Insulation Resistance Test Standard Values

Based upon equipment rating.

Insulation resistance test standard values.

3 shows a typical scale which reads increasing resistance values from left up to infinity or a resistance too high to be measured. Figure 4 typical record of insulation resistance of a mill motor. As per ie rules 1956. Use these values in the absence of consensus standards dealing with insulation resistance tests.

1k v 1 mω minimum 1kv 1 mω 1kv. 1k v 1 mω minimum 1kv 1 mω 1kv. Insulation resistance test values the insulation resistance values on this page are based off of representative values suggested by the neta standards review council. Historically many field electricians use the somewhat arbitrary standard of 1 megohm per kv.

Also acceptable values of insulation resistance depend upon the equipment you re testing. At a pressure of 1000 v applied between each live conductor and earth for a period of one minute the insulation resistance of hv installations shall be at least 1 mega ohm or as specified by the bureau of indian standards. The insulation resistance test is the second test required by the electrical safety testing standards. The insulation resistance test consists in measuring the insulation resistance of a.

As per ie rules 1956. At a pressure of 1000 v applied between each live conductor and earth for a period of one minute the insulation resistance of hv installations shall be at least 1 mega ohm or as specified by the bureau of indian standards. One meg ohm rule for ir value for equipment. Based upon equipment rating.

Curve a shows test values as measured. The international electrical testing association neta specification maintenance testing specifications for electrical power distribution equipment and.