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发表于 2007-11-9 03:27
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UL 标准中关于变压器的标准:
: g* m! J1 M& S8 n: Fa) Autotransformers used in industrial control equipment, which are evaluated in accordance with the Standard for Industrial Control Equipment, UL 508., U* ~9 q/ [* D- v' I1 x
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b) Class 2 or Class 3 transformers, which are evaluated in accordance with the Standard for Class 2 and Class 3 Transformers, UL 1585.
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c) Toy transformers, which are evaluated in accordance with the Standard for Toy Transformers, UL 697.
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! w" K; y* n" Xd) Transformers for use with radio- and television-type appliances, which are evaluated in accordance with the Standard for Transformers and Motor Transformers for Use in Audio-, Radio-, and Television-Type Appliances, UL 1411.
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2 Q( V: }( `) B$ c, l' Te) Transformers for use with high intensity discharge lamps, which are evaluated in accordance with the Standard for High-Intensity-Discharge Lamp Ballasts, UL 1029.
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7 F- N% d6 T' b- L" of) Transformers for use with fluorescent lamps, which are evaluated in accordance with the Standard for Fluorescent-Lamp Ballasts, UL 935.
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, J. L2 t2 x1 k7 g9 V& B" mg) Ventilated transformers for general use or non-ventilated transformers for general use (other than compound filled or exposed core types), which are evaluated in accordance with the Standard for Dry-Type General Purpose and Power Transformers, UL 1561.2 W9 K. V: F% U# V
4 B% [% E; ^2 C9 J; P; Zh) Dry-type distribution transformers rated over 600 volts, which are evaluated in accordance with the Standard for Transformers, Distribution, Dry-Type - Over 600 Volts, UL 1562.: R; W% v$ o, N4 z' v
$ K2 p9 I+ l% J1 c: si) Transformers incorporating rectifying or waveshaping circuitry evaluated in accordance with the Standard for Power Units Other Than Class 2, UL 1012.
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j) Transformers of the direct plug-in type evaluated in accordance with the Standard for Class 2 Power Units, UL 1310.% X) Z4 l! t6 Q9 @& P! w
) Q8 L5 x7 h: H0 w3 m4 ^k) Transformers for use with electric discharge and neon tubing, which are evaluated in accordance with the Standard for Neon Transformers and Power Supplies, UL 2161.
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7 Y- L; i) k0 Nr) Special transformers, UL506. |
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