What would you do?

[polo1]

Just had an interesting "discussion" with a fellow spark. Job was/is to replace a single lighting pendant in a first floor bathroom (loft above) with five IPX5 downlighters. Cables clipped to top side of 50mm roof trusses. Board only has RCD covering three ring mains and no spare way on this side of the board. Switch drop is between two sheets of plasterboard with a two inch gap and is not being modified.

RCBO or not for the amended lighting circuit?????

Regards

 

[Guitarist]

no offence taken, osg states the need for all circuits to be rcd protected, not sure of reg number of the top of my head or even if there is one

I'm sure I gave 1 ages ago...

 

[Deleted member 26818]

701.411.3.3: "Additional protection shall be provided for all low voltage circuits of the location, by the use of one or more RCDs having the characteristics specified in Regulation 415.1.1."
I don't really see that the Regulation is ambiguous, or can be interpreted other than as a requirement to provide RCD protection.
As the work proposed involves an alteration to the fixed wiring to a circuit of a location containing a bath or shower, in order for the alteration to comply, the whole circuit must be provided with RCD protection. Not just a part of the circuit by means of an RCD FCU.

 

[Paul.M]

Great debate and a few people shooting me down in flames (which I deserved).

The alternative for installing an rcd which I thought of from the start and no one has mentioned yet:-

From the original hard wired circuit, install a transformer able to supply all 5 lights and spider off to each. Selv has then been provided out of zones in the loft and no rcd is needed.

But of course we all would install a rcd because we all know its the safest way. Just liked the debate, that's all gents.

Can I take my tin hat off now?

 

[Guitarist]

Paul, I think we all knew that you were playing "Devil's advocate" here and thanks for keeping it going. :6:

 

[nickblake]

I must admit there is quite a number of sparks think that if you do a minor works on an installation It can be to the same regs as when it was installed , no regulations change and the changes have to be brought in to existing installation and new so minor works to current regulations special locations also have to be notified , so this installation although minor would have to be done to current regulation so requiring an RCD

 

[Octopus]

I must admit there is quite a number of sparks think that if you do a minor works on an installation It can be to the same regs as when it was installed , no regulations change and the changes have to be brought in to existing installation and new so minor works to current regulations special locations also have to be notified , so this installation although minor would have to be done to current regulation so requiring an RCD

Nice, so does this mean I can do CU installs on a MWC and not bother about bonding etc?? lol

 

[morph]

Paul m
You won't get anyone state the reg as there isn't one
The word interpretation is magical that's why them people who wrote the regs use it

there is this one
701.411.3.3

oh see it has been mentioned already doh

 

[sedgy34]

Cease fire!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:61::61::60::60: