maxmium Zs
- Thread starter cherry098
- Start date
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BS7671!
Or guidance note 3 for the measured values. For an MCB it is Uoc/(max magnetic setting x current rating), Uoc is nominally 240v, max magnetic settings for the types are B=5, C=10, D=20. This value is for the cable at max operating temp i.e. 70deg C, for a measurement carried out with the conductors at 20deg C you need to multiply by 0.8.
cherry098 said:where to find a table for the maxmium Zs
Try here too - http://www.tlc-direct.co.uk/Book/5.3.4.htm
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