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从UL1082上截取的:; D6 F) L% R! n" z; X7 G4 E
29 Resistance of Grounding Test9 c3 \, J0 R: v# y/ p! x
29.1 The resistance between the point of connection of the equipment-grounding means at or within the6 e: T/ Z7 X9 b$ g' ~' D1 O6 S
appliance and any other point in the grounding circuit of the appliance shall not exceed 0.1 ohms.) E5 o# y! K% P& [% O) `
29.2 Compliance with the requirement in 29.1 is to be determined by:4 N& f3 H- b0 P7 f8 |, z
a) A resistance-measuring instrument, or3 t3 q5 k* E% a+ q, I5 d* C3 C
b) Passing an alternating current of at least 25 amperes from a power supply of not more than
6 P% }& B) m$ {; l# }1 N12 volts from the grounding pin of the attachment plug cap to a point in the grounding circuit,. X) D# m" p; h1 X
and then measuring the resulting drop in potential between the two points. The resistance in
3 Y% G* D* \7 g+ S' n( mohms is to be determined by dividing the drop in potential in volts by the current in amperes2 l) V) W! L& I3 f4 |& ^/ L
passing between the two points. |
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