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fasten 发表于 2017-5-19 08:35  ) U T$ R ?6 I
Scope不能看出来区别？
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。* n- x) q* X" w# L- x, ]
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
- F, p S9 n2 m: u! MUL1973
8 J9 i4 n. \* T$ U: L3 n1.1 These requirements cover electric energy storage systems as defined by this standard for use as
8 {& q: N8 U0 menergy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.
* l, H$ @3 R# D# ]applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA
4 d3 J: o# i J. K& @/ ]( V0 r70 or other applicable installation codes.: d0 y1 d. S# t0 T& |; L
1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard
; c0 Y$ |, @" S" s! t4 rfor use in light electric rail (LER) applications and stationary rail applications such as rail substations4 j2 x0 m& \$ |
8 Y" q/ x% C* V$ t7 E. vUL2054 O9 Q* j' n+ d3 m& O9 ^2 c
1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)
" n3 b" B7 x: b. Dbatteries for use as power sources in products. These batteries consist of either a single electrochemical X2 N6 ]( n _9 L, d3 q" E- X
cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical
" W* Q& `1 _0 ?3 k. ]+ [8 r: eenergy by chemical reaction.
+ ?9 Z# G5 {: t. O( r! g1 N* Y( X7 h
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