Metal Conduit Used As Earth

[EFLImpudence]

Ok. I can see that may be possible on part of the route.

Otherwise, agree with Daniel.

But then, could be an older version of that's how we've always done it.

 

[bobtol]

Here is what I would like to do, I hope it is clear enough to see what I am looking for

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• bobtol
• 26 Mar 2014
• 1

 

[bobtol]

Just added a couple of pic's of the consumer unit if that helps

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• bobtol
• 26 Mar 2014
• 1

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• bobtol
• 26 Mar 2014
• 1

 

[bobtol]

Socket tester would be http://www.ebay.co.uk/itm/like/2811...&ff3=1&ff11=ICEP3.0.0&ff12=67&ff13=80&ff14=95 Sorry it didn't load last time

 

[EFLImpudence]

Yes, all looks good to do what you want.

 

[EFLImpudence]

Just one thing with the consumer unit.

Be aware that the two RCCB/Main switches are separate and will both have to be switched off to isolate everything in the house.

 

[bobtol]

Thanks EFLI
Are you saying my plan looks ok to do

I will double check it is a ring main

I will also make sure the efl is ok before proceeding.

Is the socket tester good enough to check?

Thanks for all the help, very quick

 

[bobtol]

Hi
Yeh always do switch both of them off before doing anything electrical, I even hit the mane switch

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• bobtol
• 26 Mar 2014
• 1

 

[EFLImpudence]

Are you saying my plan looks ok to do

Yes.

I will double check it is a ring main

Yes.

I will also make sure the efl is ok before proceeding.

Yes.

Is the socket tester good enough to check?

I haven't used one of those but it should be.

 

[EFLImpudence]

Yeh always do switch both of them off before doing anything electrical, I even hit the mane switch

Ah. That's the point.

You don't have a Main Switch. You have (we now see) three separate ones.

 

[stillp]

Do any of the pros on here (or the DIYers with 'proper' test equipment) have an opinion on whether those socket testers give a meaningful earth continuity test?

 

[JohnW2]

Do any of the pros on here (or the DIYers with 'proper' test equipment) have an opinion on whether those socket testers give a meaningful earth continuity test?

I did once do some experiments with one of the Martindale ones, and it appeared to do 'what it said on the tin' - but it's probably debatable as to what is 'meaningful'.

The tester examined correctly gave "0-1.7Ω" answers for all of the sockets I tested it on in my home (true Zs in the range 0.5Ω to about 1.5&#937. When I 'topped up' to loop impedance to about 2Ω, it again correctly reported the answer as "1.7-5.0Ω". If that behaviour is consistent, then those results are, I suppose, meaningful.

I also used added resistors and confirmed that (just over the bottom of each 'range') it correctly reported 5-10, 10-100, 100-200 and 200-500 ohm loop impedances - but I'm not sure how useful any of that is. If the tester does not indicate "0-1.7Ω", I would think that further investigation (and proper measurement) would be indicated.

Kind Regards, John

 

[bobtol]

Hi
Yes Sorry I do switch of all the switches, even though one is for lights and the other is for heating. I then check the lights and sockets to make sure they are dead. I like to make sure I am doing everything right, hence all the questions. I love DIY and do a lot but never to much with Electrics, It is something I would love to learn more about and this forum is a great place to hear opinions and get good advice.

 

[securespark]

What I have done in the past is used an appropriately sized screw to fix a flying lead via a ring crimp to one of the spare "vertical" fixing lugs in the socket.

That way I have found I got a decent connection without disturbing the original connection.

 

[bobtol]

Hi
Would one of these be ok to use, If I rub the black paint of one of the pipes and then take an earth from this

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• bobtol
• 27 Mar 2014
• 1