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带插头和尾插或连接器的插头电源线,习惯叫延长线,电源线组件等,专业术语叫Cord Set(电线组件)。作为电气连接安全产品,必须要有电气强度测试(耐压测试),几个样品我们可以放到实验室依插头或连接器标准测试。但是,批量生产如何进行例行测试,打多少高压,测试时间有标准依据吗,如果一次测试时间为60S(1分钟)的时间等不起。这个问题一直有厂家,购买商在咨询这些问题,今天,安规仪器网工程师就电线组件的例行测试作详细地解释.特别说明。
注意:此标准要求仅适用于采用IEC标准之国家。不适用于北美,台湾,日本标准等电源线。
依据标准
IEC/EN 60799-1998, GB15934-2008
ELECTRICAL ACCESSORIES--CORD SETS AND INTERCONNECTION CORD SETS.
Annex A:Routine tests for factory-wired cord sets and interconnection cord sets related to safety (protection against electric shock and correct polarity)
GB15934-2008 电气附件. 电线组件和互联电线组件(等同采用IEC/EN 60799)
附录A:工厂接线的电线组件和互连电线组件安全性例行试验(防触电保护和正确极性)
适用类型:
A.1 General
All factory-wired cord sets and interconnection cord sets shall be subjected to the following tests, as appropriate.
Table at the Annex A for the IEC/EN 60799-1998
A.1 附录1
适用时,所有工厂接线的电线组件和互连电线组件应经受下列试验。
两极或三极的电线组件和互连电线组件,也就是两个插销的和三个插销的电源线组件(头+尾)的都要测试。
附录表 请见GB15934-2008标准
测试要求
提示:如对IEC/EN 60799-1998标准理解有难度,请参考GB15934-2008,下载地址:
http://www.ag17.wang/download/
A.2 Polarized systems; phase (L) and neutral (N) – Correct connection
A.2 极性系统;L极/相线和N极/中线---正确连接
For polarized systems the test shall be made using safety extra-low voltage SELV applied for a period of not less than 2 s between the L and N pin or contact and the corresponding L and N pin or contact at each end of the cord set or interconnection cord set.
NOTE – The period of 2 s may be reduced to not less than 1 s on test equipment with automatic timing.
Other suitable tests may be used.
Polarity shall be correct.
A.3 Earth (E) continuity
A.3 E极/接地连续性
The test shall be made using SELV applied for a period of not less than 2 s between the corresponding E pin or contact of the accessory at each end of the cord set or interconnection
cord set.
NOTE – The period of 2 s may be reduced to not less than 1 s on test equipment with automatic timing.
Other suitable tests may be used.
Continuity shall be present.
A.4 Short circuit/wrong connection and reduction in creepage distance and clearance L or N to E
A.4 短路/错接和L极或N极与E极的爬电距离和间隙的减少
The test shall be made between the L and N conductors and the E conductor
– by applying at the supply end, i.e. plug, an a.c. voltage of 2 000 V ± 200 V, 50 Hz or 60 Hz
for a period of not less than 2 s,
NOTE – The period of 2 s may be reduced to not less than 1 s on test equipment with automatic timing.
or
– by an impulse voltage test using 1,2/50 µs wave form, 4 kV peak value, three impulses for
each pole, with intervals of not less than 1 s, the test voltage being applied at the supply
end, i.e. plug or plug connector.
The L and N conductors may be connected together for this test.
No flashover shall occur.
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