SAMPLE EXAMINATION QUESTIONS (MECHANICAL SECTION ONLY)

ELECTRICAL ENGINEERING NOTES


NOTES ON ELECTRICAL ENGINEERING

Transmission Voltage = 161kV

High Voltage  Distribution  supply System =33kV/11kV

Low Voltage Distribution Line = 415 V - 3 phase (normally 3 wire for industrial application supply) 

Single-phase used in our homes = 240V 

(normally 4 wires on the pole known  as distribution or service cable) the 4 wires being  L1; L2; L3 and last as N)


Please click on the link below to download the PDF on color coding.




Pictures differentiating high and low voltage distribution lines




 

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