Title :
Flame retardant insulation liquids for oil-paper power cables
Author :
Chan, J.C. ; McAlister, R.C. ; Cometa, E.
Author_Institution :
Canada Wire & Cable Ltd., Toronto, Ont., Canada
Abstract :
Silicone liquids exhibit good flame-retardant characteristics, but unfortunately also exhibit poor gas absorbing capacity under high electrical stress, thus rendering them unsuitable for cable application. This drawback has been overcome by the addition of 5-10% by volume of alkylbenzene which is a strong gas absorber. The resultant liquid compositions showed improved gas absorption characteristics without adversely affecting the flame-retardant properties of the base silicone liquids. Comparative studies on model cables have demonstrated that a 93%-silicone-20CS/7%-alkylbenzene-C18 liquid composition outperformed the conventional alkylbenzene liquid in terms of dissipation factor characteristics and long-term aging performance.<>
Keywords :
ageing; cable insulation; composite insulating materials; dielectric losses; insulating oils; materials testing; silicones; base silicone liquids; dissipation factor characteristics; flame retardant insulation liquids; flame-retardant properties; gas absorption characteristics; high electrical stress; long-term aging; oil-paper power cables; Additives; Cable insulation; Dielectric liquids; Fires; Flame retardants; Flammability; Oil filled cables; Oil insulation; Power cables; Testing;
Conference_Titel :
Electrical Insulation, 1988., Conference Record of the 1988 IEEE International Symposium on
Conference_Location :
Cambridge, MA, USA
DOI :
10.1109/ELINSL.1988.13861
