It is good to replace earth protective wire with busbar ?

Thread Starter

meowsoft

Joined Feb 27, 2021
470
It is good to replace earth protective wire from MDP to ground rod with busbar ?
Example : replace 50mm2 copper wire with 5x50mm copper busbar, 19 meters long copper busbar
 

Thread Starter

meowsoft

Joined Feb 27, 2021
470
I don't see any problem using a busbar, but why the reason and not flexible copper conductor?
Thanks for answer

Because busbar is more cheap in my area
Example, 50mm2 is equivalent with 3x20mm busbar in price, but 3x20mm busbar have less resistance and bigger capacity
Also for prevent copper thief, I think to cut busbar is hard than cut wire
 

Thread Starter

meowsoft

Joined Feb 27, 2021
470
Thanks for answer

Because busbar is more cheap in my area
Example, 50mm2 is equivalent with 3x20mm busbar in price, but 3x20mm busbar have less resistance and bigger capacity
Also for prevent copper thief, I think to cut busbar is hard than cut wire
One more question, It is also good idea to put 3x20mm2 busbar inside 1" PVC pipe, inner diameter is 30mm with 1mm thickness, it is can decrease or increase capacity ?, especially short circuit (kA) capacity ?
 

Thread Starter

meowsoft

Joined Feb 27, 2021
470
One more question, It is also good idea to put 3x20mm2 busbar inside 1" PVC pipe, inner diameter is 30mm with 1mm thickness, it is can decrease or increase capacity ?, especially short circuit (kA) capacity ?
Short circuit capacity is expected more than 50kA for properly absorbs lightning
 

Thread Starter

meowsoft

Joined Feb 27, 2021
470
It is good idea ?, 3x20mm busbar for protective earth conductor, 5x50mm busbar for lightning down conductor, main load is one phase 1x100a @220v 50hz
 

Thread Starter

meowsoft

Joined Feb 27, 2021
470
At least 5x50mm busbar have 650a capacity and expected to have 50kA in one second short circuit capacity, when lightning hit
 
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