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70E article 250 Test Instruments

Question asked by sunil.ghedia on Oct 5, 2020
Latest reply on Oct 18, 2020 by wojciech.pytko

70E article 250.2(B) requires testing of devices listed in 250.1(1) thru 50.1(14) that is used as primary protection from shock hazards and requires an insulation system to ensure protection of personnel, shall be verified by the appropriate test and visual inspection to ascertain that insulating capability has been retained before initial use, and at intervals thereafter, as service conditions and applicable standards and instructions require, but in no case shall the interval exceed 3 years. 

Does this mean that voltmeters rated less than a 1000 volts must be tested a different way than what is described in in 250.4?  Also is the frequency 3 years or something else?