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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& F7 T8 B$ Z7 q! i, R3 s1 B+ I- o
标准附上:a) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION providing permanent separation,assured by barriers, routing or fixing; or6 M2 R- h! ~7 s) j" q
2 a9 y( k F" M5 A3 y( r, {b) (Method 1) DOUBLE INSULATION or REINFORCED INSULATION on or between the parts to be# E" \5 K: }7 I# d4 K( x
separated; or
6 z5 o# A; c- X# \9 s7 p: Ic) (Method 1) DOUBLE INSULATION, consisting of BASIC INSULATION on one of the parts to be
, Z" l* ?- M% p1 G, G( ?separated and SUPPLEMENTARY INSULATION on the other part; or7 C- ~! B4 j Q! v8 M& b/ g& `9 Q
d) (Method 2) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with protective
' {" a4 e/ ^4 j( Z4 \- u+ l; Pscreening connected to the main protective earthing terminal in accordance with 2.6.1 b);. b5 U; q. J* P% ]$ ]4 F
or V+ K1 j2 B1 Y) k
e) (Method 3) BASIC INSULATION on the part at a HAZARDOUS VOLTAGE, together with- t" k l+ ~( v+ P5 N
connection of the other part to the main protective earthing terminal in accordance with. N4 j4 \+ W9 e( d3 ^; ^
2.6.1 b), such that the voltage limits for the accessible part are maintained by relative
9 k3 G0 M, h7 ~: [% {3 icircuit impedances or by the operation of a protective device; or
- a; ^& J* f- a( d" B( d$ J% i- Sf) any other construction providing equivalent separation. |
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