本帖最后由 H-RH 于 2014-5-23 01:59 编辑
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8 k0 u! \ _9 h6 g笔者内文意思大致如下: "买了一部 8kW 发电机, 附带了一条伸延电线, 但这款电线违反了最新美国条例, 究竟这个产品是否有 UL 认证?" 6 q0 ^: h: j7 l0 P- D5 z
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首先, 内文所指违反之条例是 NEC 445.20, 即 NFPA 70 之 Section 445.20! 很不幸, 笔者所指的 NFPA 70 Section 445.20 是 2014 版之新增, 安规网内之 2011 版是没有的!
! D: ~/ W7 J1 D! u9 H& A5 }( r" y上网找了半天, 445.20内文如下:
+ [" w! S G$ u/ K445.20 Ground-Fault Circuit Interrupter Protection for Receptacles on 15 kW or Smaller, Portable Generators. All 125-volt, single-phase, 15-and 20 ampere receptacle outlets, that are a part of a 15 kW or smaller, portable generator, either shall have ground fault circuit interrupter protection for personnel integral to the generator or receptacle, or shall not be available for use when the 125/250 volt locking-type receptacle is in use. If the generator does not have a 125/250 volt locking-type receptacle, this requirement shall not apply. ! C2 {2 y3 W5 U4 ?6 N
由于笔者没有清楚说明是伸延电线什么不符合条例, 但本人估计是没有 GFCI (Ground Fault Circuit Interrupter)
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2 i/ }7 n, ^% H Z另有一个小插曲, 曾经有生产商上诉要把条文改成 : + s2 ^* R0 {# `0 S4 q
445.20 Ground-Fault Circuit Interrupter Protection for Receptacles on 15 kW or Smaller, Portable Generators. All 125-volt, single-phase, 15-and 20 ampere receptacle outlets, that are a part of a 15 kW or smaller, portable generator, either shall have ground fault circuit interrupter protection for personnel integral to the generator or receptacle, or shall not be available for use when the 125/250 volt locking-type receptacle is in use. If the generator does not have a 125/250 volt locking-type receptacle or was manufactured or remanufactured prior to January 1, 2015, this requirement shall not apply. ! D) b# q9 @; n+ E
即在 Jan 01, 2015 前生产之发电机可以豁免, 但最终上诉被驳回! |