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johnmark 发表于 2016-8-15 17:16  & v: k+ N; I8 i# G6 c: Q
UL 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， ...
91 Retention of Plugs Tests
/ u6 s! ?! n# \91.1 The contacts of a 1-15R, 5-15R, 5-20R, 6-15R or 6-20R configuration cord connector shall retain an
( i5 R2 L" I8 ^8 M6 dattachment plug so that a force greater than 3 lbf (13 N) is required to withdraw the plug when tested as! A; G2 L2 _- S _4 k/ k# y
described in this section.4 o' b4 m/ v7 j( u! X+ W
Exception: A cord connector that has provision for locking the plug in place after the blades have been
7 M% S. [8 M0 @! d# D2 R8 sinserted in the female contacts (such as a rotating collar) is not required to be subjected to this test.
8 `* [" h0 w, w* J& U5 @8 P+ F91.2 A cord connector with a spring-activated latching mechanism shall be subjected to this test with its" j8 H2 s" P4 ^) @1 m& n$ Z
mechanism defeated. See 90.2.3 L, ]! \7 ~; }7 F [
91.3 Each of six devices is to be subjected to ten conditioning cycles of insertion and withdrawal of a. _5 n f1 R5 {( `
standard solid-blade attachment plug that has American National Standard detent holes in accordance
( l: S- C2 w; K* p1 A' H& Q2 owith Wiring Devices – Dimensional Specifications, ANSI/NEMA WD6, in rigidly mounted blades, following1 h$ _) E$ u& u4 }8 ?: z
which the plug is to be fully reinserted into the device. The mating plugs are to have the configuration
% w9 z+ W* D" x! i& xindicated in Table 91.1. A pull of 3 lbf (13 N) in a direction perpendicular to the plane of the face of the `# I( U. ?8 b- u
cord connector and tending to withdraw the plug from the device is then to be applied to the plug for 1
' P. c& |, Q3 D/ t6 Pminute. The displacement of the plug shall not be greater than 0.079 inch (2 mm).
) |* L4 {, F6 W( b- {8 x7 v4 UException: Connectors may instead be subjected to the Retention of Blades Test, Section 109.2 and- K8 D0 d6 `6 e2 v# V s
109.3 (conditioning and 3 lb retention).- g" X/ ?/ C0 O2 q
91.3 revised November 16, 2012
9 u% _. b- `% y7 e
( \7 c3 k$ `. T, x2 Z3 e109 Retention of Blades Test6 m" l0 H0 y8 n- Y1 `* a
109.1 A flush or self-contained receptacle having a 5-15R, 5-20R, 6-15R, or 6-20R configuration shall be/ Z: B4 |. \ g, [ p" K
subjected to the retention of blades test described in this Section.- u; N# P- o; i# N
Exception: A receptacle having a 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R configuration and not of the( `* a3 n( C; |7 p( J- r5 }
flush or self-contained type may instead be subjected to the Retention of Plugs Test, Section 114.
; ^2 f9 g+ p9 z( k109.1 revised November 16, 2012
3 j3 C( f, `# M6 `7 `1 V$ L. T# E: w: i109.2 Receptacles having the break-off tab, when provided, removed from one nonidentified terminal are
0 @- p2 k, c7 j# `2 B% `to be subjected to ten conditioning cycles of manual insertion and withdrawal of a standard gauge, see) Z i' z6 b$ u% Q" a
Figure 109.1. Each of six devices is to be tested. The gauge is to be configured as outlined in Table 109.1.
8 I5 X7 \3 n4 |+ aThe force applied to insert the gauge for any of the conditioning cycles is not to exceed 40 lbf (178 N).; ~1 b$ L* U5 O* d
The gauge is to have the dimensions indicated in Figure 109.1 but is not to have holes in the outer ends" c( |, i) t2 y: ]. |9 z6 M8 R
of the blades.
8 `5 X0 p2 \* E4 Q. I109.5 Each of the line contacts of the receptacles is to be tested using the test blade illustrated in Figure/ K! Q3 K% m. \3 v8 U
109.2. Each line contact shall be capable of withstanding for 1 minute a static 0.5 lbf (2.2 N) applied to
' u' y* [: O6 y( k# A1 y8 K: C0 U% h0 ^the test blade in a direction normal to the plane of the face of the specimen and in a direction that tends
% P& R2 ~& `0 l7 Ito remove the test blade, when the test blade is fully inserted in the contact opening. There shall not be
& ]2 M) B8 t5 S: i% S+ K7 Bmore than 0.079 inch (2 mm) displacement of the test blade.
/ o0 Q. ^0 Q, |# `( ]3 e* h( t: }8 P* u7 [9 }- |( S; W$ E
+ k7 {5 p+ _" M! |: K; Z: y应该有3处有要求。+ s" C- ^: A) S% o
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