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fasten 发表于 2017-5-19 08:35 
9 _2 B v6 _7 i' g( C3 CScope不能看出来区别？
" j" w6 G, }! l/ x8 J @+ {3 @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。: `* X4 o/ g/ w; {. g
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
1 q7 u4 c N: U. Q+ t* e5 g! P' N( ]UL1973
: {" I6 P2 K" J& t" y# E% O+ s1.1 These requirements cover electric energy storage systems as defined by this standard for use as. V! o/ f. m% `5 w" E$ |
energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.
* M2 F/ B! E' q$ S7 G# d! Xapplications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA
' s6 }1 `( g6 d. i1 s70 or other applicable installation codes.
- ], E) \1 A- T; W/ \1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard- y- s3 V' `, V2 g' ?. E& N! b
for use in light electric rail (LER) applications and stationary rail applications such as rail substations' {* p" z% i% G: q
0 F4 O, d5 _6 |* C0 F% NUL2054+ K# ^7 n& {; M5 a
1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)& ?; Z3 v6 X. l: u4 s2 U/ V; F
batteries for use as power sources in products. These batteries consist of either a single electrochemical
5 O% N" e y/ `1 y' s$ M t4 Rcell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical; Y( w0 T( R/ h( R
energy by chemical reaction.
) C* K- g [4 _1 s) i/ B0 _" A1 p( |7 X/ K/ e! f( _
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发表于 2017-5-19 08:35
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