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发表于 2010-9-9 15:24
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fjapple大侠,谢谢你,还有问题想问你:2.9.4里面Separation from hazardous voltages方法1,2,3对于I类产品我应该选用哪一种呢?谢谢7 |: d, w& H' M' v* v
标准附上:a) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION providing permanent separation,assured by barriers, routing or fixing; or
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6 K: d6 J( g% [% ?b) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION on or between the parts to be
, B/ Q" Q% j4 Z6 xseparated; or
4 c% k' h7 t- X* `c) (Method 1) DOUBLE INSULATION, consisting of BASIC INSULATION on one of the parts to be
- N& F; t+ V: N& }0 \9 x H! Yseparated and SUPPLEMENTARY INSULATION on the other part; or
5 o6 A0 q* h' E5 ]( Kd) (Method 2) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with protective x ~$ V+ m) U
screening connected to the main protective earthing terminal in accordance with 2.6.1 b);
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e) (Method 3) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with
# i- A2 {1 Q4 s2 u- P0 A5 mconnection of the other part to the main protective earthing terminal in accordance with7 b) w5 W, k8 B
2.6.1 b), such that the voltage limits for the accessible part are maintained by relative5 U/ p# y5 F i o% R) D
circuit impedances or by the operation of a protective device; or
% ^" @2 z1 {: v- L7 \f) any other construction providing equivalent separation. |
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