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60950中:2.5 Limited power sources
8 W9 b1 d' T( _9 M: oA limited power source shall comply with one of the following, a), b, c) or d):
% D! `& g- W2 f0 wa) the output is inherently limited in compliance with Table 2B; or, d9 D) o0 `& V6 Y
b) a linear or non-linear impedance limits the output in compliance with Table 2B. If a: P# |( ]3 k/ s# O2 t( s
positive temperature coefficient device is used, it shall pass the tests specified in IEC
+ V: y. j& ` K# V, v2 T60730-1, Clauses 15, 17, J.15 and J.17; or. P; Y% f8 q) r6 H- c/ C
c) a regulating network limits the output in compliance with Table 2B, both with and
8 Z9 f. v$ k4 V# Iwithout a simulated single fault (see 1.4.14) in the regulating network (open circuit or4 ]0 ?% o8 Z: ]) g, x6 S
short-circuit); or
b! V( y+ e" d' R0 w% ad) an overcurrent protective device is used and the output is limited in compliance
" Z% c2 I7 h/ Z5 xwith Table 2C. |
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