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关于SPT-1的要求,参考UL1598以下条款:/ u# _; I x! X) Q, l
6.13.3.2 The following conductors specified in Table 6.9.1 (CAN) or 6.9.2 (USA) shall be permitted to be8 b! q' Z, D; x( N
used without additional mechanical protection:
8 ~+ a1 ?' d5 ]; x# E(a) flexible cord with insulation thickness equal to or greater than Type SPT-2;/ f: U1 G: r' P7 \, y$ X" Q
(b) flexible cord with insulation thickness equal to or greater than Type SPT-1, routed through
: s& c! ]) ~5 l: o' b% C: T( @the chain of a chain pendant luminaire; or! T# X; E4 j& `" G9 e3 U. R
(c) other conductors of minimum insulation thickness 0.80 mm (0.032 in), routed through the
& K! ~4 S+ s& R. c: ~chain of a chain pendant luminaire., E- y/ z. k. b f4 g
20288的要求,参考UL1574以下条款:
9 k& l: C. u% Z& U40 Enclosures
$ F/ K2 S; A0 S0 j1 v# L; [40.1 All splices, components, wires, and leads shall be enclosed in material that complies with the
4 P x" | C# b0 f1 d* Prequirements in 40.2.
, f8 A4 N2 A* b% r$ m1 JException No. 1: The contact blades of an adaptor need not be enclosed.
( e+ \9 z8 U2 P' Q0 _% `- aException No. 2: Wiring need not be enclosed if it consists of:/ }5 c& E7 h2 w: M% s. ^/ F' ?4 S* ]
a) Leads within a single 0.020 inch (0.51 mm)-thick glass fiber sleeve;
" o3 c% t: h8 G4 t" I0 Fb) AWM Style 20288;
( i/ J1 p2 R) \c) Flexible cord with insulation equal to or greater than Type SPT-2; or5 b6 h7 I9 t/ h- ?: p w: b
d) The equivalent. |
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