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60950中:2.5 Limited power sources; X3 P$ |/ B+ {3 b% t! W% |
A limited power source shall comply with one of the following, a), b, c) or d):
6 |) L, z. j2 u2 [a) the output is inherently limited in compliance with Table 2B; or3 [. C! X; A6 p6 @! E- [/ |3 v7 B6 P
b) a linear or non-linear impedance limits the output in compliance with Table 2B. If a
3 N; H. L1 r! y a0 ^positive temperature coefficient device is used, it shall pass the tests specified in IEC
1 p q7 y9 \( R8 n60730-1, Clauses 15, 17, J.15 and J.17; or% s6 }+ k- J0 l
c) a regulating network limits the output in compliance with Table 2B, both with and
~+ k) c5 [% S4 d- L0 fwithout a simulated single fault (see 1.4.14) in the regulating network (open circuit or
$ a( M8 W2 X2 s. P Rshort-circuit); or
8 ^ b. m- l; L- ~; h# v- }4 [d) an overcurrent protective device is used and the output is limited in compliance
) V, C4 j9 o% ^. ~4 A6 [with Table 2C. |
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