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fasten 发表于 2017-5-19 08:35  , F: P2 V8 f* @, R4 b8 Z: X/ {1 L
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。
8 A$ P+ ?8 h* Q6 K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
9 v3 Z" X6 f5 X+ ~# u8 DUL1973
' K$ X4 m Q. M) Z1.1 These requirements cover electric energy storage systems as defined by this standard for use as
9 ~* e9 y, g) b, Wenergy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.
% p9 k0 l$ t9 g5 Y( j% h4 ~applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA) ]6 i% x: `' Z4 Y
70 or other applicable installation codes.
; s/ ~, \2 ?" M( _ R. l" |" Q* j2 D1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard
5 E! v, d1 K: C" zfor use in light electric rail (LER) applications and stationary rail applications such as rail substations
/ {+ [& b0 L/ L4 }! F" c; e" b4 W. Q. A% e1 t$ ^% d# D5 k/ `/ b! _
UL2054
) Y: q2 W6 F8 c) ]; B. o! P8 b. }1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)
5 y* `4 N" ], u6 F% D% Kbatteries for use as power sources in products. These batteries consist of either a single electrochemical
) P% P3 b" M0 w% tcell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical
' x; X* w, p K( Y( f; Kenergy by chemical reaction.
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发表于 2017-5-18 17:45
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发表于 2017-5-19 08:35
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