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UL1598 16.15.2 Where more than one support is provided, the load shall be distributed as follows:) Z# R8 B' i0 V. R2 Q7 c8 D- U3 r
(a) where the parts supported are no more than 11.3 kg (25 lb), the full load shall be applied to0 j& c5 f/ k3 f! b
each support; or0 A4 I+ R' }' W6 c) J
(b) where the parts supported are more than 11.3 kg (25 lb), the distribution of the load shall- k+ o- n4 ?# Q+ u J$ A
be similar to that encountered in the field.8 Q7 A0 ]: g0 p& }2 [8 z
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这两点是什么意思1 h8 w$ f- o* Z% P9 r7 v0 v W
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