|
|
UL自己出的每一个标准都会几乎都有这么一个章节或类似的章节:
' a3 _# o4 P9 _2 l C6 o' n2 h( r% {4 w$ [
X.1 Except as indicated in 4X.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this standard.& X0 u7 w8 ]2 b6 x, l' c
4 r/ s: c& _& n* Q5 S% q' g同时还应该注意标准的某些章节如UL1310:7 L, K: f- _0 v9 A4 O' F9 [. w
: l! I6 k8 d0 F$ |. N12.2 There shall be no components connected between primary and output circuits which result in a conductive connection (see 5.4). If capacitive coupling is provided between primary and output circuits, it shall consist of either:
8 S$ ?% Z, s# i1 {8 \( ia) A capacitor complying with the antenna coupling requirements specified in the Standard for Capacitors and Suppressors for Radio- and Television-Type Appliances, UL 1414; or F3 h; F) ~3 l( s
+ @5 L/ H( M+ \" `( q; F现在UL的一些标准也在做改进,如UL499则开始抛弃Appendix A的传统要求,开始细化到具体要求如:
0 D l( C1 ]! M1 F- \5A.2 Requirements for Components: { i8 k8 U$ E' a: |$ N
Section 5A.2 Added November 30, 20101 A; M% n6 v- _* M1 a& f( ^
5A.2.1 Insulated Wire, Cable and Cords1 s% I# n/ {- N9 ~/ O; g, ^( [% w
5A.2.1.1 A cord set or power supply cord shall comply with the Standard for Cord Sets and Power Supply Cords, UL 817. `4 L! N8 j* o/ h
5A.2.1.2 Flexible cord and cables shall comply with the Standard for Flexible Cords and Cables, UL 62. Flexible cord and cables are considered to fulfill this requirement when preassembled in a cord set or power supply cord complying with Standard for Cord Sets and Power Supply Cords, UL 817.
2 f# [4 p$ N8 H/ ]# m( u6 Z) r5A.2.1.3 Internal wiring composed of insulated conductors shall comply with the Standard for Appliance Wiring Material, UL 758.4 E2 d, i+ U, y5 P( u
......
7 S2 p) w# [) u* ^. X" W/ r6 x% b/ A- u
5A.2.13 Gaskets and Seals
# x+ e0 m0 C$ S' a5A.2.13.1 Gaskets and seals that comply with the Standard for Gaskets and Seals, UL 157, are considered to fulfill the requirements of 33.1.4 and 33.1.5.
! b+ v" v9 E6 m* g$ f$ Q( n5A.2.14 Printed Wiring Boards) W8 z1 B* n ]: L$ p) b" l
5A.2.14.1 Printed wiring boards shall comply with the Standard for Printed-Wiring Boards, UL 796. Unless otherwise specified, the flammability class shall be that specified for insulating materials.
. x/ Q4 D/ E; J4 ]+ a9 H& k' [
; j& h* e' V# ?( ^/ u0 C Z9 ^- \可以看出,其实UL标准对于零部件的具体要求是非常明确的。
% |, q1 }3 e$ B! N* Y1 f4 K |
|