Silicone water block for electrical cables

Details Silicone water block for electrical cables Silicone water block for electrical cables

1987-04-23

1989-07-04

Schofer, Joseph L.

Electricity: conductors and insulators

With fluids or vacuum

With fluid stops

523173, 156 48, H02G 1520

Patent

active

048453099

ABSTRACT:
There is provided a method of extending the serviceable life of a stranded conductor electrical distribution cable wherein the interstices of the conductor are filled with a curable silicone water block composition which is subsequently cured to a non-flowing state. The composition has a low viscosity and comprises (A) an Si-H endblocked polydiorganosiloxane fluid, (B) a polydiorganosiloxane fluid endblocked with an unsaturated organic radical, (C) a siloxane crosslinker, (D) a hydrosilation catalyst and (E) a polymerization inhibitor. Proper selection of catalyst and inhibitor concentrations imparts a controllable viscosity-time profile to the composition and allows cables of various sizes and lengths to be filled before the water block composition cures.

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patent: 3634569 (1972-01-01), Anderson
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patent: 4372988 (1983-02-01), Bahder
patent: 4451692 (1984-05-01), Classens et al.
patent: 4596743 (1986-06-01), Brauer et al.

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