Insulation Resistance Test Results Explained

The measured resistance indicates the condition of the insulation between two conductive parts.

Insulation resistance test results explained.

Historically many field electricians use the somewhat arbitrary standard of 1 megohm per kv. For low voltage installations i e. Posted on march 22. Also acceptable values of insulation resistance depend upon the equipment you re testing.

The international electrical testing association neta specification maintenance testing specifications for electrical power distribution equipment and. Understanding insulation resistance testing. Dc test voltage up to 100v 100v and 250v 440v to 550v 500v and 1 000v 2 400v. Higher voltages are used to stress an insulation to a greater degree and thus obtain more accurate results.

The insulation resistance test consists in measuring the insulation resistance of a device under test while phase and neutral are short circuited together. Hands down without a doubt one of the most universally searched topics on ec m s website from a historical perspective is insulation resistance testing as a result some of our most popular evergreen articles like understanding insulation resistance testing continue to top the charts when it comes to most popular content. Time resistance testing method this method is fairly independent of temperature and often. The insulation resistance test is the second test required by the electrical safety testing standards.