Well, I'll kick off the debate on SPDs. Once again, the emphasis seems to be on domestic (we all, or virtually all of us live in a home of one sort or another) so are the proposals an improvement or not?
I think the focus on domestic, along with Part pee and the somewhat excessive (IMO) RCD requirements are a bit of a backlash because of the historically VERY lackadaisical attitude to domestic wiring. EAW and factories act have covered businesses for decades (although I could tell some stories about takeaways and weird stuff... shower run on 1.5 T&E? seen it.)
But I do think the SPD requirements are an improvement for domestic. The DNO's networks are falling apart due to lack of investment. One has declared any supply may become PME ... which means 'our cables rotted'. An open PEN WILL cause damage... however, a loose connection could cause short term transients of the type an SPD can deal with... plus many dozens of customers reporting SPD's failing in an area might clue the DNO into the issue.
There's a problem inasmuch that the public don't generally communicate with the DNO, but with their 'energy supplier' (silly term), but it might save a few people's bacon. And SPD's are no longer as expensive as they were in late 2018 when I sat my 18th edition course. Hopefully AFDDs will go the same way pricewise. but that's a separate thread.
Sorry if I sound bitchy about DNO's... it's NOT aimed at their employees, but at the political and corporate machinations that have led to the situation :(
I think the focus on domestic, along with Part pee and the somewhat excessive (IMO) RCD requirements are a bit of a backlash because of the historically VERY lackadaisical attitude to domestic wiring. EAW and factories act have covered businesses for decades (although I could tell some stories about takeaways and weird stuff... shower run on 1.5 T&E? seen it.)
But I do think the SPD requirements are an improvement for domestic. The DNO's networks are falling apart due to lack of investment. One has declared any supply may become PME ... which means 'our cables rotted'. An open PEN WILL cause damage... however, a loose connection could cause short term transients of the type an SPD can deal with... plus many dozens of customers reporting SPD's failing in an area might clue the DNO into the issue.
There's a problem inasmuch that the public don't generally communicate with the DNO, but with their 'energy supplier' (silly term), but it might save a few people's bacon. And SPD's are no longer as expensive as they were in late 2018 when I sat my 18th edition course. Hopefully AFDDs will go the same way pricewise. but that's a separate thread.
Sorry if I sound bitchy about DNO's... it's NOT aimed at their employees, but at the political and corporate machinations that have led to the situation :(
