Advice Please.
I run a residential mobile home park. The main swa cable from the meter box runs via an old-style fused wylex isolator switch to the consumer unit in the mobile home. As the old fused isolator enclosure is plastic (bakelite?) with no means of terminating with a swa gland I have been told by the Electrician doing the EICR's that these must be replaced with a metal enclosure fused isolator switch. I have another electrician replacing these but as some also supply electrics in the shed where the meter box is, we have been replacing them with what we thought were appropriate shower or shed consumer units. However, in some instances where there are no shed electrics, we have replaced the RCD in the consumer unit with a main switch from a different manufacturer and in other instances we have replaced MCB's with a different manufacturer to obtain the correct rating for its use. All MCB's/Switches are the same dimensions and line up on the buzz bar correctly. The EICR inspector has told us we can't mix MCB's or main switches. Is this correct or would this just be a C3 recommendation? Is it ok to use another manufacturer’s MCB's/Switches if they are all from the same manufacturer but the enclosure is from another manufacturer?
