本帖最后由 H-RH 于 2014-5-23 01:59 编辑
! U2 r4 W9 d& T7 N V0 ~. Z. D
- Y$ A3 s0 f8 v9 l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?" $ W$ u9 j4 y c' F' s0 u
8 [$ S& e- C. H* w& h
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! ' V! g* i- u# B3 P
上网找了半天, 445.20内文如下: $ Z7 ^: `+ @, z% M
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.
) W; P" q% g- c# x2 `3 ~$ b. q0 n* f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)
! b' G" p! J' E |! K
" ?9 c+ u9 n8 v }
7 w8 T6 V# [, t4 B1 }另有一个小插曲, 曾经有生产商上诉要把条文改成 :
9 B. c- x( M- z L7 z1 W' D445.20 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.
1 m$ Y4 D* e5 c; l: n8 c" S即在 Jan 01, 2015 前生产之发电机可以豁免, 但最终上诉被驳回! |