IMHO, every electrician installing, modifying, repairing or fault finding should have their own test equipment to ensure that their work is safe and compliant.
I disagree with companies that run the idea of testing teams, that go around after the installers have been around, to do the testing, after the installation has been energised.
That is the dead testing to prove the install is safe to energise is done, after the installation has been in use by the householder for at least overnight, if not longer before the testing teams turn up.
RCBO's.
I don't like the idea of SPSN RCBO's on TT, but, an all RCBO install on a TT is an excellent way of splitting up the installation such that the inconvenience in the event of a single fault does not trip the up-front TD RCD (if it's there) for example.
This is why SBS Dave's product is so good.
I couldn't remember the other night if it is a requirement of the regulations to disconnect all live conductors in the event of a fault on a TT which was different to a TN system.
I couldn't find one.
Yes, isolation of all live (or unearthed live) conductors, so on TN you can legitimately isolate only the Line, IF, the N is solidly earthed.
Allowing for there being no chance of any "back feeding" of the N from elsewhere.
That aside, on a TT as the N is not strictly referenced to the local earth, then this "has" to be isolated when isolation is required.
However, I could not find a reg that required disconnection of the N in the event of a fault on a TT.
So, can anyone come up with the reg no please?
I was convinced that it was there, but, I couldn't find it.
Please humour me as I don't have a regs book any more & I ain't buying one that's for sure, I've been conned out of enough money for the so called "online" regs!
I can't find the requirement for disconnection of N or all live conductors in the event of a fault on a TT system.
I would love to be able to, but, failed.