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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。
1 E- X) A: y$ J3 e9 ^笔记本电脑是用于工作场所么？
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% U2 W6 e1 X9 z' |( Z0 k* m7 ?" k+ xElectrical conductors or equipment (See Listing of Specific References under 1910.303 and 1910.307).
6 k$ q' R2 ?% |; d7 [' _7 K* q p1910.303(a)
( I- X" W j: H" I/ f3 B2 X% W) KApproval. 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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& _( F8 b0 L2 t3 W3 Q& c0 B1910.303(b)& [+ T- H7 ?5 {+ R- Z
Examination, installation, and use of equipment -
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( K \( k' N8 J) I! J1910.303(b)(1)/ W) \: `' y4 U; c' x' D1 ~
Examination. 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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1910.303(b)(1)(i)% K' c2 w# U8 A# j+ c
Suitability for installation and use in conformity with the provisions of this subpart;; \$ A/ h& }& a6 D8 y* x7 ]/ K. Q2 }
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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.
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1910.303(b)(1)(ii)6 x, }- e; |! U2 U; U$ E
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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