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bisiwuyi 发表于 2012-9-9 20:23 $ W0 I* y. C5 n) d/ ~
我理解你的回复仅说明在标准里面有component of a product 的说明,即零部件可以从标准里面找到,但是关于 ...
3 v- q% u8 G( F; g0 z( V一方面是你的帖子含含糊糊,另一方面做认证的必须要举一反三才对,哪个标准都有Scope,Scope就是定义标准适用范围。换句话说就是什么产品应该满足这个标准,如UL499:
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5 k* }4 S* X# V, [) P1 Scope
2 A9 [5 T* j! u1.1 These requirements cover heating appliances rated at 600 V or less for use in unclassified locations6 I8 i% k, i+ e6 E! e8 V" Y3 q
in accordance with the National Electrical Code (NEC), ANSI/NFPA 70.
+ y0 y' y/ V) }1.2 These requirements do not cover electric heating equipment or appliances that are covered by
. g- U( I- N8 p, Jindividual requirements that are separate from this Standard.
, i* E* A' C4 ?# \! n& T4 I% F1.3 For the purposes of this Standard, a heating appliance is defined as an electrically energized product
& }& K+ s+ q, Q0 ]0 \that directly or indirectly generates heat to perform its intended function.
3 N5 ~4 c: t8 a% h9 b9 D1.4 These requirements also cover electrically energized products that generate steam for other than, q3 H7 O% n2 p# @7 g/ \0 ?
space heating purposes and have an electrical power rating of 15 kW or less per steam generating vessel.
9 O0 i; }9 H7 E) {2 G; z1.5 Steam generating products of the type described in 1.4 having an electrical input power rating of more
H. ]1 W/ `# m, z/ Z; c, \than 15 kW per steam generating vessel are to be evaluated by the requirements in the Standard for4 M" f, [7 t. z4 o0 z# V* Y2 ], S
Heating, Water Supply, and Power Boilers – Electric, UL 834.' m7 y( I+ d8 }, c
1.6 Each steam generating vessel in a multi-vessel unit shall comply with these requirements. The unit" [( ^! p. C/ i6 i$ j- x. d
shall also be provided with the marking in 47.37. |
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