jarsmith,
I am sorry that you find my post insulting, however, it is my opinion that I had to put things in a blunt and forthright manner as again in my opinion, your post was misleading and incorrect.
You quoted a regulation from BS7671 which relates to construction sites, then you go on it appears to support point of use RCD's.
The two are mutually incompatible.
Your Chartered H&S status is of no interest to me, sorry, I have met and interacted with too many Chartered H&S professionals whose grasp of electrical engineering is IMHO less than acceptable.
This is not their "fault".
It is a specialist area, and if you are a JIB graded electrician or electrical technician with 2391, then you should have known better, however, I can tell you are not one of my students else you would have known better.
You did NOT IMHO word your original post in the manner that you have worded your reply to my post.
Also you must be careful with the term "point of origin".
The origin of an electrical circuit is the distribution board from which it originates.
If you are going to apply Section 710 regs then the RCD protection must be at the DB as 710 regs aply to construction sites.
There is no original un-modifed Reg with regard to 410.3.10, allowing for you using the Red book, as few yet will have moved over, I however am one of the few, and I have very good reasons for doing so.
In fact, I do have an apology, as I looked up construction & demolition sites, in the red book, then looked up 410.3.10, which is the reg I quoted.
However, this is section 704, not 710 so my quotes of the regs whist the wording is correct, the reference is wrong, as if this is the reg you are referring to is also wrong.
In the Red book there is no section 710.
IF you are working to the Green book, I fail to see the significance of Medical locations to construction works in any shape, unless they are in medical locations, & I don't believe that this is the case.
This will teach me to check my references fully, rather than take the information given in another post as correct, when it turns out not to be.
As the American kids say "my bad"!
I hate that term, but I can't think of anything better at this time of night.
Even in the Green book there is no 710.410.3.10.
I am not sure which JIB exam you did to become JIB 17th Edition qualified as I have never seen a JIB exam on BS7671. I await to be educated.
All of the exams with regard to BS7671 I have ever come across, sat or taught are set by City & Guilds.
I am unsure of what you mean by test & inspect etc.
If you mean you hold 2391-10 & 2391-20 (also known as 2400), then this concerns me even more to be honest.
BTW it's professional, NOT proffesional!
It seems to me from your posts that you do not understand BS7671 sufficiently at all.
I have admitted my misinterpretation, which was due to me believing your quote, big mistake on my part.
I will agree that there is NO requirement in BS7671 to utilise what is "commonly" known as a "socket tester", however, there IS a requirement to test sockets.
IMHO your post suggests that BS7671 extends past the socket outlet, if it did then the situation with regard to PAT and various other "electrical requirements" would be very different.
I did not see the reference to "multi-traders", nor the situation with regard to exposed conductive parts, however, what if the "multi-trader" has as their "first trade" that of a competent electrician?
Following which they have diversified?
What is the problem with them having plug in socket testers as long as they understand the limitations to their use, which, they should.
These plug in socket testers are very limited in their use, they are not acceptable for "proving dead" IMHO, or that it seems of the guidance issued by HSE and the trade bodies.
I don't really understand the use of them in many situations.
I have had British Gas "engineers" (I HATE this term as they are NOT engineers by any means, however, I hope the term serves a purpose) plug them in at my home and I have questioned the output they have found, to which they do not have an acceptable answer.
I have heard from others in the electrical profession that they have been called to premises after British Gas personnel have used these devices and declared no earth being present, when in fact the installation is TT and perfectly acceptable to BS7671 & accepted industry practice.
Your response to stillp, seems to me to be at odds with your earlier posts.