MV Cable Voltage Drop

[Sajid khan]

Dear All,

Can any one provide me the reference of NEC code for allowable percentage of voltage drop in MV system??

Thanks in advance

Regards
Sajid

 

[ron]

The NEC has an informational note for feeders and branch circuits, but it is not enforceable. Look at 215.2 for feeders (guessing that your MV circuit is a feeder).

Many jurisdictions have adopted an energy code and most have an enforceable voltage drop requirement at any voltage for feeders and branch circuits.

 

[Sajid khan]

I found in a local energy code, the max allowable voltage drop limit for MV cable to be 1.5%..