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VOLTAGE DROP ANSWERS

Q1. Table 42 = Vc 16.4 , Vd = 25 x 12 x (16.4 x 1.155) / 1000 = 5.68V

** Table 42 for Multicore cables, multiply 1.155 for single phase

 

 

Q2. Table 42 = Vc 10.2 , Vd = 37 x 25 x (10.2 x 1.155) / 1000 = 10.89V (VERY HIGH!, we can only have 5% drop from point of supply)

 

 

Q3. Table 41 = Vc 4.05 , Vd = 45 x 33 x 4.05 / 1000 = 6V

** Table 41 for single core cables

 

 

Q4. Table 41 = Vc 1.18 , Vd = 65 x 45 x 1.18 / 1000 = 3.45V