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楼主，我查了些资料，供你参考。
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A) UL 1838 g, M) z/ w; R# E/ T6 q
1 Scope5 P' A. c7 }9 B+ \7 _& q/ l# V- b
1.1 The requirements in this standard apply to a low-voltage landscape lighting system and components
+ V5 n0 C0 c# R9 O g1 Z' Zthat consist of an isolating type power unit, low voltage cable or flexible cord, and luminaires. The
/ S: o. p& r4 T' y& Iequipment is intended to be installed in accordance with the National Electrical Code, ANSI/NFPA 70.& y1 ?+ \9 v4 s1 J' }0 `" T
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1.6 This standard covers luminaires and low voltage system components intended for use submersed in
+ I/ i. x' d$ r/ m# oor floating on:0 N% A. ~0 B5 m2 G+ y S
a) portable self-contained fountains; and
, ~, s+ u' C a6 pb) ponds and other natural and artificially made body of water within the scope of Article 682
& x" ^. s# Y. h“Natural and Artificially Made Bodies of Water” of the National Electrical Code, NFPA 70.! q& n8 p) u; B
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3 v) j7 V! z9 v" @' s2 s+ G- EB） NFPA 70
# O$ w5 o# J1 d; ~I. General
: T! ~, v/ p5 f- O- L2 v682.1 Scope. This article applies to the installation of electrical wiring for, and equipment in and adjacent to, natural or artificially made bodies of water not covered by other! o+ n. z+ j3 B. z; @1 w
articles in this Code, such as but not limited to aeration
/ C) y) _# O, A7 i# Wponds, fish farm ponds, storm retention basins, treatment0 I$ u: W# M1 {! r
ponds, irrigation (channels) facilities.1 o1 \9 ]# p. G
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3 E- j% T8 i7 B' m ?" U680.1 Scope. The provisions of this article apply to the
+ q# p* ~7 S. T2 r% ?construction and installation of electrical wiring for, and; {/ c! ]9 a# E- W0 C) {3 I
equipment in or adjacent to, all swimming, wading, therapeutic, and decorative pools; fountains; hot tubs; spas; and/ P2 g) H; R9 c: r
hydromassage bathtubs, whether permanently installed or% {, j& o* O3 v! X$ `
storable, and to metallic auxiliary equipment, such as3 k- Z; L* x% a0 Q+ B
pumps, filters, and similar equipment. The term body of
: z3 Y' a( k# p) |water used throughout Part I applies to all bodies of water
) `' d3 `. @& @. ~9 Rcovered in this scope unless otherwise amended.
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从以上信息所看，符合相关要求的低电压户外灯具只能在无人的水体中使用（参考NFPA 682章节），人会进入的水体中的设备要参考680章节，所以估计要使用UL 676。
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另，楼主的灯具是做喷淋测试，喷淋验证的灯具不能浸入水中。
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发表于 2016-7-21 17:16
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