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60950中:2.5 Limited power sources9 X- X5 { s* s# U" r
A limited power source shall comply with one of the following, a), b, c) or d):
) b! L9 U% O8 o9 U5 A9 Ma) the output is inherently limited in compliance with Table 2B; or* d9 R1 e" U! p5 B( v/ s* u4 R
b) a linear or non-linear impedance limits the output in compliance with Table 2B. If a
$ \/ o7 h: F0 ~# H& }# @3 Ypositive temperature coefficient device is used, it shall pass the tests specified in IEC
/ m7 b/ B* X, c. z60730-1, Clauses 15, 17, J.15 and J.17; or+ C' l; [7 W4 F5 z" u
c) a regulating network limits the output in compliance with Table 2B, both with and
2 k1 ^+ B8 t0 Vwithout a simulated single fault (see 1.4.14) in the regulating network (open circuit or
( t" G! Z! G# T- J1 W0 ~short-circuit); or
) ?* a* ~$ b4 d5 `" B* g+ A$ }4 J0 ]d) an overcurrent protective device is used and the output is limited in compliance. \8 ?5 r" O+ I! n* D
with Table 2C. |
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