Low voltage network cable of a new type

A secondary network cable that will burn clear without producing any smoke, inflammable, explosive, or toxic gases during faults has been developed. Tight and loose faults were cleared satisfactorily in 4 series of tests in underground ducts and vertical conduits without involving adjacent unfaulted phases. Dielectric strength is high and is recovered after exposure to water. The new insulation cannot carbonize and will withstand high temperatures.