I think an Approved Document is a lot more than a 'guide'.
You say that but..
This document is one of a series that has been approved and issued by the Secretary of State for the purpose of providing practical guidance with respect to the requirements of Schedule 1 to and regulation 7 of the Building Regulations 2000 (SI 2000/2531) for England and Wales [as subsequently amended] ....Approved Documents are intended to provide guidance for some of the more common building situations.
then...
However, there may well be alternative ways of achieving compliance with the requirements. Thus there is no obligation to adopt any particular solution contained in an Approved Document if you prefer to meet the relevant requirement in some other way.
Would that other way be to follow the
actual law?
I would suggest that any sane Court of law would interpret that (in particular the bit I have highlighted in red) as saying that following the 'guidance' contained in the Approved Document is one way of 'achieving compliance with the requirements [of the law]' - what else can "there may well be alternative ways of achieving compliance...." possibly be taken to mean?
You seem to be arguing both ways in that -
There are alternative ways to comply so we must follow the approved document to comply.
If the same government which has written the laws writes this in an Approved Document, this surely would more-or-less compel a Court to conclude that this is how the government wish the law to be interpreted.
It is quite often the case that the court has to interpret the law (as written) because it is so badly written.
That being the case, I would think that 'complying with the guidance contained in Approved Document P' would almost always have to be accepted as indicating compliance with Part P.
Unless you actually obeyed what the law itself said.
However, as is the case, the
actual law states
"special installation means an outdoor lighting installation" where 'special installation' means the work
is notifiable.
Then a document, intended to 'offer practical guidance' for the situation states that the outdoor lighting installation is not notifiable if there are no
exposed outdoor connections. The situation is clearly nonsensical.
When are there ever any
exposed outdoor connections?
This 'exemption' does not apply to an exterior socket outlet
since it is an outdoor connection [N.B. NOT exposed]
that (which)
may be connected to cables that (which)
cross the garden and requires RCD protection.
The fact that there is an 'S' on require
s indicates that the RCD protection is required by the socket and not the cables.
So - as written, the deciding factor leading to the requirement of notification is that the external socket outlet requires RCD protection whereas the external lighting fixture does not.
Is RCD protection the determining factor for notification in any other instance?
The situation is clearly ludicrous and, either written by idiots or those who know nothing of the actual wording of the actual law, or, more worryingly, the same people who wrote the actual law.