1) GI under an nco 2) US army e-3 3) Army e-3 4) Army enlistee 5) Army rank e-3 6) Certain GI 7) Charge of a sarge 8) Fluorocarbon 9) GI rank 10) GI with one stripe 11) Greenhouse emission 12) Greenhouse gas 13) Kp candidate 14) Lance cpl underling 15) Low-rank inits 16) Lower ranking GI 17) Man in the mil Found on https://www.crosswordclues.com/clue/pfc
Prospective Fault Current. The maximum current for a fault between phases, between live and neutral or between phase and earth that the supply can provide. Usually measured by a special instrument at the supply origin - usually at the meter or consumer unit for domestic properties. Measured in kA (kilo Amps or Amps x 1000).
Found on https://www.encyclo.co.uk/local/20845