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60950中:2.5 Limited power sources6 D# ^0 v$ o; F
A limited power source shall comply with one of the following, a), b, c) or d):
/ i" p+ ?4 E& a- s; F5 z" fa) the output is inherently limited in compliance with Table 2B; or
" O; c" |7 Z! |# Zb) a linear or non-linear impedance limits the output in compliance with Table 2B. If a
# A& C! ^: z5 b, ?: |positive temperature coefficient device is used, it shall pass the tests specified in IEC
" m& k& X& c: G3 R2 J' F: S60730-1, Clauses 15, 17, J.15 and J.17; or
! L W# B/ @& f3 x' O+ tc) a regulating network limits the output in compliance with Table 2B, both with and
+ l# K8 Z1 Q: ?4 X; nwithout a simulated single fault (see 1.4.14) in the regulating network (open circuit or; n. d E/ k$ c- O, |$ q) }! C+ ?
short-circuit); or
& |' X& _3 X( { i; Y" O \6 Pd) an overcurrent protective device is used and the output is limited in compliance
5 V3 N. d: [9 ~$ n8 nwith Table 2C. |
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