本帖最后由 H-RH 于 2014-5-23 01:59 编辑 5 B: m! ]% d/ j T$ r
! Z( T" y! @5 a1 Y2 ~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?" 2 `+ a6 [7 l; [2 X
2 _( r w7 D3 d6 Q) ~/ [# z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!
$ ^& U# z" d! c/ ]上网找了半天, 445.20内文如下:
7 E! C8 {7 Y: h2 M D0 ]9 N445.20 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. 8 S4 [$ g$ F* u C7 H
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) : [6 {% N I5 t( y0 G. C" R- [
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另有一个小插曲, 曾经有生产商上诉要把条文改成 : $ i/ j9 ~: N. S1 K
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. ; o9 d9 i) r) u* Y6 q: e( a0 Z
即在 Jan 01, 2015 前生产之发电机可以豁免, 但最终上诉被驳回! |