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johnmark 发表于 2016-8-15 17:16 
! I7 C+ Q5 X9 Y1 g; v i* `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
' M$ G2 ]5 w4 E0 G# T2 [91.1 The contacts of a 1-15R, 5-15R, 5-20R, 6-15R or 6-20R configuration cord connector shall retain an
. V4 c5 E2 ^1 p$ l8 w; eattachment plug so that a force greater than 3 lbf (13 N) is required to withdraw the plug when tested as5 b; J! h; s1 O7 R$ b
described in this section.' O+ ~6 K, h3 f# v" _8 v2 m
Exception: A cord connector that has provision for locking the plug in place after the blades have been9 z( N0 r* n9 f* H: c0 g5 V
inserted in the female contacts (such as a rotating collar) is not required to be subjected to this test.+ C* Y( y, u: p8 I t. a$ K
91.2 A cord connector with a spring-activated latching mechanism shall be subjected to this test with its
* M1 z3 m' {& r' |4 S! [" [- w& cmechanism defeated. See 90.2.1 _( u* ]# w; _- f
91.3 Each of six devices is to be subjected to ten conditioning cycles of insertion and withdrawal of a
8 p q8 p' w% zstandard solid-blade attachment plug that has American National Standard detent holes in accordance
9 O8 l ^" N4 F: o0 ~with Wiring Devices – Dimensional Specifications, ANSI/NEMA WD6, in rigidly mounted blades, following
, B1 \0 B3 t" S lwhich the plug is to be fully reinserted into the device. The mating plugs are to have the configuration3 T9 ^* x, [( ~6 e% m
indicated in Table 91.1. A pull of 3 lbf (13 N) in a direction perpendicular to the plane of the face of the o; g6 @1 n, M$ p) s6 i% y
cord connector and tending to withdraw the plug from the device is then to be applied to the plug for 1! Q: t7 Q9 P( t2 G) v
minute. The displacement of the plug shall not be greater than 0.079 inch (2 mm).
6 x- ^+ C( c/ D* D: j- L$ yException: Connectors may instead be subjected to the Retention of Blades Test, Section 109.2 and
% q9 _; o+ i) v# v+ \$ |109.3 (conditioning and 3 lb retention)./ b2 H9 ^2 C! N. x/ a
91.3 revised November 16, 2012
6 x7 d' }5 n( ?0 s8 ~3 t! p. a5 a) y9 ~9 }* h+ @. Q
109 Retention of Blades Test7 {5 I ~0 d6 h, y, v
109.1 A flush or self-contained receptacle having a 5-15R, 5-20R, 6-15R, or 6-20R configuration shall be
& `4 R: D% U7 Ksubjected to the retention of blades test described in this Section.
8 x# }0 ^ f4 ^/ T) ]; PException: A receptacle having a 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R configuration and not of the
, ?" ^: u. e) E4 n& D/ b5 mflush or self-contained type may instead be subjected to the Retention of Plugs Test, Section 114.
/ j: v' L6 I3 Z0 W6 f/ j2 C u8 M6 j109.1 revised November 16, 2012
3 n, l* b$ x0 L. }7 s/ Z109.2 Receptacles having the break-off tab, when provided, removed from one nonidentified terminal are
9 t. r7 p+ \" t0 vto be subjected to ten conditioning cycles of manual insertion and withdrawal of a standard gauge, see
1 t$ B; G/ k, m' H }: o5 [Figure 109.1. Each of six devices is to be tested. The gauge is to be configured as outlined in Table 109.1.
) q/ n4 J h' Q' ]. Y5 C# WThe force applied to insert the gauge for any of the conditioning cycles is not to exceed 40 lbf (178 N).
) ?+ s; S" U: l5 Z: q uThe gauge is to have the dimensions indicated in Figure 109.1 but is not to have holes in the outer ends
, R% p9 `$ n3 ~of the blades.0 `7 d- B: h1 m8 i, D
109.5 Each of the line contacts of the receptacles is to be tested using the test blade illustrated in Figure
% q, g1 x3 D* S. Z5 P1 G( B! E109.2. Each line contact shall be capable of withstanding for 1 minute a static 0.5 lbf (2.2 N) applied to
# X5 s$ b" f, F- Z2 C+ H# Jthe test blade in a direction normal to the plane of the face of the specimen and in a direction that tends1 b3 y% w' [: W m8 }) E( f
to remove the test blade, when the test blade is fully inserted in the contact opening. There shall not be
" O& W& |5 o' r! m8 V# Rmore than 0.079 inch (2 mm) displacement of the test blade.
( O4 H0 c# d8 O- T% d
; q) Y- O( C! L# l+ }9 U* B# S- \9 D+ k! A G' L% z9 H) a
应该有3处有要求。7 H: I) V) Q6 `! P
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