Distribution Circuit

[Kingston555]

Hi all, I want to feed a small 2-way distribution board from a spare way in the main consumer unit.
The new 2-way board will have either two B6 MCBs for separate lighting circuits, or there'll be one lighting circuit and a separate socket circuit. What sized breaker do I need to use in the spare way in the main consumer unit and what csa for the feed cable from the main consumer unit to the 2-way board. The 2-way board has a 63 Amp double pole main switch. Thanks!

 

[Octopus]

Have you calculated the load for your new circuits? Called your schemes help line? Checked what the customer wants/expects?

 

[Risteard]

If you are enquiring as to what rating of device will provide Selectivity (discrimination), the simple answer is no two BS EN 60898 circuit breakers will discriminate with each other under fault conditions.

 

[HandySparks]

Why are you adding another board?

If it's just lighting, can you put it all on one circuit? If power and lighting, can you run a power circuit with a fused connection unit for the lights?

 

[Simonslimline]

Hi all, I want to feed a small 2-way distribution board from a spare way in the main consumer unit.
The new 2-way board will have either two B6 MCBs for separate lighting circuits, or there'll be one lighting circuit and a separate socket circuit. What sized breaker do I need to use in the spare way in the main consumer unit and what csa for the feed cable from the main consumer unit to the 2-way board. The 2-way board has a 63 Amp double pole main switch. Thanks!

Where is the new DB going to be sited? How far away?

Whats the Ib?


You need to provide more info to be honest. This is pretty standard stuff.

 

[Pete999]

Good job I checked your profile mate I was about to go into print with some abuse, but you're a Trainee so all is forgiven, just take note of the advice already given it's sound advice from knowledgeable people.

 

[Kingston555]

Thanks for all the replies.

 

[HandySparks]

Thanks for all the replies.

Any chance of a reply to some of the questions? It makes for a more interesting thread if there's a bit of a discussion.

 

[Martin Kerr]

Any chance of a reply to some of the questions? It makes for a more interesting thread if there's a bit of a discussion.

I think he is still in hiding ,waiting for Pete to go off on one