- Standard No.
- GB/T 3048.5-2007
- Language
- Chinese, Available in English version
- Release Date
- 2007
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
-
GB/T 3048.5-2007
- Replace
-
GB/T 3048.6-1994
GB/T 3048.5-1994
- Scope
- This part of GB/T 3048 specifies the terms and definitions, test equipment, test preparation, test procedures, test results and calculations, precautions and test records for testing insulation resistance by DC comparison method and voltage-current method. This part is applicable to testing the insulation resistance of wires and cables, including DC comparison method and voltage-current method: the measurement range of DC comparison method is (105~2×1015) Ω; voltage-current method The measurement range of the method is (104~1016)Ω; the measurement voltage is generally (100~500)V. The voltage-current method can also be called "megger method" if the measured voltage and current are directly expressed as resistance in the same instrument. This section should be used together with GB/T 3048.1.
GB/T 3048.5-2007 Referenced Document
- GB/T 2900.5-2002 Electrotechnical terminology Insulating solids,liquids and gases
- GB/T 3048.1 Test methods for electrical properties of electric cables and wires.Part 1: General
GB/T 3048.5-2007 history
- 2007 GB/T 3048.5-2007 Test methods for electrical properties of electric cables and wires.Part 5: Test of insulation resistance
- 1994 GB/T 3048.5-1994 Test methods for determining electrical properties of electric cables and wires.Determining insulation resistance.Comparison-galvanometer method
GB/T 3048.5-2007 Test methods for electrical properties of electric cables and wires.Part 5: Test of insulation resistance has been changed from GB/T 3048.6-1994 Test methods for determining electrical properties of electric cables and wires.Determining insulation resistance.Voltmeter-ammeter method.