04354992 is referenced by 10 patents and cites 11 patents.

An improved method and apparatus for fabricating insulated cables, particularly polymeric insulated electrical power cables, resistant to the formation and growth of electrochemical trees is disclosed. Internal pressure on the conductor side of the cable when it is maintained lower than the external pressure on the outer surface of the insulation during extrusion. Extrusion pressure higher than the external pressure results in expansion of the insulation following extrusion. This expansion or swelling reduces the number and size of cracks and voids which are precursors of electrochemical trees. In addition, pressure curing the extruded, insulated cable with a curing medium above its melting point followed by gradual gradient cooling under internal pressure and higher external cooling fluid pressure to around room temperature optimizes the resistance of the cable to nucleation and growth of electrochemical trees.

Title
Electrochemical tree resistant power cable
Application Number
147212
Publication Number
4354992
Application Date
February 17, 1981
Publication Date
October 19, 1982
Inventor
George Bahder
Edison
NJ, US
Agent
Darby & Darby
Assignee
Cable Technology Labs
NJ, US
IPC
B29D 9/04
View Original Source