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fasten 发表于 2017-5-19 08:35 
0 u7 ], d. e) W$ k3 E3 AScope不能看出来区别？
$ [+ a' G; k- U, G7 v: j7 ~1 [( L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。
3 ?* ? @) d- C8 S( F) ~+ E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UL19739 u6 @) X% f2 f" @% ? x8 [
UL1973# j* r) a, t" B- ?7 U6 D0 Q E. q
1.1 These requirements cover electric energy storage systems as defined by this standard for use as
: \* K8 K& U" @8 _& U, V, M- oenergy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.
9 ^3 U5 j0 f% K0 q0 Qapplications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA
- j# t( b7 _" ] ~6 f/ s70 or other applicable installation codes., z1 ^& m$ M$ }
1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard
$ q6 S: M4 m# m/ Hfor use in light electric rail (LER) applications and stationary rail applications such as rail substations3 E# l% Q8 n: _: h1 X8 t
* Y7 z8 w6 f7 h1 N( h* d5 d1 aUL2054- y) V" p7 Y4 ~5 }8 e, G P! Y# b
1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)
* \' v. h4 Z6 a( y6 lbatteries for use as power sources in products. These batteries consist of either a single electrochemical
1 a4 S* E5 G' ]+ t1 @, F& `; wcell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical( ~& [7 c! s3 \7 N: w
energy by chemical reaction.2 p$ P" y$ }) y; I
4 ~. G7 W7 J" y4 z2 Q* e
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