 0.850A Radio Interference Suppression In order to assist in suppressing radio interference, starters shall contain a capacitor within the limits of .0008 to .010 microfarad connected internally in such a manner as to be effectively in parallel with the lamp. Ballast Design Note The values in this standard are based on 60 Hz operating characteristics. The RFI suppression capacitor may affect starting or operating parameters in high frequency ballasts. Application Design Note The temperature of the lam base measured at the bottom of the guide post (Point X in FIG. 1) shall not exceed 85°C (higher temperature under consideration). Note:

Note 2:
Note 3: This temperature shall be measured: A) with a lamp that is within 2.5% of the lamp operating characteristics. B) with a ballast operating at 106% of rated voltage. C) In the intended luminaire at the maximum operating temperature. A higher guide post temperature may be acceptable. Consult lamp manufacturer. This temperature limit is necessitated by the internal radio interference suppression capacitor incorporated into the base. C78.2x-19xX Page 6 

### PREHEAT CURRENT Min. at 90\ of rated primary voltage...........•... 0.40SA Max. at 106\ of rated primary voltage

.............. 0.850A Radio Interference Suppression In order to assist in suppressing radio interference, starters shall contain a capacitor within the limits of .0008 to .010 microfarad connected internally in such a manner as to be effectively in parallel with the lamp. Ballast Design Note The values in this standard are based on 60 Hz operating characteristics. The RFI suppression capacitor may affect starting or operating parameters in high frequency ballasts. Application Design Note The tem perature of the lam base measured at the bottom of the guide post (Point X in FIG. 1) shall not exceed 8S·C (higher temperature under consideration). Note:

Note 2:
Note 3: This temperature shall be measured: A) With a lamp that is within 2.5% of the lamp operating characteristics. B) with a ballast operating at 106\ of rated voltage. C) In the intended luminaire at the maximum operating temperature. A higher guide post temperature may be acceptable. Consult lamp manufacturer. This temperature limit is necessitated by the internal radio interference suppression capacitor incorporated into the base.C78.2x-19xx Page 7 27 WATT, SINGLE-ENDED, QUAD TUBE PREHEAT-START FLUORESCENT LAMP WITH INTERNAL MEANS OF STARTING Lamp Description Lamp Abbreviation.....•••••••••••.•••• 27W/7T5/Q/GX32/PH Nominal Wattage..•••.•.•••••..•••••••. 27 Nominal Dimensions.••.••.••••.•••••••• OAL WIDTH DEPTH 171 rnm 40 rnm 40 rom Bulb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Figure One Base Type GX32d-3 Base Dimensions: Base dimensions will subsequently be incorporated into standards being developed by American National Standards Committee on lamp bases and holders, C8l. Dimensional Characteristics Maximum Lamp Dim. (rnm) Maximum Lamp Outline Dim. (mm) H Base Face to Top of Lamp.....•.• 146 C Width of Lamp........•••.•...•.• 41 (Note 1) G Depth of Lamp........••••.....•. 41 (Note 1) Note 1: Applies to glass length only. 146 45 (Note 2) 45 (Note 2)

Note 2: Max lamp outline dimensions, take into consideration bulb/base misalignment•

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FIGURE 1 27 WATT, SINGLE-ENDED, QUAD TUBE C7B.2x-19xx Page 7
PREHEAT-START FLUORESCENT LAMP WITH INTERNAL MEANS OF STARTING Lamp Description Lamp Abbreviation•... .. •••••.• ••..•• •. 27W/7T5/Q/GX32/PH Nominal wattage..................... . . 27 Nominal Dimensions....... ...... .... ... OAL WIDTH QEPTH 171 rnm 40 rnm 40 rnm Bulb.

. . . . . . . . . . . .. . . . . . . . . .. . . . .. . . . . . See Figure One Base Type....................... . ..... GX32d-3 Base Dimensions: Base dimensions will subsequently be incorporated into standards being developed by American National Standards Committee on lamp bases and holders, CB1. Dimensional Characteristics Maximum Lamp Dim. (rnm) H Base Face to Top of Lamp... ..... 146 C Width of Lamp

.. ... . .... . .......• 41 (Note 1) G Depth of Lamp

..... . ..•.......... 41 (Note 1) Note 1: Applies to glass length only. Maximum Lam p outline Dim. (mm) 146 45 (Note 2) 45 (Note 2)

Note 2: Max lamp outline dimensions, take into consideration bulb/base misalignment.

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FIGU RE 1C78.2x-19xx Page 8 Electrical Characteristics Electrical Characteristics and Light Output vary with ambient temperature. Lamp Operating Characteristics Watts. . . . . . . . . . . . . . . . . . • • . • • . . . • . . . 27 Volts 54 

### Amperes............................ 0.625 The preceding lamp operating characteristics are based on base up operation in a preheat-start-type circuit in an ambient temperature of 25°C (77°F) with a 60 Hz sinusoidal power supply and a reference ballast having the characteristics shown in the following section: Reference Ballast Characteristics Rated Input voltage....•.........•. 118 Reference Current 0.625A Impedance 1540 The general requirements for reference ballasts are stated in American National Standard Specifications for fluorescent lamp ballast, ANSI C82.3-1983. Cathode Characteristics Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low resistance Note: Objective resistance of both cathodes in Series 25 OHMS maximum. Lamp Starting Requirements The following values are intended to provide reliable starting at the ambient temperatures indicated and at higher temperatures up to a maximum of 110°F (43°C). At temperatures near the top of that range, however, initial starting will be secured but not necessarily immediate restarting. Voltage Between Lamp Terminals At 32°F (O°C) and above, min. rms.••••••.••..••.• 108V max. pk 400V The voltage limits shall be met at any primary voltage between 90% and 110% of rated voltage. Electrical Characteristics C78.2X-19xX Page 8

Electrical Characteristics and Light output vary with ambient tem perature. L

amp O perating Characteristics Watts.

. . . . ..... .... •....• •.. • . .... . 27 Volts................

.. ...... ... . .. 54 Amperes.

. .. . . . . . . . . . . . . . ... .... .. .. 0.625 The preceding lamp operating characteristics are based on base up operation in a preheat-start-type circuit in an ambient temperature of 2S'C (77"F) with a 60 Hz sinusoidal power supply and a reference ballast having the characteristics shown in the following section: Reference Ballast Characteristics Rated Input Voltage

.............. .. Reference Current

.. ... ...... ..... . . Im pedance.......................... 118 O.625A 154n The general requirements for reference ballasts are stated in American National standard Specifications for fluorescent lamp ballast, ANSI C82

.3-1983. C

athode Characteristics Type.

... . . ........ ........ . . . . . . . . . Low resistance Note: Objective resistance of both cathodes in Series 2S OHMS maximum. Lamp starting Requirements The following values are intended to provide reliable starting at the ambient temperatures indicated and at higher temperatures up to a maximum of 110'F (43·C). At temperatures near the top of that range, however, initial starting will be secured but not necessarily immediate restarting

. Voltage Between Lamp Terminals At 32'F (O'C) and above, min. rms. ........ ....... 108V max. pk

.. .•. .. ....... . .. 400V The voltage limits shall be met at any primary voltage between 90% and 110% of rated voltage.C78.2x-19xx Page 9 Preheat Current Min. at 90% of rated primary voltage••.••.•.•••••• 0.540A Max. at 106% of rated primary voltage•.••••••••••• 1.080A
Radio Interference Suppression In order to assist in suppressing radio interference, starters shall contain a capacitor within the limits of .0008 to .010 microfarad connected internally in such a manner as to be effectively in parallel with the lamp. Ballast Design Note The values in this standard are based on 60 Hz operating characteristics. The RFI suppression capacitor may affect starting or operating parameters in high frequency ballasts. Application Design Note The temperature of the lamp base measured at the bottom of the guide post (Point X in FIG.1) shall not exceed 85°C (higher temperature under consideration). Note 1: This temperature shall be measured: A) with a lamp that is within 2.5% of the lamp operating characteristics. B) With a ballast operating at 106% of rated voltage. C) In the intended luminaire at the maximum operating temperature.
Note 2: A higher guide post temperature may be acceptable. Consult lamp manufacturer. Note 3: This temperature limit is necessitated by the internal radio interference suppression capacitor incorporated into the base. Preheat current C78.2x-19xx Page 9

Min. at 90% of rated primary voltage.•.•........•. O.S40A Max. at 106% of rated primary voltage..•....•...•. 1.080A
Radio Interference Suppression In order to assist in suppressing radio interference, starters shall contain a capacitor within the limits of .0008 to .010 microfarad connected internally in such a manner as to be effectively in parallel with the lamp. Ballast Design Note The values in this standard are based on 60 Hz operating characteristics. The RFI suppression capacitor may affect starting or operating parameters in high frequency ballasts. Application Design Note The temperature of the lamp base measured at the bottom of the guide post (Point X in FIG.I) shall not exceed 8S·C (higher temperature under consideration). Note 1: This temperature shall be measured: A) With a lamp that is within 2.S% of the lamp operating characteristics. B) With a ballast operating at 106% of rated voltage. C) In the intended luminaire at the maximum operating temperature.
Note 2: A higher guide post temperature may be acceptable. Consult lamp manufacturer. Note 3: This temperature**limi~** is necessitated by the internal radio interference suppression capacitor incorporated into the base.