In accordance with NETA and IEEE standards, what is the maintenance test voltage for a 5KV rated EPR insulation level cable?

The maintenance test voltage for a 5kV rated EPR (Ethylene Propylene Rubber) insulation level cable is determined based on the insulation system's ability to withstand testing without causing damage or creating failure conditions. According to NETA and IEEE standards, the recommended maintenance testing voltage for cables is typically 2 to 3 times the rated voltage of the cable, ensuring that it is safely within operational limits while still being high enough to effectively evaluate the insulation's integrity.

For a cable rated at 5kV, applying a test voltage of 11kV falls within the appropriate range, as 11kV is slightly above 2 times the rated voltage (10kV) but not so high as to risk damaging the insulation. This testing voltage is optimized to identify weaknesses or defects in the insulation without compromising its structural integrity, which is crucial during maintenance procedures.

The other options represent testing voltages that are either too low or excessively high for a 5kV rated cable, potentially resulting in insufficient testing or risking insulation failure, demonstrating why they are not suitable for this scenario.