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fasten 发表于 2017-5-19 08:35 
; J# |, J6 w$ \Scope不能看出来区别？
/ a w0 o7 o' N' A% e+ N {" V* R2 C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。7 G7 n( v- f, V8 {3 N) {
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
5 o ~" }) J8 E% m" e uUL1973$ i% V" ?$ v2 G. X' Z+ G
1.1 These requirements cover electric energy storage systems as defined by this standard for use as, Z d6 E0 ?: P0 g$ c( y6 s$ |
energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.9 w0 M5 t5 J# k( U D( ~$ H
applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA
- V8 O- s9 f$ T2 n70 or other applicable installation codes./ n7 a" [1 O0 R) q( y
1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard: o: w: d3 X+ @6 W m: M
for use in light electric rail (LER) applications and stationary rail applications such as rail substations0 I9 {+ Z: p# m& d5 o+ C# u4 ~
, ~/ {- d8 h$ p5 q! hUL2054( ~0 @4 P0 C# f; S3 v8 T: M& `. c
1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable): L4 r+ z( i8 P) i# L( o7 o
batteries for use as power sources in products. These batteries consist of either a single electrochemical& o5 I3 j* X0 D
cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical' }# E" H0 K E" n
energy by chemical reaction.8 j8 d6 r; r+ m4 n
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