Adding a spur to an existing circuit on a BS3036 CU

[electro-lass]

location?

In Hull

 

[BES]

Before you do anything make sure thr circuit you are intending to add to is in good order. As well as the other tests any good electrician would do before considering any additions to the installation.

 

[ChrisElectrical88]

In Hull

There should be plenty knocking about we offer one out every July but your a bit far and normally the college gives us a list of names

 

[m top]

All minor works you do should comply with current regs 17th edition Only the work you do has to comply with current regs not the cuircuit you are connecting to, so the socket you are installing has to be rcd protected, your method of installation inline, rcd fused fcu,rcd socket has to be used to be compliant.
Testing do a insulation res test line neutral to earth,zs at socket you are extending from ,ring end to end test to prove you have a ring main to connect to and its not a spur,if all ok away you go happy days!!

 

[electro-lass]

There should be plenty knocking about we offer one out every July but your a bit far and normally the college gives us a list of names

There appear to be plenty knocking around for those in the age range, but for those who are older than 26, there don't seem to be as many opportunities that I've come across anyway

 

[electro-lass]

All minor works you do should comply with current regs 17th edition Only the work you do has to comply with current regs not the cuircuit you are connecting to, so the socket you are installing has to be rcd protected, your method of installation inline, rcd fused fcu,rcd socket has to be used to be compliant.
Testing do a insulation res test line neutral to earth,zs at socket you are extending from ,ring end to end test to prove you have a ring main to connect to and its not a spur,if all ok away you go happy days!!

Appreciate your detailed reply. I have already done continuity, IR and Zs at socket. Now just need to decide best method of installation

 

[telectrix]

and don't forget the 2 colours sticker on the CU, if there isn't 1 there already.

 

[Silly Sausage]

Appreciate your detailed reply. I have already done continuity, IR and Zs at socket.

Have you done your Figure 8/R1+R2 tests to prove it's a true ring/expose any spurs/interconnections etc.?
Reminder, R1+R2 will be virtually the same at every SO on a true ring.

 

[Deleted member 9648]

It appears that there is a difference of opinion as to the sense of adding a RCD FCU or one RCD socket to a non-RCD protected RFC as per a previous comment by wirepuller. Can one of the trusted long-term commenters please advise why some would say it is not a sensible way forward?

Got to learn somehow!

The regulations state that socket outlets intended for general use must be RCD protected. Where this enters into the realm of ridiculous is just the scenario you have. A 3036 board with no RCD protection to any of the circuits, and an electrician protects an isolated socket installed for a table lamp just to comply with the regulations.Despite lack of RCD protection and 3036 fuses as long as disconnection times are met and sockets are not reasonably likely to supply equipment outdoors,contrary to popular opinion the setup has been safe for decades and will be for many more. As already stated I would go with Tel's suggestion which will improve the safety of the entire circuit and be a worthwhile upgrade.
If that is not possible/customer declines cost I refuse to go down the farcical route of an RCD for one lounge socket and would just install it and label it "Not for general use".On the MW form I would state that the socket has been installed without RCD protection for a specific item of equipment.
Thats my take on it,many wont agree,nor am I suggesting it is technically the correct approach.

 

[Octopus]

The regulations state that socket outlets intended for general use must be RCD protected. Where this enters into the realm of ridiculous is just the scenario you have. A 3036 board with no RCD protection to any of the circuits, and an electrician protects an isolated socket installed for a table lamp just to comply with the regulations.Despite lack of RCD protection and 3036 fuses as long as disconnection times are met and sockets are not reasonably likely to supply equipment outdoors,contrary to popular opinion the setup has been safe for decades and will be for many more. As already stated I would go with Tel's suggestion which will improve the safety of the entire circuit and be a worthwhile upgrade.
If that is not possible/customer declines cost I refuse to go down the farcical route of an RCD for one lounge socket and would just install it and label it "Not for general use".On the MW form I would state that the socket has been installed without RCD protection for a specific item of equipment.
Thats my take on it,many wont agree,nor am I suggesting it is technically the correct approach.

Common sense I see. I agree and the muppets who write the regs need to go back and amend them so that the installer/homeowner can jointly agree what is practical