What tests do you do before CU upgrade?

[eskimo39]

Before upgrading a customers old rewirable CU to a modern RCD board, what tests do you do to minimise tripping problems with the new board?

 

[Guest123]

A Ze, ring final continuity and a blanket IR....L&N-E.

Also a visual on some accessories particularly hallway and landing switches to check for shared neutrals, earthing and bonding etc. Depending on the results of the "snapshot" of the install, advise the customer accordingly.

 

[Noddy67]

Good stuff - I asked the same question on the forum on Friday and got a couple of nuggets from Widdler (sounds obscene).

http://www.electriciansforums.net/e...18899-pre-tests-consumer-unit.html#post137752

Hope you get a few more too.

 

[Graeme Harrold]

I normally test the neutrals too, but nice tip on the plug-in RCD for potential appliance problems

 

[davelerave]

A Ze, ring final continuity and a blanket IR....L&N-E.

Also a visual on some accessories particularly hallway and landing switches to check for shared neutrals, earthing and bonding etc. Depending on the results of the "snapshot" of the install, advise the customer accordingly.

just wondering
the blanket IR test - that's L&N(linked)- E?

is this the safest way to IR with appliances in circuit -for a quick 'snaphot'

 

[Guest123]

Yep, @250V.

 

[davelerave]

thanks