進階搜尋

Electrical code related technical topics

UL certification programs, services and technical information on products regulated by the NEC^® help electrical officials and other electrical professionals achieve safe, code compliant installations. These topics are organized by the same chapter structure consistent with those in the NEC.

Chapter 1: General

Flood damaged electrical equipment
Product guide to inspections
Rebuilt equipment
UL's Marks -- what they look like and what they mean

Chapter 2: Wiring and protection

AFCIs
Circuit Breakers Marking Guide
Overcurrent protection, supplementary

Chapter 3: Wiring methods and materials

Conduit hubs and service equipment  
NM cable interconnectors
Outlet boxes for use in fire rated assemblies
Plenums, products used in
Wire and cable marking considerations

Chapter 4: Equipment for general use

Dead-front switchboard marking guide
Heating and cooling equipment making guide
LED signs and luminaires
Luminaires marking guide
Luminaire - rewiring, retrofits, and conversions
CFL (compact fluorescent lamp) applications
Motor listing program
Panelboard marking guide
Panelboard short circuit ratings
Switchboard short circuit ratings

Chapter 5: Sepcial occupancies

Dispenser retrofitting
Relocatable power taps, use in health care facilities
Receptacles, hospital grade

Chapter 6: Special equipment

Alternative energy application guide
Elevator certifications
Electric vehicle charging
Fire pump controller applications
LED signs and luminaires
Photovoltaic modules and panels
Swimming pool and spa equipment marking guide
Wind turbines

Chapter 7: Special conditions

Optical fiber cable

Chapter 8: Communications systems