rcd or not to rcd, that is the question

[Mad Spark]

Just a very quick one,
New Cooker Circuit, rcd or not,
Alteration to Cooker Circuit, rcd or not
Please quote regulation.
Thanks

 

[topquark]

Would require RCD in both cases if cable depth in wall is <50mm (assuming it's not appropriately mechanically protected).

 

[PC Electrics]

With the lack of information given it is impossible to reach any kind of informed conclusion.

As a spark, surely you know the reasons why an RCD might be required just as well as the rest of us??

 

[Mad Spark]

HI TQ thanks for the reply, I would like to point out before continuing that I always make a point of protecting them, however I have recently been to installs where they are not protected and Ive been trying to find out weather this is a requirement or not. And having my head in the bgb and brb for a while, I keep coming back to regulation 411.3.3 which talks about sockets, however as you know not all cooker circuits consist of a socket. so please can someone give me a difinitave reply with the correect regulation as I am greatly interested in the response.
Thanks

 

[spark 68]

I keep coming back to regulation 411.3.3 which talks about sockets, however as you know not all cooker circuits consist of a socket. so please can someone give me a difinitave reply with the correect regulation as I am greatly interested in the response.
Thanks

see reg. 522.6.6 and 522.6.7

 

[Mad Spark]

reg.552.6.7

bgb or brb,
that reg doesnt exist

 

[spark 68]

A typo on my part.

see reg. 522.6.6 and 522.6.7

I edited the above post

 

[Mad Spark]

thanks spark 68, this makes it clearer why they havent been protected. btw FYI bgb refrence for the same regulation is 522.6.101, 522.6.102

A typo on my part.



I edited the above post

 

[spark 68]

Sorry I should have made it clearer,

the reference was taken from the BRB

Not many cables in a domestic setting are suitably mechanically protected, and even fewer at a depth greater than 50mm, so to all intents and purposes require 30mA RCD protection since the 17th Ed.

Edit: I do have the BGB, but have not finished looking through it all yet.

 

[Mad Spark]

[/QUOTE]Not many cables in a domestic setting are suitably mechanically protected, and even fewer at a depth greater than 50mm, so to all intents and purposes require 30mA RCD protection since the 17th Ed.[/QUOTE]

Yea and thats what was blowing my mind, however some people just want to do the minimum to satisfy regulations, I havew been going to carry out some PIRs for this one letting agent in particular, and majority of properties are getting the same problem, currently I'm putting a code 3 against them all, it seems like the same 'electrician' has been doing installs for these guys. When Ive asked for previous records all i get are periodics, yet most of the cooker circuits are not more than 3 years old, all new colours, even new split board cu's etc.
Thats the reason I decided to look through regs, and also post here. To see if there was a definitive regulation, as it is I will continue with code 3's and come new year c3 should suffice.
Thanks for all your help.

 

[spark 68]

Hi, possibly the old Code 4 or Code 2, depending on what you as the inspector decides, or as you say the new C3.

 

[oldAL]

would agree, either old code 4 or new C3,
dunno where you would feel the need for an old code 3 at.

 

[Mad Spark]

I agree about c3, the reason why I have been giving them code 3s is because unless u open up the wall and check you are unable to find out if they are i) more than 50mm deep, ii) mechanically protected, etc.... therefore requiring further investigation.

I didnt think it to be as serious as a code 2, but you may be right in some circumstances.

once again thanks man, I'm glad you decided to help, otherwise I would still be flicking through the pages of the holy book.