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发表于 2017-5-19 10:21
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fasten 发表于 2017-5-19 08:35  6 B, P* D. v- G& I% @7 x# R3 {
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。* x/ w0 j/ E# B; l% k2 r
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
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1.1 These requirements cover electric energy storage systems as defined by this standard for use as( |4 l3 Q- k0 R' K& P; ]5 Q
energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc./ ^0 u: z6 w) q6 w5 L0 [/ }
applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA y$ r0 O* L1 P- `* \
70 or other applicable installation codes." } ~/ \9 I# y, @0 w
1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard
/ |" h& D! j. S. c- efor use in light electric rail (LER) applications and stationary rail applications such as rail substations; n o. k5 ?. e6 J6 L7 b9 r4 M
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UL2054& Z; y) Z, z( e( k' h& `0 H! q
1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)
. N; x. a0 C' u. @3 q. T& \+ x& ?batteries for use as power sources in products. These batteries consist of either a single electrochemical b' t4 V0 j1 h. g# {8 j- R) z
cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical2 A# m b) O# f2 D( r
energy by chemical reaction.- [! U2 o3 b) X
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