本帖最后由 H-RH 于 2014-5-23 01:59 编辑
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+ g- r1 K+ V6 L1 u" l9 f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?" + r, f: {9 a) l% i" {' L- X4 _
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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!
# Y! K9 z$ C7 M8 x上网找了半天, 445.20内文如下: - Y2 H+ J3 L( S& ~
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, this requirement shall not apply. % e" A1 L, _+ Y/ ^6 ^7 I
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) : S& y# p( |5 u. L/ B8 M
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. g! Q# b7 V( ? ^7 ^: d另有一个小插曲, 曾经有生产商上诉要把条文改成 :
j9 b2 n3 C- L }( n( b445.20 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.
( s/ z& Q! f& z& h即在 Jan 01, 2015 前生产之发电机可以豁免, 但最终上诉被驳回! |