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V1,V2满足有效值30V，峰值42.4V，但互联后，V3，V4就有效值和峰值都超了。（不互联 就V3 V4也不超），看到27后面有一行，就以为是可以豁免这种V3，V4互联超限值情况。
0 [3 W8 p, c# O. t! yNote: The open circuit voltage between secondary terminals of a two-secondary winding transformer may exceed 42.4 V! {( z7 t o7 G, o- W9 X8 ^3 \
peak when secondary terminals are interconnected, if the following conditions are met:
8 G# ^6 U1 Z4 ?( u# w9 N* Fa) The open circuit voltage between any two terminals is not more than 42.4 V peak when no connections3 b! g; D P. W5 a/ D
are made between secondary terminals and
4 V+ e8 ]2 H6 M; V% sb) The transformer is marked in accordance with Clause 17.4.2
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17.4.2 A transformer with multiple secondary windings as described in Clause 4.3 having an output
) N/ {) Q {9 v3 nexceeding 30 V rms or 42.4 V peak, or a transformer with an output current exceeding the limit specified
o6 B4 j! w6 h" D/ K, e# Xin Clause 28.1.1 or Clause 28.3.1, shall be marked where readily visible after installation, with the word
; C, Y+ t4 p* a. \7 M: n″WARNING″ and the following or the equivalent: ″Risk of electric shock or fire, do not interconnect
% ?; Y! r& S: ~) S' C: o& N5 {secondary windings.″ The word ″WARNING″ shall be in letters not less than 3.2 mm (0.125 in) high. The
' k* l. W; \1 z; \remaining letters shall be not less than 1.6 mm (0.063 in) high. |
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发表于 2024-8-14 09:54
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