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通过看1910 303,能确定笔记本电脑 出口美国， NRTL 认证是强制还是自愿么？ 答案是自愿性认证。
( E' H% s3 r7 J0 Z2 t) _笔记本电脑是用于工作场所么？
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Electrical conductors or equipment (See Listing of Specific References under 1910.303 and 1910.307)." v ~) E0 t: g( y
1910.303(a)$ z; K& i1 l* U5 b e
Approval. The conductors and equipment required or permitted by this subpart shall be acceptable only if approved, as defined in § 1910.399.
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3 X* l. s5 `+ t! ^& f( }1910.303(b)
# H( q, t' N. V* @: IExamination, installation, and use of equipment -
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% |* k8 Y( l$ i8 k' W; l' P5 P! C3 D1910.303(b)(1)
0 q5 {! C$ `, L% S$ s, PExamination. Electric equipment shall be free from recognized hazards that are likely to cause death or serious physical harm to employees. Safety of equipment shall be determined using the following considerations:
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0 q0 d( m/ [; V4 r8 h8 I" g E1910.303(b)(1)(i)
$ t d9 N/ P* q& ]+ X, ?Suitability for installation and use in conformity with the provisions of this subpart;* V1 J) s1 g |
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Note to paragraph (b)(1)(i) of this section: Suitability of equipment for an identified purpose may be evidenced by listing or labeling for that identified purpose.5 ^8 H8 Z; J. M& s! @
! G+ u* q+ O- O9 P" \1910.303(b)(1)(ii)( ~$ C% C0 r8 t/ S$ S" {( A' y
Mechanical strength and durability, including, for parts designed to enclose and protect other equipment, the adequacy of the protection thus provided; |
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