Discrimination

[Download Virus]

First post - Go easy!

Advice please - suggestions/best practice.

Domestic property, TNCS supply, 25mm tails to RCBO C/U with 100A main switch.

I want to install a distribution circuit from the aforementioned C/U (I dont want to split tails) to supply a second RCBO C/U (essentially a garage board), serving little more than a lighting and power circuit.

The cable supplying the second board is 10mm T&E and already buried within the fabric of the building and will be used (non negotiable).

with discrimination in mind, what device should I be terminating the 10mm distribution cable, within the second board?

I am using Fusebox boards and the smallest main switch I can see is 63A. This is too big for the 10mm supply cable???

Any advice warmly recieved.

 Thanks

 

[westward10]

We use the term selectivity now.

 

[littlespark]

How did that user name get past the software filters?
If you’re trainee, as profile says, then @Dan can badge you as such


The 10mm cable is protected at the house end by a suitable sized rcbo….

The mainswitch at the garage is just a switch…. Not an overcurrent protection device.

 

[Dan]

How did that user name get past the software filters

Its actually not a blocked name lol I've seen something similar before too. No human trying to get you download a virus would dare to use that name so it's assumed legit.

Apply to Gain Access to Trainee-Only Forum by ElectriciansForums.net - https://www.electriciansforums.net/forums/apply-to-gain-access-to-trainee-only-forum.60/ - apply to access trainee area and wear a trainee badge.