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fasten 发表于 2017-5-19 08:35 2 ~/ d" F0 \( D4 E5 ^/ s7 G
Scope不能看出来区别? # W! l( {) M) Z! b' ?- k
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 {4 L) q$ J: _0 [
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+ w. Y e' G8 v! p( ?& l
UL1973
% q$ O. L+ [) w/ F: } E1.1 These requirements cover electric energy storage systems as defined by this standard for use as
7 @; V2 E2 J& J! k0 ]+ Fenergy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.
; @9 Y. i6 Y% W& c" V% Kapplications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA
2 x" F! C; r2 M: Q. N! l70 or other applicable installation codes.
: S1 a4 r. Y! z) L0 g1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard+ T7 O" u9 @! g: J& b% J6 ]
for use in light electric rail (LER) applications and stationary rail applications such as rail substations
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* e! [, T$ x" c9 S1 e6 CUL2054
4 Y }0 k& O. `/ v. `& h1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)+ ~+ p. P" [4 i. `$ ?
batteries for use as power sources in products. These batteries consist of either a single electrochemical& K1 `' n' O* a v q6 L) d
cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical1 _& Z& T. V2 D
energy by chemical reaction.2 {$ L. X. | d7 O r
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