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60950中:2.5 Limited power sources
7 d/ d7 m4 C N. v( \- nA limited power source shall comply with one of the following, a), b, c) or d):; V6 d% S* r- Z* p& ]
a) the output is inherently limited in compliance with Table 2B; or
5 y+ z9 a0 A1 S/ Yb) a linear or non-linear impedance limits the output in compliance with Table 2B. If a
+ L/ f$ y5 f6 G/ Zpositive temperature coefficient device is used, it shall pass the tests specified in IEC
4 C( H9 B; o4 l4 n7 u0 Q60730-1, Clauses 15, 17, J.15 and J.17; or$ w" R7 O7 p) T. ^8 J- {$ k) ~
c) a regulating network limits the output in compliance with Table 2B, both with and
7 K4 f: A; L9 Fwithout a simulated single fault (see 1.4.14) in the regulating network (open circuit or! {) M8 M3 U3 ^! B
short-circuit); or! d0 `5 ^) F$ v
d) an overcurrent protective device is used and the output is limited in compliance
r6 _- I) ?2 B. e; k3 Cwith Table 2C. |
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