RCD Protection

[elec2012]

I have a job where by i am removing a ringmain and replacing it with a radial circuit with 2/3 sockets on. The CU is an old rewireable fuse type and the customer does not wish to have it upgraded, obviously i need to put the new circuit i am to install on a RCD but what is the easyest way of doing this feeding it from the origional CU? Put in a single MCB,RCD protected 'mini' CU in next to the board and feed it from the 32A rewireable fuse?

 

[Manator]

You need to keep it totally seperate from the old fuse board (CU).

Get a small garage enclosure and split the tails, if the customer is not willing to pay the extra walk away and let some cowboy do the job.

 

[elec2012]

yes i agree, obviosuly ideally it just wants upgrading but they have said no, whats the best way of splitting the tails? I havnt had a job yet where i have needed to do this....

---------- Post Auto-Merged at 20:45 ---------- Previous post was made at 20:41 ----------

sorry, think i have found the answer to my question, henley bock.... cheers

 

[Manator]

I use ratchet cutters, but some heavy duty side cutters can do it.

 

[Andy™]

I use ratchet cutters, but some heavy duty side cutters can do it.

oxy-propane torch could also work

make sure the windows & doors are open though!

 

[ProDave]

If you are going to split the tails to fit a new CU, you do know the correct procedure for isolating the supply don't you?

 

[betty swollocks]

The correct procedure and procedure used are usually different

 

[philbas]

I have a job where by i am removing a ringmain and replacing it with a radial circuit with 2/3 sockets on. The CU is an old rewireable fuse type and the customer does not wish to have it upgraded, obviously i need to put the new circuit i am to install on a RCD but what is the easyest way of doing this feeding it from the origional CU? Put in a single MCB,RCD protected 'mini' CU in next to the board and feed it from the 32A rewireable fuse?

Just a small point, but unless you intend to wire the radial in 4.0mm or larger it should not be on a 32A fuse of any type. ;

Edit just reread the op, the connection to the mini cu would need to be in 4.0mm, the mcb in the mini cu would need to be 20A

 

[springcrocus]

One of these and one of these

Bring a cable from the original fuse/breaker into this, then out to your new circuit. Downrate the fuse/breaker as appropriate.

 

[Doc Hudson]

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