Thanks all. I was just checking to see if anything had changed after the long discussions about this subject in the past. I intend to place a 100mA S type R.C.D. before a new metal cased consumer unit on a TT earthed installation.
Z.
Could the S type not go in the CU as per section 2.2.6 of the OSG?
F
I like the idea of an R.C.D. before the metal consumer unit in a TT system, because if a fault occurs inside the consumer unit, (however unlikely) say a short from L tail to metal case, the whole enclosure could become live along with the metal cased appliances within the installation and all bonded metalwork as well. The R.C.D. before the consumer unit will prevent this happening.
Z.
I prefer it too but it was frowned upon by the niceic so I was towing the line and going with OSG, but think I'll go back to the insulated enclosure.
Thanks all. I was just checking to see if anything had changed after the long discussions about this subject in the past. I intend to place a 100mA S type R.C.D. before a new metal cased consumer unit on a TT earthed installation.
Z.
Could the S type not go in the CU as per section 2.2.6 of the OSG?
F
I like the idea of an R.C.D. before the metal consumer unit in a TT system, because if a fault occurs inside the consumer unit, (however unlikely) say a short from L tail to metal case, the whole enclosure could become live along with the metal cased appliances within the installation and all bonded metalwork as well. The R.C.D. before the consumer unit will prevent this happening.
Z.
I prefer it too but it was frowned upon by the niceic so I was towing the line and going with OSG, but think I'll go back to the insulated enclosure.
