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#137273 06/17/03 12:54 PM
Joined: Sep 2002
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C
C-H Offline OP
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Let's say I want to test the wiring in a house. The wiring is new but undocumented.

Which tools and meters do I need?

Which tests should I carry out?

How should these tests be carried out?

Which values should I get?

I know Trumpy outlined the tests required in NZ. But I haven't seen a 'hands on' guide to the testing procedure. The Swedish regs are as always unclear.

#137274 06/18/03 04:14 AM
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IEE Regs. in the U.K. set out a whole range of tests for correct earthing, polarity, ring continuity, loop impedance, etc.

This guide gives a pretty good idea of what's involved: http://www.tlc-direct.co.uk/Book/8.1.1.htm

#137275 06/18/03 05:25 PM
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have you got a week for us to explain!!!!

#137276 06/19/03 04:23 AM
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D
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Thanks for posting that link Paul, it's saved me a lot of typing.

C-H,
Obviously these are for standard UK installations, so there will certainly be some variations in Sweden.
Do Swedish wiring regs not have Guidance Notes on Inspection & Testing, suggesting appropriate testing methods?

#137277 06/19/03 09:29 AM
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C-H Offline OP
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Quote

Obviously these are for standard UK installations, so there will certainly be some variations in Sweden.

Maybe. Some things like testing the integrity of a ring are not needed.

Quote

Do Swedish wiring regs not have Guidance Notes on Inspection & Testing, suggesting appropriate testing methods?

Errr... That is probably in the guide that you can buy in addition to the regulations.

For the insultation testing: Can you use 1000V tester like this one even if only a 500V test is required?

#137278 06/20/03 04:43 AM
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Sure. The Regs. just specify a minimum test voltage of 500V DC for all 240V single-phase and 415V 3-phase systems.

#137279 06/20/03 10:34 PM
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C-H,
I'd just like to make a point.
The Regulations have never been written with the intention of them being a training guide in the practical guide in the why's and where's of Electrical work(including testing).
This side of Electrical work, is learnt during an apprenticeship or similar type of training system.
Don't you need to be Qualified in Sweden to test new Electrical work?(and certify it, where this is required?), before it is connected to a supply.
Please do not misconstrue this posting as a personal attack on yourself, as this is not my intention, at all. [Linked Image]

#137280 06/22/03 11:38 AM
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C-H Offline OP
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Quote

I'd just like to make a point.
The Regulations have never been written with the intention of them being a training guide in the practical guide in the why's and where's of Electrical work(including testing).

You're right. This is why I couldn't simply look it up... [Linked Image]

Quote

Don't you need to be Qualified in Sweden to test new Electrical work?(and certify it, where this is required?), before it is connected to a supply.

Yes, you do. (Well, legally you or your boss has to be qualified.)

The questions were more or less hypotetical, as I don't have a new installation which needs testing.

(My parents just bought a house, and I intend to call an electrician to have it inspected. I was curious what tests he is supposed to carry out. The thing is that the wiring in this case is rather sloppy which makes me distrust the workmanship of the local electricans. Some boxes are so full of wires that it is impossible to the cover on. I touched one wirenut yesterday and it came off instantly.)



[This message has been edited by C-H (edited 06-22-2003).]

#137281 06/27/03 05:31 PM
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The tests outlined in that link would be equally applicable to either a new installation or to an electrician inspecting and testing an existing system.

NOte particularly the requirement that certain tests be carried out before others in order to maintain proper safety.

#137282 06/27/03 10:07 PM
Joined: Jul 2002
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Paul,
That's a really good link, mate!. [Linked Image]
Must have a decent read of it sometime.
C-H,
I would also be very suspicious of any electricians, whose standard of workmanship is like that you have just described.
I'd keep an eye on the testing process, if I were you. [Linked Image]

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