Basic lighting design resources
Basic lighting design resources
(OP)
I've been out of lighting design for some years. I am looking for recommended resources to help refresh my memory regarding basic lighting design. In particular, where can I find the amperage of different fixtures and the "standard" amp value for receptacles so I can size my breakers and wires etc... I am lighting commercial buildings with 120 incandescent and 277 fluorescent. I threw away my "Electrical Design Guide" about 10 years ago
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RE: Basic lighting design resources
1.Check the library or used book stores for publications to replace your lost one you might even get lucky and find a copy of your old one.
Remember ,specifications and standards do change.
2.Most receptacles are marked by the manufacture as to the rateings.
3.Check the fixture supply house as to the Rateing,specs. etc. for the paticular fixture your'e interested in.Get a copy of the Product literature.
4. Once a year they have a "LightFair" which brings together most of the Manufactures in the industry.This year's will be in San Francisco, Mascone Covention Center
June 3-5 404 220 2221
5. Go to www.lighting.com ,www.nema.org/ or other websites to check out. Good Luck
RE: Basic lighting design resources
For Fluorescent luminaires & any fittings with contol gear i.e chokes capacitors ignigtors etc try "as a rule of thumb method" (lamp wattage x 1.8) divided by the circuit voltage
My source of information is BS7671 - On-site guide appendix 1 page 84 Maximum Demand & Diversity Table 1A Note 2
However most maunfactures will provide technical data sheets on their products which will give you accurate information
RE: Basic lighting design resources
RE: Basic lighting design resources
1 lamp - 32 watts
2 lamp - 65 watts
3 lamp - 95 watts
4 lamp - 125 watts
These are a bit on the high side but good numbers to use. If you use any other lamp and/or ballast combination then the number will change.