ZS – LOOP IMPEDANCE – WHY SO MANY NUMBERS – HOW TO CALCULATE THE CORRECT ZS – WHAT THE NUMBERS MEAN
17:09
TT SYSTEMS - WHY MUST THEY BE RCD PROTECTED
15:30
Zs - TABULATED or MEASURED. An easy method to calculate the Zs values without the books.
27:14
Earth Fault Loop Impedance Zs 100% or 80% Values On Site With Matt. Calculations Using BS 7671
15:30
EXTENDING SOCKET CIRCUITS - ADDING TO RING and RADIAL CIRCUITS
27:21
Maximum Earth fault loop impedance
12:52
Test d'entrée à l'université de Harvard
14:48
Zs and the 80% RULE. What is it and understanding the differences between Tabulated and Measured
19:07