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johnmark 发表于 2016-8-15 17:16 
' B6 _) m }6 u7 h! R2 G/ MUL 498对插头有测试拨出力的要求吗？今年才接触UL产品上班时间没有太多的时间看标准，UL标准觉得很不好看， ...
1 o" J, L) W! Z91 Retention of Plugs Tests# L* E& {( ^- Z% O
91.1 The contacts of a 1-15R, 5-15R, 5-20R, 6-15R or 6-20R configuration cord connector shall retain an
$ p; ^& h$ H4 j& ]0 ^( Fattachment plug so that a force greater than 3 lbf (13 N) is required to withdraw the plug when tested as/ p0 @6 D" X+ t
described in this section.
, t' H+ ~0 f8 Y+ n/ v3 s& T$ [Exception: A cord connector that has provision for locking the plug in place after the blades have been
# w& E( K! l( ?) o+ d. oinserted in the female contacts (such as a rotating collar) is not required to be subjected to this test.
2 S& u2 x+ N3 \ R+ ^) J7 J91.2 A cord connector with a spring-activated latching mechanism shall be subjected to this test with its, R. M, M% T5 A. x/ g# x! s, h1 R
mechanism defeated. See 90.2.$ N* ~% j }- r( K ~7 d7 {
91.3 Each of six devices is to be subjected to ten conditioning cycles of insertion and withdrawal of a- N D% |# ^" s! q @' K( r
standard solid-blade attachment plug that has American National Standard detent holes in accordance" d2 A$ ]% O5 [
with Wiring Devices – Dimensional Specifications, ANSI/NEMA WD6, in rigidly mounted blades, following+ D1 y% M- I' ?! V% ]
which the plug is to be fully reinserted into the device. The mating plugs are to have the configuration W- ?: s# G! A4 d
indicated in Table 91.1. A pull of 3 lbf (13 N) in a direction perpendicular to the plane of the face of the
. Y8 J& r( `! I9 C8 pcord connector and tending to withdraw the plug from the device is then to be applied to the plug for 1
# ]4 l/ E6 \! Aminute. The displacement of the plug shall not be greater than 0.079 inch (2 mm).
) s0 L9 _! \" s7 Y0 P) rException: Connectors may instead be subjected to the Retention of Blades Test, Section 109.2 and) J% n' k. q0 N4 ?" D
109.3 (conditioning and 3 lb retention).
8 @( x8 O7 S+ X+ e/ [) n91.3 revised November 16, 2012$ c7 o1 Z8 A9 j0 z9 b
3 ~; p1 T1 n5 V. R' ]4 {. M2 r6 ~
109 Retention of Blades Test
% I7 Q6 M* c0 Q, { O' U, ~109.1 A flush or self-contained receptacle having a 5-15R, 5-20R, 6-15R, or 6-20R configuration shall be+ W" B1 u, X) Z( {2 s! e
subjected to the retention of blades test described in this Section.6 y2 N( N& O# Y4 F. G
Exception: A receptacle having a 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R configuration and not of the
* ~* _, q, p6 f" L9 z9 q7 h# K$ mflush or self-contained type may instead be subjected to the Retention of Plugs Test, Section 114.' R+ w: K [$ F) Y& J5 a( z
109.1 revised November 16, 20123 U6 N' P2 ?9 z; w5 _) g9 S! A
109.2 Receptacles having the break-off tab, when provided, removed from one nonidentified terminal are
3 _2 y3 W+ O4 P- ~4 f( jto be subjected to ten conditioning cycles of manual insertion and withdrawal of a standard gauge, see# ~! H) t' h O9 L5 s
Figure 109.1. Each of six devices is to be tested. The gauge is to be configured as outlined in Table 109.1.7 [9 k6 _: @" M6 |, I* S
The force applied to insert the gauge for any of the conditioning cycles is not to exceed 40 lbf (178 N).( m. }4 V8 J6 J+ s
The gauge is to have the dimensions indicated in Figure 109.1 but is not to have holes in the outer ends
0 I% w' u% X: r2 X2 e& ]1 E1 c% S, Z; hof the blades.
, n D% A: M% l+ L, v& ]109.5 Each of the line contacts of the receptacles is to be tested using the test blade illustrated in Figure
2 N' l& _6 J7 {- h: G109.2. Each line contact shall be capable of withstanding for 1 minute a static 0.5 lbf (2.2 N) applied to
# i1 w4 `5 c. x: s* vthe test blade in a direction normal to the plane of the face of the specimen and in a direction that tends! _. g n6 m. Z- X B
to remove the test blade, when the test blade is fully inserted in the contact opening. There shall not be5 \- \/ D( y0 D$ j& }! P* h6 r& z
more than 0.079 inch (2 mm) displacement of the test blade.
& Y; R+ S% x' S' |! p
- d- K. b) Y+ W* M! n- q0 v# D
' W0 c8 f$ C# y; [: G应该有3处有要求。: M) d$ d" K& j
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