Mixed manufacturer devices in din rail enclosure.What code?

gkenyon:

Sparkingchip:

I did an EICR yesterday for a house purchaser, the vendor was at home and enquired what the long green wire is for, as in my wander lead. I explained that in a house like his with metal faced fittings and lots of metal light fittings it is the quickest and easiest way of ensuring things that need to be earthed are.


The range cooker was checked by dabbing the probe onto the screw of the wall mounted switch and the appliance itself, the shower had to have its cover removed. 

So, you're happy to say that the range cooker has all parts earthed that are supposed to be?

Perhaps rather than the range cooker was checked, it would be better to say that continuity of the CPC to the cooker was checked. That is all that the EICR requires, but Graham's point is well-made and stimulates a degree of thought.

Sparkingchip:

From a estimate for improvements identified as being required on an EICR:

"Replace the existing MK main switch in the existing MK consumer unit with a MK 6400s 100 amp 100Ma time delayed RCD or a MK 100 amp 300 mA RCD, unfortunately all MK consumer unit products including protective devices are now obsolete and obtaining a suitable RCD will mean finding a wholesaler with old stock or buying a second hand RCD through an internet trading site such as Ebay, the cost of such a RCD cannot be accurately quoted as it depends on the current price on the second-hand market. I have allowed £ 160.00 plus 20% handling to cover the cost of supplying a suitable RCD and will adjust the final invoice according to the true cost, if the landlord wishes to source and supply a suitable RCD they are welcome to do so."

 

MK dual RCD consumer unit with 25 mm tails into the top of the main switch and twin internal tails out at the bottom, so it does not need to be compatible with the busbar. I could do it for a few quid with a RCD out of the back of my van, BUT!

EICRs go up to the point of connection of an appliance or machinery, and no further

AJJewsbury:

EICRs go up to the point of connection of an appliance or machinery, and no further

So what is supposed to happen where there is "BS 7671" wiring beyond the "appliance"? I'm thinking of the likes of room stats beyond a CH boiler or even intruder alarm wiring beyond the panel.

My first reaction (at least as far as CH systems are concerned) is that they are beyond the scope of BS 7671, but Chapter 11 does not support that viewpoint. However, if you were to install a new CH system, whose power supply is still from the same FCU, you wouldn't expect to provide an EIC or a MWC. Or would you? ?


Oh yes, and would you measure Zs at the stat?