Basic rules for residential wiring...
Smoke Detectors - Code Summary
- For new work there must be a 120-volt battery back up smoke detector on the ceiling, or on the wall close to the ceiling in the area outside of every bedroom, and inside of each bedroom. All smoke detectors must be tied together so that if one goes off they all do. Smoke detectors must be protected by an arc fault breaker.
When you are roughing in for smoke detectors daisy-chain them with 14-3 WG and the extra (red) wire will interconnect the system. - Note that all bedrooms outlets must be protected by an arc-fault circuit interrupter listed to provide protection of the entire branch circuit. This includes wiring to the smoke detector outlets.210.12, NEC
Remodel - battery operated individual units ok. Consider interlinking wifi smokies for better coverage.
Required Ground Fault Protection
A ground fault circuit interrupter must protect ALL receptacles listed below:
- Bathroom receptacles.
- Outdoor receptacles.
- Garage receptacles.
- Kitchen receptacles that serve counter top surfaces
- Counter top receptacles within 6 feet of a wet bar sink.
- All receptacles in an unfinished basement:
- Sump pumps.
- Crawl spaces at or below grade.
- Spas, Hydro massage, Hot tubs and associated electrical components.
- Pretty much any location where water and electricity might mix.
Required Arc Fault Protection
basically any indoor circuit that doesn't have GFCI protection will need to be AFCI protected.
