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60950中:2.5 Limited power sources% W& P1 O* ~, G- ]
A limited power source shall comply with one of the following, a), b, c) or d):
" q, Z, l; \ [, k- f1 |8 Qa) the output is inherently limited in compliance with Table 2B; or
. g$ B1 Y+ ?! D1 g1 d- o, hb) a linear or non-linear impedance limits the output in compliance with Table 2B. If a- K7 b1 U$ x. `8 ^* O2 S( ?
positive temperature coefficient device is used, it shall pass the tests specified in IEC5 _2 H& ?( X S K5 r% H4 A
60730-1, Clauses 15, 17, J.15 and J.17; or
& {, P8 r) a# }* Q+ gc) a regulating network limits the output in compliance with Table 2B, both with and' m! |+ ^+ K d: z6 }0 I
without a simulated single fault (see 1.4.14) in the regulating network (open circuit or
* v8 K! s# S* V/ kshort-circuit); or! e" y1 k$ X3 t
d) an overcurrent protective device is used and the output is limited in compliance
; t1 I4 F$ Y& d2 vwith Table 2C. |
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