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60950中:2.5 Limited power sources+ n1 a2 V- G9 ]; M4 C, ^
A limited power source shall comply with one of the following, a), b, c) or d):; Q( x/ I/ X; T) N6 e* c
a) the output is inherently limited in compliance with Table 2B; or
3 T" C: ~* O- Z- Yb) a linear or non-linear impedance limits the output in compliance with Table 2B. If a" A# k1 [9 Q! z& s
positive temperature coefficient device is used, it shall pass the tests specified in IEC
4 V9 ~: ?" p, L' e U# w: c! s60730-1, Clauses 15, 17, J.15 and J.17; or. b2 ?& N! f% O6 w: k
c) a regulating network limits the output in compliance with Table 2B, both with and. h8 ]. j# B9 T1 }$ t8 Y
without a simulated single fault (see 1.4.14) in the regulating network (open circuit or
N3 S, K! a6 z1 tshort-circuit); or
0 W. G1 d7 s3 jd) an overcurrent protective device is used and the output is limited in compliance% P# f( G5 I0 |/ I5 @' z
with Table 2C. |
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