Insulation resistance test on length of SWA cable

[Toneyz]

Doing new supplies for a school new Shneider 3 phase & N MCCB panel board. 50mm 4 core SWA one end made off in the board earth fly lead from banjo to earth terminal. The other end gland made off in gland (fly lead not made off yet) 3 phases and neutral just hanging there. Done installation resistance test to earth at 500v got 10Mohms to earth on all phases run is about 50mtrs?

 

[westward10]

What was the reading between conductors.

 

[Silly Sausage]

one end made off in the board earth fly lead from banjo to earth terminal.

As in connected to the switch?
If so, re-test with cable disconnected.

 

[littlespark]

What is it connected into at the board that’s made off? Thinking you’re reading through equipment.

Either that, or the cables damaged somewhere

 

[Pete999]

Doing new supplies for a school new Shneider 3 phase & N MCCB panel board. 50mm 4 core SWA one end made off in the board earth fly lead from banjo to earth terminal. The other end gland made off in gland (fly lead not made off yet) 3 phases and neutral just hanging there. Done installation resistance test to earth at 500v got 10Mohms to earth on all phases run is about 50mtrs?

You mean INSULATION resistance test Mate surely

 

[Yozza19]

Has the mccb got a vgi add on the bottom?
If so you may just of nackerd it

 

[Toneyz]

What was the reading between conductors.

Didn't get that far.

 

[Toneyz]

You mean INSULATION resistance test Mate surely

yes of course.

 

[Toneyz]

Has the mccb got a vgi add on the bottom?
If so you may just of nackerd it

So used to using Eaton so maybe you could let me know what this vgi is, please.

 

[Pete999]

So used to using Eaton so maybe you could let me know what this vgi is, please.

As far as I am aware it's an Earth Leakage add on block

 

[Toneyz]

As far as I am aware it's an Earth Leakage add on block

Not as far as I know a standard MCCB they don't do them in S.P. range is NSX MLG2.2 if that helps it has CT metering but as I posted nothing on end (load)

 

[Wilko]

I'd expect >999 on a new cable, just saying.

 

[Lucien Nunes]

Did you try drying the exposed surface of the insulation between the bared ends of the cores and the gland? 10MΩ could just about be caused by condensation.

I think 'vgi' should read Vigi, Schneider's trade mark for their residual current add-on actuator.

 

[telectrix]

wasn't vigi the artificial intelligence in Star Trek 1?

 

[Pete999]

wasn't vigi the artificial intelligence in Star Trek 1?

No Tel Vger, As voyager with the oya erased after centuries of exposure to cosmic space dust and radiation, Crikey don't you anything? lol