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SVT 18AWG/2C CORD- o# f) g+ e9 B) m
% `8 Z7 z9 t: u6 c% l; C! A在UL62----2006版里面.1 U6 o# m( G/ K9 S
Table 18里面没有说SVT这种型号呀~都是SPT,NISPT等类型.
/ G. S' [+ v2 L; ^SVT的型号的结构要参照Table 20
# f9 B) {6 ~8 `: l3 f3 G外被的厚度参照4.1.6条款.总厚度要求1.52mm,也就是单边最小平均厚度0.76mm
$ N1 u1 v h) s0 m, l在Table 20里.: v, p I, v* z% @
Minimum and average thickness of jacket , Table General ,Clause 5 Q L5 u0 y1 C/ j4 i
有说明参照54 4.1.64 |7 k; c# ]9 O& _
这里的54指的是Table 54% W- K# H& x& M5 U8 o3 _* G
在Table 54里,有说明SVT型号的Minimum average thickness 0.76$ y: K$ o+ F) @
Minimum thickness at any point 0.61
& m7 |4 i: B. D7 z8 R, [=================================, o- q5 q0 H; _$ O7 A1 ^
4.1.6 Jackets$ v. C+ W8 W) i/ t9 I
4.1.6.1 General
$ o0 D9 E% M h6 ?8 ^If a jacket is required, the conductor assembly of the cord or cable shall be covered by and properly; w* w$ f0 f3 I0 u' ?( D- f
centered within the jacket. The jacket shall be applied directly to the conductor assembly or binder, if one5 V$ u6 U( d* c, I$ E' z% G
is used, and shall fill all the spaces, if any, around the conductor assembly.
2 r1 x7 r. T; ?: P6 H/ sJackets with a total thickness of 1.52 mm (0.060 in) and greater shall be permitted to have a reinforcement
" p3 ]' ^* O* S c: _0 Dconsisting of an open weave or the like, placed between adjacent layers of the same class, that shall not
0 F, Q" B- I& x9 w* k/ E' L( dbe readily separable. Jackets with a total thickness of 2.41 mm (0.095 in) and greater shall be permitted. T- M0 `% b: t3 c* q: w2 t' x
to consist of separable or non-separable adjacent layers of the same class. If separable, the outside layer
7 {( j# Z( R n9 d L5 K) Hshall be at least 50% of the total thickness measured. If applied in more than one layer, both layers shall
* n2 R! v5 e! F0 a# B% ^be of the same class. Adjacent layers shall not be readily separable when the total jacket thickness is less; q; r( b8 z" Q% `) ^6 {" F$ _$ O
than 2.41 mm (0.095 in)." z# p& ?5 x; [* W( O: w
All jackets shall provide an essentially circular cross-section for the finished cord or cable, except for Type
/ y: {* X, Y/ o8 aDRTc that shall be used with a moulded-on male plug only and for non-integral parallel cords. The classes7 ~# c5 x" ?/ v: w1 a9 x& e0 \
of jacket provided in this Standard are shown in Table 11. |
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