Davis Wholesale News
Davis Wholesale Resources

Looking for a concise list of changes to the NEC? Click here for T&B 2002 Analysis of Code Changes

Electrical Formulas (Click to expand)
Standard Units
Kilo Volt Amperes
KiloWatts (1000 watts = 1 kW)
Ampere (Volt-Amperes or Current)
Volts
Power Factor
Percent Efficiency
Horse Power

TO DETERMINE:

SINGLE-PHASE

KVA

I x E
1000

Kilowatts

I x E x PF
1000

Horsepower

I x E x %EFF x PF
746

Amperes (when HP is known)

    HP x 746    
E x %EFF x PF

Amperes (when kW is known)

KW x 1000
E x PF

Amperes (when KVA is known)
KVA x 1000
E

Power in Watts

P=I x E

Voltage 
E=I x R
Amperage
I= E/R
Resistance
R=E/I
KVA to KW
(Power factors are generally .80-.90%)
KVA x PF=KW

2005 NEC Mistakes
Panel Schedule
E-Feeder Calculator- Determine what size conduit you need easily!
Transformer Specs

California Electrician Certification Updates

More information on the State of California Electrician licensing program

Is your name on the list ? Are you a licensed electrician?

 

Other NAED sites that NAED encourages members to link to include:

Main NAED site: http://www.naed.org
TED Magazine: http://www.tedmag.com/
Technology Informer: http://www.naedtechnologyinformer.com/

 

Need to pull a permit?

Electrical permit in the City of Los Angeles
Information on Building & Safety permits for: City of Beverly Hills.
Information on Building & Safety permits for: City of Glendale.
Information on Building & Safety permits for: City of Burbank.
Download Electrical permit application for County (unincorporated) areas

 

Questions about Electrical Service requirements?

Request new electrical service for DWP
Electrical service information DWP
Electrical service information SCE
Download Service drop details / service change out requirements (LA County)
Download General plan notes (LA County)

 

Davis Wholesale Downloadable Forms

Davis Wholesale Electric Credit Application
Project Information Sheet.
Resale certificate (exemption from sales tax form) 

 

Title 24
Energy conservation is critical in California
In a far-reaching initiative to decrease consumption, the California Energy Commission has adopted new Title 24 guidelines that significantly impact lighting in new residential homes and renovations. – Title 24 information

 

New Hazardous Waste rules regarding Fluorescent Lamps

Sunset of Temporary Universal Waste Exemptions
Managing Hazardous Waste

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