Megger Test

Dear All,
I have a done a house hold wiring for villa, During a megger test we notice that valve between phase and neutral is good 500 Mohm when test between Phase to earth wire it is shown as less than 100 Mohm when I remove the all wire from conduit and we test it is showing correctly as 500Mohm, After that i replaced all wire as New before pulling the wire in conduit i checked it is shown correctly as 500 Mohm after pulled the wire in conduit it shown as below 100 Mohm Please give me solution,
Wire: National wire UAE
Tester:Fluke 1663 Multifunction Installation Tester (new)
  • Interview Candidate
  • 2
  • 7656

Showing Answers 1 - 2 of 2 Answers

bhanu

  • Jul 21st, 2016
 

Megger which is used to find the discoonection in the underground cables

  Was this answer useful?  Yes

Edwin Rodrigues

  • Aug 3rd, 2016
 

The conduit probably has moisture or humidity. Or the temperature of wires inside the conduit has increased. The insulation resistance depends on factors of humidity and temperature.

  Was this answer useful?  Yes

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.

 

Related Answered Questions

 

Related Open Questions