GRE Piping Conductivity Testing at Site

[Michael2009]

Hi,

I try to measure a GRE pipe with my multi meter. I am expected to get some mega ohm reading. But i getting totally open connection. (insulated)
that is require for GRE pipe to be conductive in hazardous zone. Vendor also claim their pipe is conductive type. But dont get the physical ohm reading. I am measure outside surface point to point in the same GRE pipe spool. I change to measure inside surface point to point. Is also same no conductivity reading.

I am not sure that should be other method of measurement not direct pulling multi meter on it or .. the GRE is non conductivity type.

Can you guys suggest me a method of testing the GRE pipe conductivity?


THanks in advance.

 

[LittleInch]

I'm not sure a standard hand held multimeter is good enough for what you're trying to measure.

You need a "megger"

https://www.sefelec.com/en/insulation-resistance-test.php

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[bimr]

7 Electrical Conductivity
Where electrically conductive pipe is required by Subsection 2/31, installation of the pipe is to be in
accordance with the following:
7.1 Resistance Measurement
The resistance to earth (ground) from any point in the system is not to exceed 1 mega-ohm. The resistance
is to be checked in the presence of the Surveyor.
7.3 Grounding (Earthing) Wire
Where used, grounding (earthing) wires or bonding straps are to be accessible for inspection. The Surveyor
is to verify that they are in visible locations.

Link