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绝缘系统定义(UL1446):: T6 A* D$ B2 e; v0 J4 v6 k
4.5 INSULATION SYSTEM – A unique intimate combination of two or more insulating materials used in
8 j' L ]; Y. a# {1 ]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+ U! X: u! l- F& @$ e4 ]
unique groups. When multiple groups exist, either within a given insulation system or a different! c g6 g8 |- {6 K4 P
insulation system, components of one unique group shall not be added to another unique group.# l; s# | p6 |/ w
However, more than one group is able to be used within a single device when at least a 3.05 mm# j+ Q* X& U' }8 E. q
(0.125 inch) air space is used to separate them. Any material or component existing outside the outer0 p& |: Z' T A' u* s$ y9 ~
wrap of the device or not in contact with the windings is not determined to be part of the insulation
/ e9 M4 e8 b1 x% L4 X+ Dsystem. |
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