标题: 关于UL1082标准7.11疑问 [打印本页] 作者: myhet 时间: 2008-5-18 11:02 标题: 关于UL1082标准7.11疑问 7.10 An opening in the enclosure that has a minor dimension of less than 1 inch (25.4 mm) is acceptable- L2 r% d V9 v
if a probe as illustrated in Figure 7.2, inserted through the opening, cannot be made to touch any 9 }1 d6 {) L& ?$ luninsulated live part of film–coated wire that involves the risk of electric shock. The probe shall be applied5 l% u0 [, o) J' K# r1 T8 y
in all possible articulated positions before, during, and after insertion.0 O6 y. f" x) ^) `& [
7.11 An opening that has a minor dimension of 1 inch (25.4 mm) or more, in an enclosure, as illustrated s; j8 X* l, }- t" Z
in Figure 7.3, is acceptable if, within the enclosure, there is no uninsulated live part or film-coated wire k* F/ R$ n' Y D8 `, Bless than; $ ~9 o: ]. O0 |6 A% I3 u) Qa) R distance from the inside edge of the perimeter of the opening and * |$ t i2 R1 S& s/ M! g2 { Yb) X distance from the plane of the opening.4 I- E6 @3 g r- y+ a
T equals the enclosure thickness, R equals X minus T, and X equals 5 times the diameter of the largest" G0 M+ E! ]8 K' u! A" @
round rod that can be inserted through the opening but not less than 6-1/16 inches (154 mm). In% \& S6 O! P1 l" Q
evaluating an opening, any barrier located within the volume is to be ignored unless it intersects the" }) \0 f$ d6 ~ h" O0 Z/ s
boundaries of the volume in a continuous, closed line.! F( B. G: f/ u
; j5 X5 _ Z7 [2 }* ^7.11是否说在一个符合7.3描述的外壳上，当有大于或等于25.4mm的开口时，如果在外壳的以下范围内没有uninsulated live part or film-coated wire的是可以接受的？ ; v* u; e4 k) @这个范围是：A，从开口内边角算起的R距离间。R=外壳厚度+X 8 e) |3 t P# _' T+ g B，从开口平面算起的X距离间。X=MAX.（5*Rod直径，154mm）作者: simondai 时间: 2008-5-19 22:09
个人理解: 6 M9 [! z' M3 _, x" H7.11 当产品的外壳上有如图7.3那样的一个开口,并且此开口的最小边长度大于等于1英寸时,如果能够满足：; x/ N$ s5 J0 m. }