Maro Publications

Cable Insulation


from 7/28/2012

Maro Topics


Patent Abstracts

Patent Titles





“Medium and high voltage insulated cables are known to suffer from shortened life when installed in an environment where the insulation is exposed to water, for example underground or locations of high humidity. The shortened life has been attributed to the formation of water trees which occur when an organic polymeric material is subjected to an electrical field over a long period of time in the presence of water in liquid or vapor form. The formation of water trees is believed to be caused by a complex interaction of the AC electrical field, moisture, time, and the presence of ions. The net result is a reduction in the dielectric strength of the insulation.” [Herbst and Kolb, US Patent 8,217,105 (7/10/2012)]


Bookmark this page to follow future developments!.
(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921


Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

* Date of latest addition; date of first entry is 7/28/2012.