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60950中:2.5 Limited power sources s9 b! k, N5 _
A limited power source shall comply with one of the following, a), b, c) or d):
: Q1 ^: x# o' t3 R! Qa) the output is inherently limited in compliance with Table 2B; or
% L. ]6 K5 t+ n+ i* Jb) a linear or non-linear impedance limits the output in compliance with Table 2B. If a
) [1 [9 x7 i0 p1 ~& ` j% spositive temperature coefficient device is used, it shall pass the tests specified in IEC2 W8 b/ Z& S% |# C ]# U0 Q5 o
60730-1, Clauses 15, 17, J.15 and J.17; or, E/ m, X0 n6 A: v* K
c) a regulating network limits the output in compliance with Table 2B, both with and
7 J& J2 i; x0 R8 W- G" Vwithout a simulated single fault (see 1.4.14) in the regulating network (open circuit or
; N* {8 `. p* jshort-circuit); or
% f! \! Y2 T; f' td) an overcurrent protective device is used and the output is limited in compliance L) X; u6 c8 P8 |4 a& c6 X. M
with Table 2C. |
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