CPS assessment concerns/questions...

[Eco Chap]

Hi guys.

After some confirmation from the majority about a few questions our recent assessor had in regards to our certification and some answered questions/suggestions;

Cert: In regards to supply characteristics and earthing arrangements. System was a TN-C-S, I was always taught that a TN-C-S system was a.c. 1 phase (2 wire) as the incoming cable would be a single line and combined neutral equalling 2 conductors (obviously split at head). I was told otherwise on the assessment and that a TN-C-S would be a.c. (3 wire) with TT being the only a.c. (2 wire) connection - any thoughts...?

Questions re RCD protection on condition report, I'd considered lack of on sockets to be a C3 but was told any downstairs socket could supply outdoor equipment so should be C2, surely any household socket could supply outdoor equipment with the use of an extension lead so should we be coding all non rcd protected sockets as C2?

Example of a C3 re: condition report. I went obvious lack of circuit details, lack of rcd protection on buried cables. I was then told to think more basic and that a cracked bayonet fitting on a ceiling would count on a high ceiling. Again any cracked fitting I'd personally be inclined to code a C2 or maybe C3 with a notice to consider replacing if no access to live parts however in regards to placing out of reach again I was taught that we couldn't use this method in a domestic setting (only in premises which are supervised by a skilled person).

Just after some reassurance for future purposes to make sure we're doing our job correctly.

All opinions appreciated.

Thanks, Joe.

 

[Andy78]

He is incorrect about the supply definition. Single phase TNC-S is a 2 wire supply. Ask him what the third wire is.

According to the best practice guide for EICR lack of RCD protection for sockets likely to be used for outdoor equipment attracts a C2. This depends a lot on the individual situation to my mind though.

Depends what was cracked on the bayonet. If it was the skirt maybe C3, if the screw on base cover was badly cracked, maybe C1, if the lampholder damaged maybe C2. Placing out of reach is not to be used in a domestic situation to my mind either.

What scheme is this ?

 

[Leesparkykent]

The section on the cert says number and type of live conductors.

 

[Eco Chap]

Thanks for replies.

I'm not really inclined to say which provider it was at this point but I will say it wasn't Napit on the basis that the last contractors I worked for were with Napit and the assessor I used to have (Paul if i recall)was brilliant and really knew his stuff. Any questions I had were instantly answered unless he wasn't sure in which case you'd get a reply soon after.

In comparison the present scheme provider have been poor. Our assessor wasn't even sure how much if any charge there was for registering each notifiable installation on their system(and to LABC). They've also not included commercial works in our scheme as requested, I'm chasing this but to be honest I'm not entirely sure what benefit it gives us having the extra tick in that box!

I don't plan on making any complaints as such but its a bit of a PITA when you receive conflicting information from those who are supposed to know better.

Rant over...