Defines test requirements for dielectric tests with direct voltages, alternating voltages and impulse voltages and tests with impulse current. Applicable only to tests on equipment having its highest voltage greater than 1 kV. It is not intended to be used for electromagnetic compatibility tests on electric or electronic equipment.Cross References:BS 358BS 923:Part 2BS 923:Part 3BS 923:Part 4BS 4828IEC 507