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fasten 发表于 2017-5-19 08:35 
2 V& C3 q4 F' u8 I! LScope不能看出来区别？
" P1 R& `: i! B$ B4 \. i; [0 \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。, }5 U) L) q6 C) Q
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& I# ?6 _/ V+ L) K6 A: ^/ s
UL1973% H0 ^+ X4 p7 f6 U4 A- Y, d' l
1.1 These requirements cover electric energy storage systems as defined by this standard for use as
% u7 f3 D4 r c1 A* v, o: Renergy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.( G" I8 e2 W) T" |, E# G3 y
applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA- D$ ~; l/ }: w1 E7 M
70 or other applicable installation codes.7 o3 A, p3 p; ~* A/ N
1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard8 c, D) p9 B/ Q1 R( k/ z' ^+ A
for use in light electric rail (LER) applications and stationary rail applications such as rail substations
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$ h( @- l# p1 w/ ^" n9 SUL2054
Y5 Y3 [0 L2 ^+ W) f+ h4 }1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)" `" O! v) q% A8 g2 b+ f' x
batteries for use as power sources in products. These batteries consist of either a single electrochemical
. j& v ]2 b& v. K( Ccell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical6 ~' q% a- o+ p+ q Q& H5 h* H
energy by chemical reaction.
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发表于 2017-5-19 08:35
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