Site cabin

[DT1991]

Does a site cabin for admin and canteen facilities fall under a construction site for BS7671

The cabin is designed to be onsite for a year.

 

[westward10]

No it falls under general Regulations however the supply to it may fall under Section 704.

 

[DT1991]

I will read 704 thanks.

 

[DT1991]

Hi westward I have read section 704.

Are you referring to external influences?

Taking into account already the requirements of section 1 to 6.

 

[westward10]

Might help if we knew why you are asking.

 

[DT1991]

Because I have been asked to quote a supply to a cabin and is outside my usual type of work.

If I cannot fully understand the requirement then I will give this job a miss.
[automerge]1585485488[/automerge]
My understanding so far.

I can utilise a TNCS as means of earthing.

I have to determine if the cabin is a extraneous conductive part, they is water into the cabin and waste pipe but this is plastic.

The cabin comes pre wired and is RCD protected at the DB.

 

[Mike Johnson]

Maybe something in the "Health Safety and Welfare Regulations" not forgetting this is a temporary supply that also comes under the "Mobile Site" regulations.

 

[Midwest]

No it falls under general Regulations however the supply to it may fall under Section 704.

Would it not be considered a prefabricated building or part of construction site? Its more likely to fall into the Scope, than Exclusions from the Scope

 

[westward10]

Would it not be considered a prefabricated building or part of construction site? Its more likely to fall into the Scope, than Exclusions from the Scope

Section 704 states; This section does not apply to installations in administrative locations of construction sites (e.g. offices, cloakrooms, meeting rooms, canteens, restaurants, dormitories, toilets), where the general requirements of Parts 1 to 6 apply.

 

[cliffed]

I always TT the supply,in temporary conditions.

 

[Midwest]

Section 704 states; This section does not apply to installations in administrative locations of construction sites (e.g. offices, cloakrooms, meeting rooms, canteens, restaurants, dormitories, toilets), where the general requirements of Parts 1 to 6 apply.

Cant remember what 704 is for? But surely other bits of BS7671 would apply.
[automerge]1585496978[/automerge]

I always TT the supply,in temporary conditions.

Why, generally interested.

 

[westward10]

Section 704 is for Construction and Demolition sites. Yes the general requirements of BS7671 apply to site cabins.

 

[Midwest]

Section 704 is for Construction and Demolition sites. Yes the general requirements of BS7671 apply to site cabins.

Thought so.

But then the supply cable might come under 704, like you said.

See where you are coming from

 

[westward10]

The supply almost certainly will.

 

[DT1991]

Can you explain why the supply to the cabin will come under 704 when it is not on a construction or demolition site?

 

[cliffed]

Cant remember what 704 is for? But surely other bits of BS7671 would apply.
[automerge]1585496978[/automerge]

Why, generally interested.

Cant remember what 704 is for? But surely other bits of BS7671 would apply.
[automerge]1585496978[/automerge]

Why, generally interested.

Mainly because of the problems of Sizing protective bonding conductors,relating to the Tncs earthing system.

 

[westward10]

Can you explain why the supply to the cabin will come under 704 when it is not on a construction or demolition site?

So this isn't a construction site.

 

[David Prosser]

So this isn't a construction site.

Most of our of site cabins are not within the construction site. They are keeped in a dedicated compound near to but not within the construction site.

 

[DT1991]

So this isn't a construction site.

What dave said best describes the set up.
Should of included that in first post sorry

 

[westward10]

I suspect the supply comes from the construction site hence it would be subject to Section 704.