|
For working voltage 130V< V< 250V : * s! m6 P# o* ~. D. [8 ~: U2 l0 E7 V8 X
一 :between live part of different polarity :1,If protected against deposition of dirt : creepage distance : 2.0mm ; clearance : 2.0mm .2,If not protected against deposition of dirt : creepage distance : 3.0mm ; clearance : 2.5mm .3,if lacquered of enamelled windings:creepage distance : 2.0mm ; clearance : 2.0mm . 4, for positive temperature coefficient(PTC)resistors including their connecting wires,if protected against deposition of moisture or dirt :creepage distance : 1.0mm ; clearance : 1.0mm .& i. ^ F+ r' ]9 `! N6 r9 j" R3 t
二 :between live part and other metal parts over basic insulation :1,If protected against deposition of dirt : (1)if of ceramic material ,pure mica and the like :creepage distance : 2.5mm ; clearance : 2.5mm .(2)if of other material :creepage distance : 3.0mm ; clearance : 2.5mm . 2,If not protected against deposition of dirt : creepage distance : 4.0mm ; clearance : 3.0mm .3,if the live parts are lacquared of enamalled winding : creepage distance : 2.0 mm ; clearance : 2.0mm .4,at the end of tubular sheathed type heating elements:creepage distance : 1.0 mm ; clearance : 1.0mm .
! f/ Y- y- B4 g0 e; R 三:between live part and other metal parts over reinforced insulation:: Z8 ] U' t& S# ~! C
1,if the lave part are lacquered or enamelled windings or protected against deposition of dirt : creepage distance : 6.0 mm ; clearance : 6.0mm ., r; q2 A7 U' r4 [
2,for other live part not protected against deposition of dirt :creepage distance : 8.0 mm ; clearance : 8.0mm . |
|