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6 [" k2 }+ V% P39.3 Tests are to be conducted at rated frequency and a test potential not less than 120, 208, 240, 277, 480, or 600 volts as appropriate for the voltage ratings. See Table 39.2. The Temperature Test shall be conducted at a potential between 90 – 110 percent of the potential specified when the load current is adjusted to produce the maximum normal heating.1 K4 c3 A9 d; ?+ i/ H4 M
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* ]+ ~$ H, g% \7 I3 vAbove is from UL standard, normally, three points 90%,100% and 110%, then select the max load(output current) case... |
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