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怎么理解下面的意思(UL498-2001比较老了)2 d) L4 b9 c( v: v
(8 Insulating Materials)4 l- L; H# b7 C- {9 E) _% A& c
8.3 Electrical properties(条款里也有对绝缘材料厚度的要求)+ @( g' ~# N$ I! h9 { I
8.4 Thermal properties
# e f ^ c8 f6 }5 }/ \8.4.1 A polymeric material used for electrical insulation or enclosure of live parts shall have the relative
+ W1 |0 N: M0 Jthermal index ratings shown in Table 8.2 for the specific application of the insulating material. For" L) h& |- g, @+ |, g8 R) U! f
materials with other than VTM flammability classifications, the material shall be evaluated using the1 _* T8 ?0 c0 y8 x/ q# N
specimen thickness employed in the end product or nominal 1/8 inch (3.2 mm) thickness, whichever is/ ?7 C( ~6 N. o7 e1 K
greater.! S6 {+ j8 U* E, [- w
以上条款的绝缘材料的厚度要求是否对插头外围尺寸起限制作用.或者只是对材料测试时的一种要求. |
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