Effect of testing parameters on the outcome of the accelerated cable life test

Author

Lyle, R.

Author_Institution

Conductor Products Inc., Scottsville, TX, USA

Volume

3

Issue

2

fYear

1988

fDate

4/1/1988 12:00:00 AM

Firstpage

434

Lastpage

439

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;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.4277

Filename

4277