I can't seem to find (NEC) reference for a 120v hard-wired smok/co detectors REQUIRING battery back-up.
The question(s) are:
- Is battery back-up required in a hardwired smoke system in a SFH?
- Is battery back-up required for a hardwired smoke system in a multifamily dwelling (MFD)in each dwelling unit?
- Is battery back-up required in a hardwired smoke system in the common areas of a MFD?
I don't recall ever putting in a BRK/Firex head that didn't have a battery back-up.
I understand this may be a local code, also.
The question(s) are:
- Is battery back-up required in a hardwired smoke system in a SFH?
- Is battery back-up required for a hardwired smoke system in a multifamily dwelling (MFD)in each dwelling unit?
- Is battery back-up required in a hardwired smoke system in the common areas of a MFD?
I don't recall ever putting in a BRK/Firex head that didn't have a battery back-up.
I understand this may be a local code, also.