Hi there!
From my last posting regarding,...63Apms connectors...
At the power source I have a MCB and at the other end I should have some RCD's, question:
I don’t have any 20Amps & 10Amps RCD but only MBN from Hager for the shed CU will this do the job or I have to invest in RCD?
On the RCD, MCB, MBN there are some indications that I am not sure about like: 6000-3 or 3000-3 or 4500-3 is the first number the tripping time of the device in seconds and the 2nd number is it type? If the second is it type, then I am a bit confused, I thought that in domestic system we only use type 1 or B of RCD, MCB, MBN.
Also in a CU do you have to use all the RCD, MCB, MBN of the same type/indications (e.g. only 6000-3 or you can have some 3000-3 with 6000-3 and 4500-3) regardless of the devices’ nominal current which will have to be selected with other considerations?
A single socket that I am going to have designated only for some LV decking lights, output from the plug/transformer less than 1Amps, can I feed this socket from a 10Amps RCB for lights in the shed? So that I could use a 1.5mm2 cable if not I will have to use a 2.5mm cable feed from a 20Amps RCD.
Also these lights are supplied with a plug/transformer; the transformer will be in the shed with its designated socket, can I make this socket “switch able”? From inside the house so that I won’t have to go in the shed to plug/unplug. I know how to do it but I just want to know if for an electrician this is something which is acceptable to do.
Is there any web site where you could check the on-site guide BS7671 online, I don’t want to buy the all book?
thanks for any comments
From my last posting regarding,...63Apms connectors...
At the power source I have a MCB and at the other end I should have some RCD's, question:
I don’t have any 20Amps & 10Amps RCD but only MBN from Hager for the shed CU will this do the job or I have to invest in RCD?
On the RCD, MCB, MBN there are some indications that I am not sure about like: 6000-3 or 3000-3 or 4500-3 is the first number the tripping time of the device in seconds and the 2nd number is it type? If the second is it type, then I am a bit confused, I thought that in domestic system we only use type 1 or B of RCD, MCB, MBN.
Also in a CU do you have to use all the RCD, MCB, MBN of the same type/indications (e.g. only 6000-3 or you can have some 3000-3 with 6000-3 and 4500-3) regardless of the devices’ nominal current which will have to be selected with other considerations?
A single socket that I am going to have designated only for some LV decking lights, output from the plug/transformer less than 1Amps, can I feed this socket from a 10Amps RCB for lights in the shed? So that I could use a 1.5mm2 cable if not I will have to use a 2.5mm cable feed from a 20Amps RCD.
Also these lights are supplied with a plug/transformer; the transformer will be in the shed with its designated socket, can I make this socket “switch able”? From inside the house so that I won’t have to go in the shed to plug/unplug. I know how to do it but I just want to know if for an electrician this is something which is acceptable to do.
Is there any web site where you could check the on-site guide BS7671 online, I don’t want to buy the all book?
thanks for any comments