|
绝缘系统定义(UL1446):# O) E: V' v: n- ^, l
4.5 INSULATION SYSTEM – A unique intimate combination of two or more insulating materials used in# f1 K; d: T, X7 r' A
electrical equipment. One example of this is the combination of magnet wire, ground insulation, varnish, lead wire insulations, and outer wrapping of a coil. These intimate combinations are evaluated as
0 F1 p$ N: K- m1 k. J; ]2 eunique groups. When multiple groups exist, either within a given insulation system or a different
& ?. J: G" ^6 e8 n+ W" @2 E9 n! m8 y$ e1 pinsulation system, components of one unique group shall not be added to another unique group.
+ U! Y$ o: ]# V) l" c( e4 x' n qHowever, more than one group is able to be used within a single device when at least a 3.05 mm
0 @$ N8 n. F/ U: O9 Z(0.125 inch) air space is used to separate them. Any material or component existing outside the outer
( j0 a5 f( ^/ O8 F: n8 U# a, C m4 Iwrap of the device or not in contact with the windings is not determined to be part of the insulation6 r1 b" [5 L. q
system. |
|