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Discuss The maximum value for Zs on a TT system is 50/I delta. So for a 30mA RCd is 1667 ohms in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

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why is this not the case if the final circuits on a TN-S or TN-C-S system are protected by a RCD?
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Reply to The maximum value for Zs on a TT system is 50/I delta. So for a 30mA RCd is 1667 ohms in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

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