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Now my company wanna have a UL certification for our medium voltage converter, brief introduction as below:0 t/ B+ }, C3 O& I: \
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Power cell: input:690V/3 phases, output voltage and frequency can be adjusted.. {9 M7 Z' z. ^# R6 o1 j. l4 z
System:6 power cells in series, and then the total output voltage can be very high.: c, i; G; Z, F6 `
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" I0 B: g1 b/ e/ @9 gAfter checking the UL standards, I think UL508C and UL347A will be used, but UL508C only applies to 1500V and below, UL347A is for more than 1500V. From my side, I think UL347A is a supplement for UL508C, so I feel our products should follow UL508C first for the power cell, then for system, we can use UL347A....' m+ f0 F5 s& y, |7 a. A
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Am I right, or if my friends have other advise or instruction, pls kindly instruct me.
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Thanks! |
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