A
ashlec
Hi All,
ive been working in a old 50's/60's property which has a black pvc/almost rubber water pipe incoming to the stopcock, then it leaves the sc in the same type of pipe
then disappears into a box section going upstairs under the floor . Now the other end could be anywhere but i can't find it, we all know it should be within 600mm & before the first branch etc
but in this case its not going to happen.
My question is there is a 6mm earth going from the MET to the cold ( everywhere else is copper pipe ) in the bathroom linked to the hot & all the 4mm sup bonding is in
position ( Allready there ) & a new 17th edition board is fitted, it is a TNS system so this should be exceptable according to reg 544.1.1 , do we agree ?
I quizzed the NIC tech about it, he was saying i needed to use the adiabatic equation to work it out to see if it is sufficient enough, i've done this for main earth before
where the earth is sweated on the incoming cable but never for a services bond any ideas ?
All help will be much appreciated
ive been working in a old 50's/60's property which has a black pvc/almost rubber water pipe incoming to the stopcock, then it leaves the sc in the same type of pipe
then disappears into a box section going upstairs under the floor . Now the other end could be anywhere but i can't find it, we all know it should be within 600mm & before the first branch etc
but in this case its not going to happen.
My question is there is a 6mm earth going from the MET to the cold ( everywhere else is copper pipe ) in the bathroom linked to the hot & all the 4mm sup bonding is in
position ( Allready there ) & a new 17th edition board is fitted, it is a TNS system so this should be exceptable according to reg 544.1.1 , do we agree ?
I quizzed the NIC tech about it, he was saying i needed to use the adiabatic equation to work it out to see if it is sufficient enough, i've done this for main earth before
where the earth is sweated on the incoming cable but never for a services bond any ideas ?
All help will be much appreciated