Scope of Testing
Medium Voltage Switchgear
| Type of test/Properties measured/Range of measurement |
Standard specifications/ Equipment/Techniques used |
Dielectric Test on main circuit |
IEC62271-100 Edition 3 2021-07 |
| Dielectric test on auxiliary and control circuit a. Power Frequency withstand voltage – Up to 4.5 kV b. Insulation resistance test – Up to 5 kV / 950 GΩ |
IEC62271-100 Edition 3 2021-07 IEC62271-200 Edition 3 2021-05 IEC62271-102 Edition 2.1 - 2022-04 IEC62271-103 Edition 2 2021-05 IEC62271-105 Edition 3 2021-06 IEC62271-106 Edition 2 2021-04 IEC62271-1 Edition 2.1 2021-10 IEC61869-1 Edition 2 2023-06 IEC61869-2 Edition 1 2012-09 IEC61869-3 Edition 1 2011-07 |
| Measurement of resistance of main circuit | IEC62271-100 Edition 3 2021-07 IEC62271-200 Edition 3 2021-05 IEC62271-102 Edition 2.1 - 2022-04 IEC62271-103 Edition 2 2021-05 IEC62271-105 Edition 3 2021-06 IEC62271-106 Edition 2 2021-04 IEC62271-1 Edition 2.1 2021-10 |
| Temperature rise test Up to 5000 A, 3 phase AC | IEC62271-100 Edition 3 2021-07 IEC62271-200 Edition 3 2021-05 IEC62271-102 Edition 2.1 - 2022-04 IEC62271-103 Edition 2 2021-05 IEC62271-105 Edition 3 2021-06 IEC62271-106 Edition 2 2021-04 IEC62271-1 Edition 2.1 2021-10 IEC61869-1 Edition 2 2023-06 IEC61869-2 Edition 1 2012-09 |
| Verification of Degree of protection Up to IP55 | IEC 60529 Edition 2.2 2013-08 IEC62271-200 Edition 3 2021-05 IEC62271-1 Edition 2.1 2021-10 |
| Mechanical operation test at ambient temperature on circuit breaker, switch and switch-fuse. Mechanical endurance test on disconnector, earthing switch and vacuum contactor |
IEC62271-100 Edition 3 2021-07 IEC62271-102 Edition 2.1 - 2022-04 IEC62271-103 Edition 2 2021-05 IEC62271-105 Edition 3 2021-06 IEC62271-106 Edition 2 2021-04 IEC62271-1 Edition 2.1 2021-10 |
| Test to prove the satisfactory operation of switchgear, including switching device and removable parts – Mechanical operation |
IEC62271-200 Edition 3 2021-05 IEC62271-1 Edition 2.1 2021-10 |
| Tests to prove the strength of gas filled compartment up to 6 bar gauge pressure |
IEC62271-200 Edition 3 2021-05 IEC62271-1 Edition 2.1 2021-10 |
| Tightness test of gas filled switchgear | IEC62271-200 Edition 3 2021-05 IEC62271-1 Edition 2.1 2021-10 |
| Partial discharge test | IEC62271-200 Edition 3 2021-05 IEC62271-1 Edition 2.1 2021-10 |
| Electrical continuity of earthed metallic parts test | IEC62271-1 Edition 2.1 2021-10 |
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