Question
Download Solution PDFWhich among the given is the insulation resistance test voltage required for equipment running on a maximum of 600 volts?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- All the given test voltages in the question except 1000 V are less than the equipment maximum voltage of 600 V.
- Hence the insulation resistance test voltage required for equipment running on a maximum of 600 volts is 1000 V.
- The test voltages are usually of order 500, 1000, or 2500 V are generated by the hand-driven generator.
- The insulation resistance test is an electrical test that uses a certain type and level of voltage to measure insulation resistance in Ohms.
- The table below shows the required test voltage and the minimum required resistance in accordance with BS 7671.
|
Normal circuit voltage |
Test voltage |
Minimum resistance |
|
Between 0 V to 50 V AC |
250 V DC |
0.5 MΩ |
|
Between 50 V to 500 V AC |
500 V DC |
1 MΩ |
|
Between 500 V to 1000 V AC |
1000 V DC |
1 MΩ |
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