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Wire sizes when adding RCD to consumer unit

Discuss Wire sizes when adding RCD to consumer unit in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

T

TeeJay711

Hi,

I am splitting the consumer unit to add 2off 63A RCD's.
What is the L+N cable size from the main 100A isolator to each RCD?

Tony
 
depends on the load that the RCDs are feeding. 10mm or 16mm at a guess. think you'll need henleys.
 
The board is in a 3 bed semi, single phase.
The usual
up lights
down lights
cooker
boiler
garage
alarm
kitchen

Why henleys, the RCD's just go on the buss bar!

Tony
 
ah, your OP wasn't clear. you didn't say you were fitting RCds inside the CU. the tails in a CU are generally 16mm tri-rated cable.
 
10 posts and your splitting a consumer unit plus you are asking a question that you should know the answer for so can I ask what skill level if any you are at ?

Wonder if we will get a reply
 
I saw one the other week where they had used the earth bar as the second neutral bar. The CPCs were joined in connector blocks. Was great.
 
He's happy ,got an answer and off he goes with no idea of the reasoning behind it or the knowledge level of the person who answered it (no offence). It does make you wonder.
 
telectrix said:
you'll need the flexibility of tri-rated cable. crimps on the ends as well.
Click to expand...

I needed to butcher a couple of ready made cables recently, but didn't crimp them... What sort of crimps should I be using Telectrix?

Alternatively, can I get the soldering iron out and tin the ends?
 
DNS1 said:
I needed to butcher a couple of ready made cables recently, but didn't crimp them... What sort of crimps should I be using Telectrix?

Alternatively, can I get the soldering iron out and tin the ends?
Click to expand...


bootlace crimp.

[ElectriciansForums.net] Wire sizes when adding RCD to consumer unit
 
Ah ha... They don't appear to be in my local wholesalers catalogue... I'll find em online! Cheers!
 
"How much!!! - for the crimping tool" .... got a feeling he wont have one ....as been said already its cheaper to buy a split board all in than waste time and money converting an existing board.
 
Pehaps but a better job would be achieved by this:

[ElectriciansForums.net] Wire sizes when adding RCD to consumer unit
 

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