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关于SPT-1的要求,参考UL1598以下条款:
5 h& ^% _5 [, d% ^/ a6.13.3.2 The following conductors specified in Table 6.9.1 (CAN) or 6.9.2 (USA) shall be permitted to be
4 O2 ^5 b: y' Rused without additional mechanical protection:& w' z; G0 Y# f
(a) flexible cord with insulation thickness equal to or greater than Type SPT-2;1 l9 p( Y' k. _2 S
(b) flexible cord with insulation thickness equal to or greater than Type SPT-1, routed through
0 J3 |7 _+ b& v) ~- Hthe chain of a chain pendant luminaire; or
5 A2 [/ p; k! X/ B(c) other conductors of minimum insulation thickness 0.80 mm (0.032 in), routed through the6 S+ i3 ]* u/ F$ O
chain of a chain pendant luminaire.
( O2 g, M* q: j0 x20288的要求,参考UL1574以下条款:/ t; }8 F+ g2 z4 o
40 Enclosures
2 L$ y6 W1 H7 ]: |2 l' \0 ]3 `40.1 All splices, components, wires, and leads shall be enclosed in material that complies with the
( S. u+ C- H2 S3 ^3 P, Grequirements in 40.2.7 B/ t, `4 A/ ]% I; V# `
Exception No. 1: The contact blades of an adaptor need not be enclosed.5 ]# ^8 _( C4 E+ e9 v
Exception No. 2: Wiring need not be enclosed if it consists of:
* X% f8 q3 ~+ b& m: @- e) ra) Leads within a single 0.020 inch (0.51 mm)-thick glass fiber sleeve;* H4 M- v+ u3 D' w7 B; r- K7 A# ]
b) AWM Style 20288;8 e+ x# u" ^9 E5 t8 A& y1 h/ k
c) Flexible cord with insulation equal to or greater than Type SPT-2; or
3 U. `! S# |: a; y5 L9 Kd) The equivalent. |
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