Sharing our Guidance

Lighting Circuiting and Design

By: Hilmi Tannous

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Lighting Circuiting and Design

• Always have a complete Luminaire schedule on plans• Include the Fixture Lamps• Include the Total Fixture Wattage• Include a detailed Fixture description• Include a complete Catalog number• Include the Fixture Voltage

Lighting Circuiting

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Lighting Circuiting and Design

• Always add the details from the previous slide to a client provided

Luminaire schedule, like the Casual Male, F21 or JCP projects

• Our Master Luminaire schedule is located in:

T:\Engineering\Details and Schedules - Autocad\Div 26 - Electrical\

260000 - ELECTRICAL DRAWING ELEMENTS

Lighting Circuiting (cont.)

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Lighting Circuiting and Design

• When circuiting lighting plans

always print the lighting plans

and redline the design

DO NOT CIRCUIT ON SCREEN!

• Count all light fixtures and use

different color highlighters

• Keep all lights on the same

circuits, adjacent to each other

Lighting Circuiting (cont.)

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Lighting Circuiting and Design

• For T8 & T5 Fluorescent Lamps use the total Lamp Wattage

• i.e. If you have (2) 32W T8 lamps use 64W

• Fluorescent Ballast factor can vary from .76 to 1.18

• BALLASTS SHALL BE INSTANT START, ELECTRONIC TYPE, CLASS P, "A"

SOUND RATING AND MAXIMUM HARMONIC CONTENT OF 10%

• DIMMING BALLASTS SHALL BE 3-WIRE TYPE, WITH DIMMING

CAPABILITY TO 10% OF RATED FULL OUTPUT

• ALL FIXTURE / BALLAST / LAMP COMBINATIONS SHALL BE ENERGY

SAVING TYPE

New Wattage Standards

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Lighting Circuiting and Design

• GE 3 Lamp Ballast type 23673-GE-332 with 3 lamps the total fixture

wattage is 85W. 11W less

• Same Ballast with 2 lamps is 65W. 1W more

• GE 4 Lamp Ballast type 23675-GE-432 with 3 lamps the total fixture

wattage is 113W. 15W less

• Same Ballast with 3 lamps is 97W. 1W more

• Two level switching fixture with (2) ballasts [ 2-lamps and 1-lamp] total

wattage is 61+36= 97W

• To be safe use the total Lamp Wattage

New Wattage Standards (cont.)

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Lighting Circuiting and Design

• For CFL use the fixture wattage +4W. I.e. fixture with (2) 16W use

18+18+4= 40W

• Except the 42W CFL add 5W

• GE CFL13W 1 lamp fixture with 87533-GE1CFL13PH total system

wattage is 16W

• GE CFL42W 1 lamp fixture with 87573-GE1CFL42PH total system

wattage is 47W

New Wattage Standards (cont.)

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Lighting Circuiting and Design

• For HID & HPS lamps:

• 39W use 44W

• 70W use 78W

• 400W use 470W

• 575W use 635W

• 750W use 840W

• 1000W 1130W

New Wattage Standards (cont.)

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Lighting Circuiting and Design

• For traditional incandescent Lamps like types A, use the Wattage of the

Lamp

• For low voltage MR16 lamps add 10% for ballast factors

New Wattage Standards (cont.)

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Lighting Circuiting and Design

• For LED fixtures:

• If the driver is built-in, the total fixture wattage is what the

manufacturer advertised, per IEC and DOE standard

• For remote driver fixtures and fixtures where the EC has to provide a

step down 24V transformer, add the LED wattage and driver

efficiency

New Wattage Standards (cont.)

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Lighting Circuiting and DesignCONCLUSION . . .

THANK YOU.