Electricity: conductors and insulators – Conduits – cables or conductors – Conductive armor or sheath
Patent
1989-07-03
1991-08-27
Nimmo, Morris H.
Electricity: conductors and insulators
Conduits, cables or conductors
Conductive armor or sheath
156 51, 174106R, 174106SC, 174108, H01B 728
Patent
active
050435388
ABSTRACT:
A water impervious cable construction for aerial, underground, or underwater use which includes at least one central electrical conductor, an overlayer of insulation material such as a plastic, a shield layer formed of a plurality of individual conductors (or the equivalent) which may be spirally wrapped and which shield layer is embedded in a layer of semiconducting material (which may also be a plastic), a layer of overlapped moisture barrier metal foil material, and a further overlayer of insulating material. The cable is manufactured on a substantially conventional cable extrusion line in which the partially manufactured cable (insulated core or cores wrapped with the shield conductors) is introduced into an extruder and a layer of semiconducting material is extruded thereon, wrapped with metal foil tape (which may include an edge located sealant), and introduced into a subsequent extruder to form one or more outer coatings. Use of expensive or special plastic laminated metal tape in combination with "hold" tape materials is eliminated, reducing the manufacturing cost to produce the cable.
REFERENCES:
patent: 3209064 (1965-09-01), Cutler
patent: 3315025 (1967-04-01), Tomlinson
patent: 3638306 (1972-02-01), Padowicz
patent: 3792192 (1974-02-01), Plate
patent: 3865971 (1975-02-01), Kumagai et al.
patent: 4008367 (1977-02-01), Sunderhauf
patent: 4079190 (1978-03-01), Jones et al.
patent: 4275262 (1981-06-01), Sellars
patent: 4360704 (1982-11-01), Madry
patent: 4383132 (1983-05-01), Bentvelsen et al.
patent: 4398058 (1983-08-01), Gerth et al.
patent: 4472597 (1984-09-01), Uematsu
patent: 4501928 (1985-02-01), Ishitobi
patent: 4679898 (1987-07-01), Grooten
patent: 4703134 (1987-10-01), Uematsu
patent: 4725693 (1988-02-01), Hirsch
patent: 4729629 (1988-03-01), Saito et al.
"Thermal Exposure of Power Cables with Moisture Barriers"; by Bruce Robbins, Apr. 2-7, 1989.
"Reynolds LC Shielded Power Cable"; Indicates No Author and is Undated.
Hesterlee Jerry M.
Hughey, Jr. Raburn L.
Thrash, Jr. Frank R.
Myers, Jr. George C.
Nimmo Morris H.
Southwire Company
Tate Stanley L.
Wigman Victor M.
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