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60950中:2.5 Limited power sources/ I. W. q3 L7 b+ ]
A limited power source shall comply with one of the following, a), b, c) or d):
+ i0 A3 D' u) a7 }* n; Ja) the output is inherently limited in compliance with Table 2B; or
; a( j' y& S2 g ^6 rb) a linear or non-linear impedance limits the output in compliance with Table 2B. If a* I5 n; @/ f1 N7 L( `7 p ^/ R
positive temperature coefficient device is used, it shall pass the tests specified in IEC
1 \# y' j' [, |4 O* ^ i60730-1, Clauses 15, 17, J.15 and J.17; or
2 @8 t$ C H. k( `c) a regulating network limits the output in compliance with Table 2B, both with and
3 ~ p" {3 }5 L+ r- Awithout a simulated single fault (see 1.4.14) in the regulating network (open circuit or
# q% v' e+ F2 g5 a, K2 T: Ashort-circuit); or; S7 N, [6 A v8 @9 @/ s
d) an overcurrent protective device is used and the output is limited in compliance
% n6 ]* u) P; b& j5 A% e0 f: Fwith Table 2C. |
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