Maximum zs permitted by bs7671:
... record the maximum permitted values of Zs, by reference to the limiting earth loop impedance values given in Chapter 41 of BS7671: 2008, not to other tabulated 'corrected' values used for comparison with measured values obtained at ambient temperature. ...
Eaton explains the key points about BS 7671 2008’s Second Amendment Section 722 on electric vehicle charging
The soon to be published Second Amendment to BS7671:2008 will have, as its main change (apart from a new IEC decimal point numbering system), a new Part 722 on electric vehicle (EV) charging. In the following article, Eaton’s Paul Norris looks at Part ...
This short but important guide in PDF format by the Electrical Contractor’s Association (ECA) is intended to assist members in becoming fully conversant with the main changes to BS7671: 2008 incorporating Amendment 3:
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- maximum zs permitted by bs7671