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fasten 发表于 2017-5-19 08:35 
5 E! T) P0 m0 [/ |- |Scope不能看出来区别？
& {/ k7 R! T% A+ c8 j1 X; R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。
2 ~( B4 K0 D, M1 N+ D6 t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! j6 R! P- N) v( i2 d: y, v, G8 n
UL1973, ^2 n3 i! n4 b) Z M+ w" q
1.1 These requirements cover electric energy storage systems as defined by this standard for use as- B6 L6 J+ \; b/ ~
energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.9 A3 B6 O: f. V' T. `* @7 }( N
applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA& b: R( D7 L: A9 T& R
70 or other applicable installation codes.
~1 Y7 p. i* J9 n9 r! [; s1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard
7 M- o, Z$ v$ L2 qfor use in light electric rail (LER) applications and stationary rail applications such as rail substations
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# i, e" J2 }( jUL2054
! r$ l6 A* T' R4 s5 i5 c. q1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)
3 h" t6 n, s8 `1 w, s; Nbatteries for use as power sources in products. These batteries consist of either a single electrochemical5 u b, r# c y1 i4 v, L
cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical, K, C0 A2 R. m
energy by chemical reaction.$ h% C* y% g V* a9 @
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发表于 2017-5-18 17:45
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