slartybartfast
DIY
- Reaction score
- 13
I can see that there is an argument for SPD on say, mains powered linked smoke alarms (and medical, alarms etc). But you are far more likely to have a power failure which renders smoke alarm system inoperable than you are a surge. So for the SPD requirement to make sense, a UPS needs to be mandated. Mission critical systems always have a UPS and just putting an SPD on is a waste. That of course will come in later iterations of the regs....but for now it ain't there !What about medical ? Emergency lighting, Alarms ?.