spot the problem? sparks

[spanky]

Hi

thanks for replies

external meter box tails in cavity - 1 way con unit fed garage - no earth in t+e feeding wee cu earth form big cu earth form rcd into wee cu

as you can see no over current protection apart from service fuse.

I assume that the installer saw 40a on rcd and assumed this device provided OC SC or probably ignorant of function of rcd

seen this a few times - replaced all with new consumer unit btw

re" hot wiring" from top of isolator ( very common) not condoning this as its rough- contacts not designed for this- but is there any reg that prohibits this what would you code it on a PIR.

 

[Spark123]

The photo clearly says it is a BS4293 device which is basically the standard for an RCCB before they became EN61008. The trip times altered slightly between the two standards too.
An RCCB on its own does not offer any overcurrent protection.
An RCCB is what a lot of people call an RCD, however RCD is a generic term covering a number of devices such as RCCBs, SRCDs, RCBOs (which also has overcurrent protection).
iirc I have seen some RCBOs which have BS4293 printed on them as well as EN60898 for the overcurrent protection, think they were Square D Qoe.

 

[securespark]

Is a BS 4293 device....

http://standards.mackido.com/bs/bs-standards24_view_2414.html[/QUOTE]

No it is not. Read my link above. It says this device is BSEN61008
= RCD

If you're talking about the Proteus device, it has BS4293 written on it.

EDIT. Once again, numerical has beaten me to it.

 

[spanky]

i am aware that rcd is a generic term that has now entered the lexicon as the term to describe rccbs.

sorry for any confusion.

 

[LoveRocket]

external meter box tails in cavity - 1 way con unit fed garage - no earth in t+e feeding wee cu earth form big cu earth form rcd into wee cu

Any chance you could add some punctuation here so that we might decipher what you are trying to say? Cheers.