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标准上有的:
# C) y( l4 X# [, u* J) JTo allow for the fact that the average temperature of windings of universal motors, relays, solenoids and
N o, f# {7 Z& C; e2 fsimilar components is usually above the temperature at the points on the windings where thermocouples are
" Q) J7 c/ b, o0 v" O5 ?2 tplaced, the figures without parentheses apply when the resistance method is used and those within
- P/ Y( U7 E1 v0 K# J8 Wparentheses apply when thermocouples are used. For windings of vibrator coils and a.c. motors, the figures
- P& T5 P* }3 b) U5 Bwithout parentheses apply in both cases./ O7 z, j5 G7 c7 H* S/ O) W
......7 u% G8 o9 F0 z s6 l
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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