Insulated, high voltage power cable for use with low power signal conductors in conduit
First Claim
2. The high voltage power cable of claim 1 wherein the soft magnetic material of the power cable insulation jacket comprises a soft ferrite magnetic material.
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Accused Products
Abstract
The present invention is directed to a high voltage, insulated electrical power cable suitable for use adjacent to one or more low power signal communications conductors in metal or plastic conduit or raceway. In one preferred embodiment, the power cable includes a first group of one or more conductors for supplying power and a power conductor insulation jacket enclosing the first group of one or more conductors. The power conductor insulation jacket includes a soft magnetic material that that functions as an electromagnetic field shield in the radio frequency range of approximately 1 megahertz to 400 megahertz thereby protecting the integrity of signals transmitted on the adjacent signal communications conductors.
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Citations
60 Claims
- 2. The high voltage power cable of claim 1 wherein the soft magnetic material of the power cable insulation jacket comprises a soft ferrite magnetic material.
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13. A high voltage, electrical power cable for transmitting high voltage power in proximity to one or more groups of low power signal conductors, the power cable comprising:
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a) a group of one or more high voltage power conductors; and
b) for each power conductor of the group of one or more high voltage power conductors, a power conductor insulation jacket overlying the power conductor, the power conductor insulation jacket including a soft magnetic material having a coercivity of 1 oersted or less. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A combination of a high voltage, electrical power cable, a group of one or more low power signal conductors and a section of conduit defining a longitudinal interior region, the power cable and the group of one or more signal conductors installed within the section of conduit and extending together along at least a portion of the longitudinal interior region of the section of conduit, the combination comprising:
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a) the section of conduit;
b) the group of one or more low power signal conductors; and
c) the power cable suitable for transmitting high voltage power and including a group of one or more power conductors and a power cable insulation jacket overlying the group of one or more power conductors, the power cable insulation jacket comprising a soft magnetic material and a binder material, the soft magnetic material having a coercivity of 1 oersted or less. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 37, 38)
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35-1. The combination of claim 35 wherein the fourth layer comprises PVC.
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36. The combination of claim 36 wherein the fourth layer comprise PTFE
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39. A combination of a high voltage, electrical power cable, a group of one or more low power signal conductors, separate from the power cable, and a section of conduit defining a longitudinal interior region, the power conductor electrical cable and the group of one or more low power signal conductors installed within the section of conduit and extending together along at least a portion of the longitudinal interior region of the section of conduit, the combination comprising:
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a) the section of conduit;
b) the group of one or more low power signal conductors; and
c) the power cable suitable for transmitting high voltage power and including a group of one or more power conductors, for each power conductor of the group of one or more power conductors, a power conductor insulation jacket overlying the power conductor, the power conductor insulation jacket including a soft magnetic material having a coercivity of 1 oersted or less. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 53)
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- 49. The combination of claim 44 further including a second layer overlying the metallic layer, the second layer comprising a soft magnetic material having a coercivity of 1 oersted or less.
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49-2. The combination of claim 48 further including a third layer overlying the second layer, the third layer comprising an organic insulation material.
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52. The combination of claim 394 wherein the conduit is comprised of metal.
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54. A combination of a high voltage, electrical power cable, a group of one or more low power signal conductors and a section of raceway defining a longitudinal passageway, the power cable and the group of one or more signal conductors installed within the section of raceway and extending together along at least a portion of the longitudinal passageway of the section of raceway, the combination comprising:
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a) the section of raceway;
b) the group of one or more low power signal conductors; and
c) the power cable suitable for transmitting high voltage power and including a group of one or more power conductors and a power cable insulation jacket overlying the group of one or more power conductors, the power cable insulation jacket comprising a soft magnetic material and a binder material, the soft magnetic material having a coercivity of 1 oersted or less. - View Dependent Claims (55, 56, 57)
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58-3. The combination of claim 58 wherein the raceway is comprised of metal.
Specification