no earth

[xbeazt]

I meant " an acceptable reading " rather than " no earth ". I will be shifting the breakers to the RCD side tomorrow.

 

[Engineer54]

I can clearly see the earth strap on the outer sheath of the main incomer which comes from the ground up. All the surrounding properties are of the same design. On Monday I will make my 4th phone call to the supplier, they also confirmed the supply type on my initial phone call and are aware that there is an immediate issue. I was also under the assumption that it was treated as an emergency and would be sorted pretty swiftly. The main issue is that this property is used as a care home for mentally ill people. But the suppliers dont seem to care at all.

When you phone the DNO again ask for the persons name and position whom you are talking too!! Re- affirm that this will be the 5th time of calling and that the installation in question is a mental care facility. Might even be better to ask to speak to the area manager responsible...

If what your saying is correct, in that you have a Ze of 283 ohms (then something is very wrong and can only deteriorate further) then they should be treating this call as an emergency attendance. Make it known to the DNO person on the other end of the line that you WILL take things further if they fail or refuse to address their obligations to maintain their equipment!!

 

[xbeazt]

Cheers 54. I will ring tomorrow.

 

[xbeazt]

Just a quick update to let everyone know what happend.

The supplier came on Friday and installed a new cut out. They also found it odd that there was no presence of an earth and on further inspection realised that earth clamp that was on was only connected to the armouring of the incomer and not to the lead sheathing also. Anyway I nice new cut out has been installed and I can finish the testing.

Now my next concern is to do with the previous test certs that I have which clearly state a figure for maximum measured Zs for the circuits. This could not be possible unless it was calculated and Ze was aquired by enquiry.

Surely there is some misjustice here as the lads fitting the cut out said the earth strap had been like that for some time and was in no way connected properly.

What is everyones thoughts on this matter and what / if any action should be taken ?

 

[Geordie Spark]

Just a quick update to let everyone know what happend.

The supplier came on Friday and installed a new cut out. They also found it odd that there was no presence of an earth and on further inspection realised that earth clamp that was on was only connected to the armouring of the incomer and not to the lead sheathing also. Anyway I nice new cut out has been installed and I can finish the testing.

Now my next concern is to do with the previous test certs that I have which clearly state a figure for maximum measured Zs for the circuits. This could not be possible unless it was calculated and Ze was aquired by enquiry.

Surely there is some misjustice here as the lads fitting the cut out said the earth strap had been like that for some time and was in no way connected properly.

What is everyones thoughts on this matter and what / if any action should be taken ?

Well the first thing I would do is present my invoice for the work I've done.

 

[xbeazt]

Believe me, at the end of the month, the only thing that concerns me is putting my invoice in and receiving my sweet sweet hard earned pennies

 

[Geordie Spark]

Believe me, at the end of the month, the only thing that concerns me is putting my invoice in and receiving my sweet sweet hard earned pennies

Good lad.

All you can do is make sure that your work is spot-on and that you get paid for doing it so that you can a) sleep with a clear conscience and b) pay for the food on your table.

Whatever other folk have done on the job before you arrived is something you have little or no control over and you'll probably find if you try to "do something about it" nobody is interested.

Keep up the good work & stay safe.

 

[Engineer54]

Just a quick update to let everyone know what happend.

The supplier came on Friday and installed a new cut out. They also found it odd that there was no presence of an earth and on further inspection realised that earth clamp that was on was only connected to the armouring of the incomer and not to the lead sheathing also. Anyway I nice new cut out has been installed and I can finish the testing.

Now my next concern is to do with the previous test certs that I have which clearly state a figure for maximum measured Zs for the circuits. This could not be possible unless it was calculated and Ze was aquired by enquiry.

Surely there is some misjustice here as the lads fitting the cut out said the earth strap had been like that for some time and was in no way connected properly.

What is everyones thoughts on this matter and what / if any action should be taken ?

So how did the DNO connect the main earth conductor to the the lead sheath?? Or is it now a PME connection??

 

[xbeazt]

They just cut back the armouring and bonded the clamp to the lead outer sheathing and applied a resin to the exposed area.

 

[Engineer54]

They used a BS 951 earth clamp or other clamp?? Or did they solder the earth conductor to the lead sheath??

 

[telectrix]

They used a BS 951 earth clamp or other clamp?? Or did they solder the earth conductor to the lead sheath??

just what i was wondering. be nice to know...... OP????

 

[xbeazt]

From what I saw it was just a 951 clamp and a tar like resin from a mix. I will take a picture tomorrow and post.