Claims
- 1. Electrical power cable for use in distributing electrical power aboard a naval vessel, said electrical power cable comprising:
- a plurality of insulated electrical conductors each having a longitudinal extent and being helically intertwined with the other of said electrical conductors so as to form a core conductor assembly having at least a pair or other interstices adjacent said insulated electrical conductors;
- a water blocking layer disposed about said core conductor assembly so as to prevent passage of water along said interstices about said electrical conductors;
- a jacket layer disposed over and adjacent said water blocking layer so that said jacket layer is physically associated with said water blocking layer; and
- at least a pair of strip cords, each said strip cord being disposed between said core conductor assembly and said jacket layer, so that when each said strip cord is pulled along the longitudinal extent of said insulated electrical conductors, said pulled strip cord cuts both said water blocking layer and said jacket layer.
- 2. The electrical power cable of claim 1, wherein said water blocking layer is formed of a first cross-linkable material, said jacket layer is formed of a second cross-linkable material and said jacket layer is covalently bonded to said water blocking layer, and wherein each said strip cord comprises high tensile strength fibers.
- 3. The electrical power cable of claim 2, wherein both said first material and said second material are polyolefins.
- 4. The electrical power cable of claim 3, wherein the first material is a polymer blend.
- 5. The electrical power cable of claim 3, wherein at least one of said first and second materials is derived from at least one monomer selected from methyl acrylate, ethyl acrylate, acrylic acid, a-olefins, and diolefins.
- 6. The electrical power cable of claim 5, wherein at least one of said first and second materials is a copolymer selected from the group consisting of ethylene/vinyl acetate, ethylene/methyl acrylate, ethylene/ethyl acrylate, ethylene/acrylic acid, and ethylene/propylene.
- 7. The electrical power cable of claim 5, wherein at least one of said first and second materials is a terpolymer of ethylene, propylene, and not more than about 10 wt. % of a diolefin.
- 8. The electrical power cable of claim 4, wherein said polymer blend includes at least one polyolefin derived from one or more monomers selected from the group consisting of ethylene, propylene, vinyl acetate, methyl acrylate, ethyl acrylate, acrylic acid, .alpha.-olefins, and diolefins.
- 9. The electrical power cable of claim 4, wherein said polymer blend includes a polyolefin blended with at least one of chlorinated polyethylene, chlorosulfonated polyethylene, and butadiene acrylonitrile copolymer.
- 10. The electrical power cable of claim 3, wherein said first material is a polymer blend of ethylene propylene diene terpolymer (EPDM) and ethylene propylene rubber (EPR) or a blend of EVA and EPR, and said second material is ethylene vinyl acetate copolymer (EVA).
- 11. The electrical power cable of claim 2, wherein said first cross-linkable material is partially cross-linked.
- 12. Electrical power cable for use in distributing electrical power aboard a naval vessel, said electrical power cable comprising:
- a plurality of insulated electrical conductors each having a longitudinal extent and being helically intertwined with the other of said electrical conductors so as to form a core conductor assembly having at least a pair of outer interstices adjacent said insulated electrical conductors;
- a water blocking layer formed of a first cross-linkable material disposed about said core conductor assembly and said strip cords so at to prevent passage of water along said interstices about said electrical conductors; and
- a jacket layer formed of second cross-linkable material disposed over and adjacent said water blocking layer so that said jacket layer is physically associated with said water blocking layer, wherein said second cross-linkable material is cross-linked; and
- at least a pair of strip cords, each said strip cord being disposed between said core conductor assembly and said jacket layer so that when each said strip cord is pulled along longitudinal extent of said insulated electrical conductors, said pulled strip cord cuts both said water blocking layer and said adjacent layer.
- 13. Electrical power cable for use in distributing electrical power aboard a naval vessel, said electrical power cable comprising:
- a plurality of insulated electrical conductors each having a longitudinal extent and being helically intertwined with the outer of said electrical conductors so as to form a core conductor assembly having at least a pair of outer interstices adjacent said insulated electrical conductors;
- a water blocking layer formed of a first cross-linkable material disposed about said core conductor assembly and said strip cords so as to prevent passage of water along said interstices about said electrical conductors;
- a jacket layer formed of a second cross-linkable material disposed over and adjacent said water blocking layer so that said jacket layer is physically associated with said water blocking layer, wherein said first cross-linkable material is cross-linked to said second cross-linkable material; and
- at least a pair of strip cords, each said strip cord being disposed between said core conductor assembly and said jacket layer; so that when each said strip cord is pulled along the longitudinal extent of said insulated electrical conductors, said pulled strip cord cuts both said water blocking layer and said jacket layer.
- 14. The electrical power cable of claim 1, wherein said water blocking layer is partially cross-linked.
- 15. The electrical power cable of claim 1, wherein said jacket layer is cross-linked.
- 16. The electrical power cable of claim 1, wherein said water blocking layer is cross-linked to said jacket layer.
- 17. The electrical power cable of claim 1, wherein each said strip cord comprises high tensile strength fibers.
Parent Case Info
This application is a continuation of U.S. application Ser. No. 07/644,940 filed Jan. 23, 1991, now U.S. Pat. No. 5,166,473.
US Referenced Citations (18)
Non-Patent Literature Citations (2)
Entry |
"Class 200 Fire Stop products" by Nelson. |
"Product Data Sheet" Section 8: Sheet 2 of the Okonite Company, Ramsey, New Jersey, May 1986. |
Continuations (1)
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Number |
Date |
Country |
Parent |
644940 |
Jan 1991 |
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