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29.3 Modification:
! `, ~7 g- b9 J0 Z: B7 x( a( |Mica in thin sheet form may be used
: o" ~: V' H" B0 q2 o– for supplementary insulation, if there are at least six layers, provided that any three
( B/ a, N4 E+ d3 N) xlayers together withstand the electric strength test of 16.3 for supplementary insulation;+ f/ Z+ J, G a% l/ c
– for reinforced insulation, if there are at least ten layers, provided that any five layers
7 F/ _2 |5 ]9 w) Z7 B7 Z% }/ V7 J; v( ltogether withstand the electric strength test of 16.3 for reinforced insulation.2 Q- l$ {6 l$ U
29.3 修改:
! U% a6 |# f* N薄片形式的云母可用于:
4 |' I# T; P, Q$ k }1 D% B附加绝缘,如果至少有6层云母片且任何3层一起能经受住16.3为附加绝缘规定的电气强度试验;$ G; H3 [$ w! o+ n* N4 P0 O9 j
加强绝缘,如果至少有10层云母片且任何5层一起能经受住16. 3为附加绝缘规定的电气强度试验。 |
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