Title :
Effect of testing parameters on the outcome of the accelerated cable life test
Author_Institution :
Conductor Products Inc., Scottsville, TX, USA
fDate :
4/1/1988 12:00:00 AM
Abstract :
The effects of various testing parameters on the accelerated life test results of 15 kV underground residential distribution cables prepared from thermoplastic and crosslinked polyethylene insulation are considered. Testing parameters included dry versus water in the strand, voltage stresses 4X(34.6 kV) and 3X(26.0 kV), and hot spot temperatures of 90 and 75°C. The effect of shelf aging on the life of crosslinked polyethylene insulation is reported. Microscopic examinations were made for a number of the tested samples, and tree observations are discussed. The data presented provide insight to a number of the factors which reduce the life of polyethylene cable insulation used in the URD applications
Keywords :
cable insulation; electric breakdown; insulation testing; life testing; power cables; underground cables; underground residential distribution systems; 15 kV; 26 kV; 34.6 kV; 75 degC; 90 degC; URD; accelerated cable life test; cable insulation; crosslinked polyethylene insulation; electric breakdown; hot spot; insulation testing; shelf aging; testing parameters; thermoplastic; tree observations; underground residential distribution cables; voltage stresses; Aging; Cable insulation; Insulation testing; Life estimation; Life testing; Microscopy; Polyethylene; Temperature; Thermal stresses; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
