This is a test that is being performed at the request of the electrical inspector prior to energizing the system.
See the following additional comments.
When testing branch circuits to assure that there does not exist a connection between the neutral and ground conductors, what is the acceptable resistance allowed between the conductors?
What is the proper instrument to use for this measurement?
I have received different opinions from testers, inspectors and engineers.
In addition to your opinions, I am looking for documentation that will define the requirement for performing the test.
Many jurisdictions in Southern California require the following test to assure compliance with 250-24 (a) 5. At each panel-board the neutral feeder is removed from the neutral buss for that panel. An ohmmeter is placed across the neutral and ground busses. A reading of infinity is required to assure that no connection exists between the neutral and ground of the branch circuits. If necessary the neutrals are removed from the neutral buss and the neutral are tested one at a time.
