Ive had a shufty through GN3, and my BGB and on site guide and cant find the answer to my current little dilemma.....
The set up is this - TNCS system, standard DNo cut-out, and then the tails from the cut out go straight to Henley blocks and split 3 ways, one to a Wylex rewireable board which is the daytime board, one to another rewireable board via a night meter, and then there is also a third enclosure added later on for a shower.(Via suitable meters and clocks)so only the shower is RCD protected at present.
My job is firstly change the RCD in the third board for a 30mA one ( 100mA at the mo) and then re-route the socket circuit to run from that board. (theres room, and the customer as usual wants to pay as little as possible)
so far so good.
Its the certificate that's got me confused. I was taught that the definition of Main Switch is a switch that will turn off the whole installation. Neither of the 'main switches' in the boards will do that, so on my certificate, where it asks for details of the main Switch, can/should I put the DNOs fuse details?
If not, how do I do this? 3 separate Certs? None of the boards are sub boards as they're all fed independently. Maybe list the 3 different versions of main switch that I have? Though Im sure I was taught that you only detail one Main Switch ....
Ill bet Im missing summat really simple here.....please excuse if so, its been a loooooooong weeeeeeekkkk
The set up is this - TNCS system, standard DNo cut-out, and then the tails from the cut out go straight to Henley blocks and split 3 ways, one to a Wylex rewireable board which is the daytime board, one to another rewireable board via a night meter, and then there is also a third enclosure added later on for a shower.(Via suitable meters and clocks)so only the shower is RCD protected at present.
My job is firstly change the RCD in the third board for a 30mA one ( 100mA at the mo) and then re-route the socket circuit to run from that board. (theres room, and the customer as usual wants to pay as little as possible)
so far so good.
Its the certificate that's got me confused. I was taught that the definition of Main Switch is a switch that will turn off the whole installation. Neither of the 'main switches' in the boards will do that, so on my certificate, where it asks for details of the main Switch, can/should I put the DNOs fuse details?
If not, how do I do this? 3 separate Certs? None of the boards are sub boards as they're all fed independently. Maybe list the 3 different versions of main switch that I have? Though Im sure I was taught that you only detail one Main Switch ....
Ill bet Im missing summat really simple here.....please excuse if so, its been a loooooooong weeeeeeekkkk