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UL1598对于接地螺丝的扭矩测试是要求用一根12号线缠绕接地螺丝180度再测试的,你可以参考下:# G7 T( M3 d/ e: D( V: w
16.39.1 A 12 AWG (3.3 mm) solid-copper, insulated conductor shall be stripped to a, M9 ?! M, u' s( w; k9 f0 b) W
length of 2.5 cm (1 inch) minimum. The wire shall be wrapped around the screw under: s8 Y# f: O' i) c+ R
the screw head so that it makes a minimum 180?turn. The conductor shall be seated to
0 k. j+ i* ^- X- v$ ffollow any wire guides or dimples provided to align the conductor with the mating
3 A' Y5 k( X+ dsurface. The ground screw shall be tightened with a calibrated torque screwdriver to 1.6
# [- r; [# _& Z) G: q( ~, x5 F1 IN 穖(14 lb-in). |
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