Discuss lack of 30ma rcd protection in the Commercial Electrical Advice area at ElectriciansForums.net

F

foghorn

hi under the 17th ammnendment 3 what code would be given to lack of 30ma rcd protection in a comercial installation 100ma rcd is present
 
For an EICR it should be a minimum C3, you do not need to produce a risk assessment.
 
Look at regs and the notes to 411.3.3 it refers to SI no. which then takes you to HSE risk assessment. Its no ordinary risk assessment and leaves onerous responsibility on you. Hence give it a C2. What about cables in walls and ordinary or skilled persons with just a socket. The whole thrust is to get RCDs into the workplace/home.
 
411.3.3 Additional protection
In a.c. systems, additional protection by means of an RCD in accordance with Regulation 415.1 shall be provided for:

  1. (i) socket-outlets with a rated current not exceeding 20 A, and
  2. (ii) mobile equipment with a current rating not exceeding 32 A for use outdoors.
An exception to (i) is permitted:

  1. (a) where, other than for an installation in a dwelling, a documented risk assessment determines that the RCD protection is not necessary, or
  2. (b) for a specific labelled or otherwise suitably identified socket-outlet provided for connection of a particular item of equipment.
 
See Appendix 2, item 10 in respect of risk assessment.
10. The Management of Health and Safety at Work Regulations 1999 (SI 1999 No 3242) require employers and self-employed persons to assess risks to workers and others who may be affected by their work or business. This is intended to enable them to identify measures they need to take to comply with the law. Guidance from the Health and Safety Executive INDG163 gives advice on these regulations.
 
surely a risk assessment would be needed if i was saying that An exception to 30 ma rcd is permitted which i would not be saying ony that code 3 recommend improvemnt
 
I am not being contentious, I would like to understand your reasoning behind that statement please. With any supporting evidence if poss?
I know you are not but the notes in BS7671 for producing an EICR make no mention of a risk assessment.
 
TBH I have recently completed about 300 pgs of EICR and we coded all buildings (4 in all, commercial offices) as C3 with a strongly worded caveat that all building would be part of PM to upgrade as the budget allowed. I suppose that if we say C2 we force the client to pay up for the improvement. If we say C3 we are suggesting that there is a significant improvement in safety if they upgrade. In principle I agree with @westward10 there is nothing to say we should do other than code it. If with a C3 we are saying the installation is satisfactory it rather flies in the face of 411.3.3 so being a belt and braces person I have (but not) considered producing a risk assessement to justify a C3 as you are giving licence to the client to not bother with upgrading. And of course as it says in the intro of BS7671 amd 3 it applies henceforth, not retrospectively.
 
valid point u have made there vortigern code 2 does kinda ring alarm bells to the client i think as long as its coded and commented in the comment section then covered i guess it depends on what risk the inspector feels at the time of the inspection
 
TBH I have recently completed about 300 pgs of EICR and we coded all buildings (4 in all, commercial offices) as C3 with a strongly worded caveat that all building would be part of PM to upgrade as the budget allowed. I suppose that if we say C2 we force the client to pay up for the improvement. If we say C3 we are suggesting that there is a significant improvement in safety if they upgrade. In principle I agree with @westward10 there is nothing to say we should do other than code it. If with a C3 we are saying the installation is satisfactory it rather flies in the face of 411.3.3 so being a belt and braces person I have (but not) considered producing a risk assessement to justify a C3 as you are giving licence to the client to not bother with upgrading. And of course as it says in the intro of BS7671 amd 3 it applies henceforth, not retrospectively.
I have never agreed that if there are no C1 or C2 entries it is deemed satisfactory, you could have 30 odd C3, but that is okay, not in my eyes which is why we have reworded our Reports to reflect this.
 
I believe the format for reporting Periodics has been dumbed down because the old Category 1 to 4 was much better, maybe ignoring Cat 4 where you had Urgent, Improvement and Further Investigation. Now there is no middle ground where something may not be urgent/immediate but just a recommendation to improve it. Most C3 items would be a contravention of the EAWR 1989 but it not deemed immediate or urgent, nevertheless it would be a breech of a legal document. It sounds like you have just completed a large EICR, I am just about to start a 800+ circuit site and to me the current format doesn't suit. We deem sites unsatisfactory even if there are no C1 and/or C2 items because they are and we have reworded the small print to this effect.
 
@westward10 thanks for that. I can see where you are going with that. Never thought to reword the model forms, thought that was heresy of the first order. However I can see it can be justified and is even needed. So just for instance in the case of the four commercial buildings owned by one company I mentioned earlier. With pretty much no RCD (except a few here and there) would you go for C3/Satisfactory or C3/Unsatisfactory? Or would your re-wording state a fourth possibility? And 800! Phew!!!
Next week I am going to look and see if I would like to take on EICR on properties all over England for a well know retirement housing association. Blocks of flats, endless flats. If I do, I would like to iron out my approach before I start, if I do. Could be thousands not quite sure yet.
 
If the only thing on the Report was no additional rcd protection, though not very likely I would say satisfactory. Yes 800+ so have 4 to 5 weeks on the night shift. I think if you have a client with multiple dwellings consistency is key between the Reports, never assume these things will be filed away you may have some --- like me pondering over why is it C2 in this Report and now C3 in another :D
 
Code C3 or none at all.
No need for a documented RA.
It's the client's responsibility to produce a documented RA.
Any documented RA must conclude that RCD protection for socket-outlets is unnecessary.
There are no exceptions for providing RCD protection for mobile equipment used outdoors.
 

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