Compliance and Safety Guide

The safety standard for power distribution is UL1640. Make sure you’re compliant and your equipment meets the following standards and avoid these pitfalls:

Class A-rated GFCI protection (trip level between 4-6 mA) on all 15 and 20 amp 125 Volt circuits
Branch-level circuit protection
Open neutral and reverse phasing
240 volt shut-off circuitry
NEMA 3R outdoor-rated construction
Structural integrity with no risk of collapse, fire or conductivity

GFCI Modules and Circuit Breakers Protecting Multiple Circuits - This invites overload on those components
GFCI Receptacles - They do not provide the required 240 volts shut off circuitry
Power Distribution Mounted on Wood - This does not meet the requirements for structural integrity (fireproof, weather protection and collapse proof)

Puts power closer to the work area
Protects tools against under-current burnout
Allows quick set-up and removal
Reduces the cost of labor and materials
Reduces extension cord clutter on the job site
Helps reduce liability because all equipment downstream of the power source is code compliant, agency listed and safe
Protects against line-side power deficiencies
Protects circuits against over-voltage damage