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30.2 Bonding conductor
30.2.1 Bonding shall be accomplished by metal-to-metal contact between parts or by a separate bonding
conductor as specified in 30.2.2 – 30.2.4.
30.2.2 A bonding conductor shall be copper, a copper alloy, or other acceptable material.
30.2.3 A splice shall not be employed in a bonding conductor.
30.2.4 A separate bonding conductor shall not be smaller than the conductors supplying a converter.
30.2.5 A separate bonding conductor for an inverter shall have an ampacity rating equal to the total
inverter output.
30.2.5 effective April 13, 1993
PERFORMANCE
31 General
31.1 A representative sample of a converter or inverter shall be subjected to the tests described in
Sections 32 – 52. Unless otherwise specified, all tests are to be conducted at not less than the rated
voltage of the converter or the highest of a rated voltage range, and an ambient temperature of 25°C at
rated frequency. See Table 31.1.
31.1 effective April 13, 1993
Table 31.1
Values of test voltages
Rated voltage Test voltage
110 – 115 120
Between 116 – 219 Rated voltage
220 – 230 240
31.2 The secondary current and voltage are to be measured by using an average-indicating meter.
31.3 Output-current measurements of either half-wave or full-wave rectifier circuits are to be based on the
average current reading.
32 Leakage Current Test
32.1 The leakage current of a cord-connected converter or inverter rated for a nominal 120-volt supply,
when tested in accordance with 32.2 – 32.6 shall not be more than 0.75 milliampere.
32.1 effective April 13, 1993
DECEMBER 14, 1993 UL 458 45
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