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60950中:2.5 Limited power sources6 W4 K7 S- l- O5 O/ z4 `2 G
A limited power source shall comply with one of the following, a), b, c) or d):
1 |/ v/ u7 h; Q. r1 t1 aa) the output is inherently limited in compliance with Table 2B; or" B) Q. p9 ?, H* y) r6 Y: z
b) a linear or non-linear impedance limits the output in compliance with Table 2B. If a
) h k: F7 {, m1 ipositive temperature coefficient device is used, it shall pass the tests specified in IEC
) n; h) o4 ]% I3 ^7 {# ^60730-1, Clauses 15, 17, J.15 and J.17; or- g6 d' C H4 S* C* O
c) a regulating network limits the output in compliance with Table 2B, both with and! W( c9 a5 E |0 q. B
without a simulated single fault (see 1.4.14) in the regulating network (open circuit or
8 z) Z. B- }' U) ^short-circuit); or! i$ ]4 w, j3 w$ F
d) an overcurrent protective device is used and the output is limited in compliance
% p: H3 ]/ ~# V: dwith Table 2C. |
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