Insulation Resistance problem with elektra underfloorheating

[diamondtiling]

Is this just on your heat mats..?

All the ones i have installed, i use my multi meter and check continuity between live and neutral and do an Ohms reading this way as well and i always get the same reading that is on the tag or in the booklet.. never a 0 reading..

That exactly what I do Dave, I have a fluke tester and it always gives me a reading that is the same as the label. Never had to test the earth, varme kits dont have an earth wire.

 

[Stewart]

Is this just on your heat mats..?

All the ones i have installed, i use my multi meter and check continuity between live and neutral and do an Ohms reading this way as well and i always get the same reading that is on the tag or in the booklet.. never a 0 reading..

I'm the same as you Dave....... ohms reading from live and neutral and that's the way the manual tells me too. As for the mat alarm sensor while installing, this is connected to live, neutral and earth.

 

[pjrich]

Is this just on your heat mats..?

All the ones i have installed, i use my multi meter and check continuity between live and neutral and do an Ohms reading this way as well and i always get the same reading that is on the tag or in the booklet.. never a 0 reading..

Not just our mats, all should be checked for insulation resistance - ensures theres no leakage to earth.

What you describe with the multimeter is the resistance check of the mat, which also must be done before and after the install.

 

[pjrich]

That exactly what I do Dave, I have a fluke tester and it always gives me a reading that is the same as the label. Never had to test the earth, varme kits dont have an earth wire.

As said to Dave, checking with multimeter the resistance is definatley the right thing to do but insulation resistance should also be checked.

If the mat has not earth then it does not comply with the requirements of the 17th edition wiring regulations.

 

[DHTiling]

Thanks for that, so in theory this IS the sparks job.. but a test on the mat is sufficient by the tiler..?

 

[DHTiling]

Can this Insulation test be done with a multi meter pete..?

 

[pjrich]

Thanks for that, so in theory this IS the sparks job.. but a test on the mat is sufficient by the tiler..?

Insulation resistance is generally done by the Spark, all electrical installs have to be checked for insulation resistance so they will have the kit.

 

[pjrich]

Can this Insulation test be done with a multi meter pete..?

Dave, no a multimeter can not be used for insulation resistance - uses a minimum of 500V dc to inject a current through the mat. So it proves that no current will leak to earth.

 

[DHTiling]

Sound...


i have not seen any spark i have used do that test then..:lol:...

 

[pjrich]

Sound...


i have not seen any spark i have used do that test then..:lol:...

They may have used something like this, which is a multifunction tester which will do all the tests a sparks need.