Have you ever been in a building when the lights suddenly go out? Our modern building codes and standards ensure we are never left in complete darkness for more than a few seconds. For this, we can thank the National Electric Code’s (NEC) two sections—700.12 and 700.17.

In this guide, we answer questions, provide guidance, and address several topics such as:

  • Discrete battery pack units or ‘bugeye’ fixtures
  • Luminaires with integral battery packs
  • When you might need ALCR
  • Function and use cases for BCELTS
  • Central inverter systems
  • Generators and code requirements