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Correct OCPD for disconnection times.

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Discuss Correct OCPD for disconnection times. in the UK Electrical Forum area at ElectriciansForums.net

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Bsharp

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Simple question (or so I thought) What would be the Correct OCPD to achieve correct disconnect times for a 200amp sun-main with ze of 0.26 tncs. What are everybody’s thoughts??
 
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