Cable Derating Calculations - 66kV

I need a professional to perform derating calculations for power cables to be installed underground. The cables will be installed in an underground environment with proximity to other cables.

Requirements:
- Calculate derating factors considering underground installation and proximity to other cables.
- Provide detailed reports and justifications for calculations.
- Ensure compliance with relevant electrical codes and standards.

Ideal Skills and Experience:
- Expertise in electrical engineering.
- Experience with derating calculations for power cables.
- Familiarity with underground installation challenges and regulations.
- Strong analytical and report-writing skills.