Facility condition methodology

The facility condition criteria to be utilized by ATC for system planning purposes will include:

  1. Any transmission line or structures that are beyond their design life, any transmission line that has exhibited below-average availability or any transmission line that has required above-average maintenance will be considered a candidate for replacement. In assessing potential line replacements, consideration will be given to other needs in the area of the candidate line to determine whether rebuilding the line to a higher voltage would fit into the “umbrella” plan for that planning zone. ATC engineering, operations, maintenance and environmental employees work together to coordinate such assessments.
  2. Any underground cable that is beyond its design life, has exhibited below-average availability or has required above-average maintenance will be considered a candidate for replacement. In assessing potential cable replacements, consideration will be given to other needs in the area of the candidate cable to determine whether replacing the cable with a cable with a higher ampacity or with a cable capable of a higher voltage would fit into the “umbrella” plan for that planning zone. ATC engineering, operations, maintenance and environmental employees work together to coordinate such assessments.

Next: Planning Zones