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标准上有的:
4 m* i) }+ V, I( ], bTo allow for the fact that the average temperature of windings of universal motors, relays, solenoids and J8 Z% k* M7 ?/ C/ N
similar components is usually above the temperature at the points on the windings where thermocouples are
( A6 D! z( T8 aplaced, the figures without parentheses apply when the resistance method is used and those within( c, g# b( x( B0 t5 X7 d8 V6 V
parentheses apply when thermocouples are used. For windings of vibrator coils and a.c. motors, the figures
9 o: p" E& \4 ]without parentheses apply in both cases.
6 x* F2 b. t$ K! V* A) C......
. u7 Q1 B. `' A简单来说,基本上括号内的适用于热电偶发,括号外适用于电阻法 |
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