Question
Download Solution PDFWhat is the minimum resistance required in insulation test voltage is 500 V DC accordance with BS 7671?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFInsulation resistance
The resistance between electrically insulated parts, such as charged metal parts and uncharged metal parts, or the control output and the operation circuits is known as the insulation resistance.
According to BS 7671, insulation resistance should be approximately one megohm for every 1000 volts of operating voltage, with a one megohm minimum.
Thus, the minimum resistance required in insulation test voltage for 500 V is 1 MΩ.
The insulation resistance is measured by the megger circuit.
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