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请大家注意标准的意思,不要断章取义:
$ k* v& V% S- M: ^1) 首先看标准的这句"30.1 External parts of non-metallic material, parts of insulating material supporting live parts including connections, and parts of thermoplastic material providing supplementary insulation or reinforced insulation,"
" w6 e; |6 l" D8 R& u k$ @% R) O要注意前面这句"30.1 External parts of non-metallic material"- g2 }# z$ {" o8 K, u" f0 w" q: S
意思是"对于非金属材料制成的外部零件" 它和后面的两种材料是平行的.并未包含在"支撑带电部件的的绝缘材料"; "起附加绝缘和加强绝缘的热塑性材料" 里面..
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8 g. S& x% ?2 B! j: v1 j; i2) 然后根据yyfyqzy 对其产品的描述, 其洗脚盆材料既不是"支撑带电部件的的绝缘材料" , 也不是"起附加绝缘和加强绝缘的热塑性材料".# K, f# x5 o) j7 N
" k, o/ ^0 ]1 x$ k 本人觉得, 工程师对洗脚盆材料做球压测试所取的温度,应该是根据其在11章做温升时, 所测得的" 紧贴发热丝处的温度"再加上烘箱的温度.
1 t8 j( ~; Y8 I$ f7 q这样才符合标准" The test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise determined during the test of clause 11, but it shall be at least
# m; X" k8 ^7 H5 i– 75 °C ± 2 °C, for external parts" |
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