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范围有提到是L和N绝缘插脚的。This part of BS 1363 specifies requirements for 13 A fused plugs having insulating sleeves on line and neutral pins4 _8 s( ~3 M% \% x y! [# d5 B2 B
从这里也看到地极是黄铜的3.23 insulated shutter opening device (ISOD) protrusion from the engagement surface of the plug, in place of a brass earth pin, made of insulating material having dimensions similar to those of a brass earth pin1 f$ g$ G+ a/ o' p, D6 G
从尺寸图,地极也明显区别于L和N极 Figure 4a Dimensions and disposition of pins
$ E! _$ X: A, u; G* b0 C: @2 a5 a |
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