引线，为封闭的发动机

Conductor Tinned, tinned annealed, or bare copper, Nos. 20-4 AWG: Nos. 30-38 AWG stranding; length of lay per requirements for Type ST Cord. May employ rope lay stranding except the max lay of members shall be 1 in for 20 and 19 AWG, sizes 2 in for 18-11 AWG, 2-1/2 in for 10 and 9 AWG, 3 in for 8 AWG, 3-1/2in for 6 and 4 in for 4 AWG. ______________________________________________________________________________ Insulation Consists of an inner closely woven Polyester braid; one PTFE tape, approx 2.0 mils thick; and one Polyester tape, approx 0.5 mil thick each tape is min 1/2 in wide and is applied with a min 1/2 overlap. Over this assembly an outer closely woven Polyester braid is applied.