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fasten 发表于 2017-5-19 08:35  - Q- F& {* [4 ^8 H# I% ?
Scope不能看出来区别？
8 l. [! F9 F/ F* f! p# v$ j我们的产品是一个3000W 的BBU 跟PSU 连接在一起，当PSU 通电的时候,PSU 给BBU 充电。当PSU 断电的时候，BBU 给PSU 提供DC，最终输出给系统供电。( O7 t# l# F9 o) `; N+ a
我们纠结到底是用UL1973 还是UL2054 。我觉得是用UL2054 但是客户说要做UL1973
7 \7 j% p4 a! H6 P, DUL1973 B" [* f% U+ b# a9 T' Y
1.1 These requirements cover electric energy storage systems as defined by this standard for use as/ x3 z9 b& R# h8 q( B; o" F- E4 V
energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.# B" n) @ x! j c2 M
applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA8 I1 b, j3 h7 }4 w5 ]9 S' F# i
70 or other applicable installation codes.
. ~+ I& m) C5 P$ E c S. p1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard+ e2 T& n/ n' A5 X# G- u8 H/ l
for use in light electric rail (LER) applications and stationary rail applications such as rail substations
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UL2054
1 q& G% I9 v( G, X7 u5 v6 D1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)
5 J; b1 h5 i! H" h5 Z# @batteries for use as power sources in products. These batteries consist of either a single electrochemical' K0 ?+ W9 O: |$ X1 A
cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical" M% s$ e- D' e" c' j7 F* n
energy by chemical reaction.
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发表于 2017-5-18 17:45
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发表于 2017-5-19 08:35
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