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A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the inter

A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume and an end portion sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber. The housing wall of the housing end portion has an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume. The housing includes at least one axially-projecting engagement member located within the interior chamber at the engagement portion of the housing wall of the housing end portion.

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That which is claimed is: 1. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for conf

That which is claimed is: 1. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one axially-projecting circumferential spur located within the interior chamber at the engagement portion of the housing wall of the housing end portion. 2. The connector of claim 1, wherein the spur is defined by a circumferential groove in the engagement portion of the housing wall of the housing end portion, the groove having a generally radially inward facing recessed wall portion, and the spur having a generally radially outward facing wall portion spaced radially inward from the radially inward facing recessed wall portion of the groove to define a circumferential recess therebetween within the groove to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 3. The connector of claim 2, wherein the generally radially outward facing wall portion of the spur projects generally axially within the interior chamber, whereby the spur provides radial mating of the engagement portion of the housing wall of the housing end portion to the insulation jacket to resist radial separation therebetween after inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 4. The connector of claim 1, wherein the spur is a continuous member extending about the engagement portion of the housing wall of the housing end portion to provide a fluid-tight seal between the housing wall and the insulation jacket upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 5. The connector of claim 1, wherein the engagement portion of the housing wall of the housing end portion radially outward of the spur has a generally radially inward facing wall portion, and the spur has a generally radially outward facing wall portion spaced radially inward from the radially inward facing wall portion of the engagement portion to define a circumferential recess therebetween to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 6. The connector of claim 5, wherein the generally radially outward facing wall portion of the spur projects generally axially within the interior chamber, whereby the spur provides radial mating of the engagement portion of the housing wall of the housing end portion to the insulation jacket to resist radial separation therebetween after inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 7. The connector of claim 5, wherein the spur is a continuous member extending about the engagement portion of the housing wall of the housing end portion to provide a fluid-tight seal between the housing wall and the insulation jacket upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 8. The connector of claim 1, further including a circumferential first member located within the interior chamber at the engagement portion of the housing wall of the housing end portion and spaced radially outward of the spur, and a circumferential second member connecting the circumferential first member and the spur together, the circumferential first member having a generally radially inward facing wall portion, the spur having a generally radially outward facing wall portion spaced radially inward from the radially inward facing wall portion of the first circumferential member, and the circumferential second member having a generally axially facing wall portion, the wall portions of the circumferential first member, the spur and the circumferential second member defining a circumferential recess therebetween to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 9. The connector of claim 8, wherein the circumferential first member is attached to the engagement portion of the housing wall of the housing end portion. 10. The connector of claim 1, further including a circumferential member located within the interior chamber at the engagement portion of the housing wall of the housing end portion, the circumferential member having a generally radially inward facing wall portion spaced radially outward of the spur and a circumferential connection portion connected to and supporting the spur, the spur having a generally radially outward facing wall portion spaced radially inward from the radially inward facing wall portion of the circumferential member to define a circumferential recess therebetween to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 11. The connector of claim 10, wherein the circumferential member is attached to the engagement portion of the housing wall of the housing end portion. 12. The connector of claim 11, wherein the generally radially outward facing wall portion of the spur projects generally axially within the interior chamber, whereby the spur provides radial mating of the engagement portion of the housing wall of the housing end portion to the insulation jacket to resist radial separation therebetween after inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 13. The connector of claim 10, wherein the spur is a continuous member extending about the engagement portion of the housing wall of the housing end portion to provide a fluid-tight seal between the housing wall and the insulation jacket upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 14. A highpressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the hiqh-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastc limit of the a polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion haing an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end porton to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one axially-projecting circumferential spur located within the interior chamber at the engagement portion of the housing wall of the housing end portion, wherein the engagement portion of the housing wall of the housing end portion further includes inwardly projecting engagement members configured to deform and partially penetrate the insulation jacket along a periphery thereof to secure the housing wall to the insulation jacket. 15. The connector of claim 1, further including a conductor member configured to be secured to the housing, and to be secured to the stranded conductor and in electrical contact therewith. 16. The connector of claim 15, wherein the housing and the conductor member are a unitary member. 17. The connector of claim 16, wherein the conductor member has a wall defining an interior member chamber with an open end, the interior member chamber being sized to receive the stranded conductor therein and the member wall being of a crimpable material to secure the conductor member to the stranded conductor in electrical contact therewith upon inward crimping of the member wall. 18. The connector of claim 15, wherein the conductor member is a terminal crimp connector. 19. The connector of claim 15, wherein the conductor member is a splice crimp connector. 20. The connector of claim 15, wherein the conductor member is configured to be positioned within the interior chamber. 21. The connector of claim 20, wherein the conductor member is configured to be in fluid-tight sealed engagement with the housing. 22. The connector of claim 21, wherein the conductor member has a wall defining an interior member chamber with an open end, the interior member chamber being sized to receive the stranded conductor therein and the member wall being of a crimpable material to secure the conductor member to the stranded conductor in electrical contact therewith upon inward crimping of the member wall. 23. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric but below the elastic limit at the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one axially-projectng circumferential spur located within the interior chamber at the engagement portion of the housing wall of the housing end portion, wherein the housing includes at least one injection port in fluid communication with the interior chamber and configured to introduce the fluid into the interior chamber. 24. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of an inwardly deformable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward deformation of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one axially-projecting engagement member located within the interior chamber at the engagement portion of the housing wall of the housing end portion. 25. The connector of claim 24, wherein the engagement portion of the housing wall of the housing end portion has a generally radially inward facing wall portion, and the engagement member has a generally radially outward facing wall portion spaced radially inward from the radially inward facing wall portion of the engagement portion to define a circumferential recess therebetween to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 26. The connector of claim 25, wherein the generally radially outward facing wall portion of the engagement member projects generally axially within the interior chamber to provide radial mating of the engagement portion of the housing wall of the housing end portion to the insulation jacket to resist radial separation therebetween after inward deformation of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 27. The connector of claim 24, wherein the engagement member is a continuous member extending about the engagement portion of the housing wall of the housing end portion and provides a fluid-tight seal between the housing wall and the insulation jacket upon inward deformation of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 28. The connector of claim 24, wherein the engagement portion of the housing wall of the housing end portion radially outward of the engagement member has a generally radially inward facing wall portion, and the engagement member has a generally radially outward facing wall portion spaced radially inward from the radially inward facing wall portion of the engagement portion to define a circumferential recess therebetween sized to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 29. The connector of claim 24, further including a circumferential first member located within the interior chamber at the engagement portion of the housing wall of the housing end portion and spaced radially outward of the engagement member, and a circumferential second member connecting the circumferential first member and the engagement member together, the circumferential first member having a generally radially inward facing wall portion, the engagement member having a generally radially outward facing wall portion spaced radially inward from the radially inward facing wall portion of the first circumferential member, the wall portions of the circumferential first member and engagement member defining a circumferential recess therebetween to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 30. The connector of claim 24, further including a conductor member configured to be positioned within the interior chamber and configured to be secured to the housing and secured to the stranded conductor and in electrical contact therewith. 31. The connector of claim 30, wherein the conductor member is configured to be in fluid-tight sealed engagement with the housing. 32. The connector of claim 31, wherein the conductor member has a wall defining an interior member chamber with an open end, the interior member chamber being sized to receive the stranded conductor therein and the member wall being of a crimpable material to secure the conductor member to the stranded conductor in electrical contact therewith upon inward crimping of the member wall. 33. The connector of claim 32, wherein the housing and the conductor member are a unitary member. 34. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of an inwardly deformable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward deformation of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one axially-projecting engagement member located within the interior chamber at the engagement portion of the housing wall of the housing end portion, wherein the housing includes at least one injection port in fluid communication with the interior chamber and configured to introduce the fluid into the interior chamber. 35. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least first and second axially-projecting circumferential spurs located at the engagement portion of the housing wall of the housing end portion. 36. The connector of claim 35, wherein the first and second spurs are adjacent to each other. 37. The connector of claim 35, wherein the first and second spurs project in opposite axial directions toward each other. 38. The connector of claim 35, wherein the first and second spurs are axially spaced apart and project in opposite axial directions away from each other. 39. The connector of claim 35, wherein the first and second spurs are defined by a circumferential groove in the engagement portion of the housing wall of the housing end portion, the groove having a radially inward facing recessed wall portion, and the first and second spurs each having a generally radially outward facing wall portion spaced radially inward from the radially inward facing recessed wall portion of the groove to define a circumferential recess therebetween within the groove to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 40. The connector of claim 39, wherein the groove has a generally trapezoidal cross-sectional shape with the first and second spurs projecting in opposite axial directions toward each other. 41. The connector of claim 39, wherein the first and second spurs are positioned at opposite axial end portions of the groove. 42. The connector of claim 39, wherein the generally radially outward facing wall portions of the first and second spurs project generally axially within the interior chamber, whereby the spur provides radial mating of the engagement portion of the housing wall of the housing end portion to the insulation jacket to resist radial separation therebetween after inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 43. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid commmunication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulaton jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least first and second axially-projecting circumferential spurs located at the engagement portion of the housing wall of the housing end portion, wherein the first and second spurs are each continuous members extending about the engagement portion of the housing wall of the housing end portion to provide a fluid-tight seal between the housing wall and the insulation jacket upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 44. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the highpressure connector being suited for confining a fluid within the interstitial void volume at a residual ressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging at the engagement portion at the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume the housing having at least first and second axially-projecting circumferential spurs located at the engagement portion of the housing wall of the housing end portion, wherein the first and second spurs are each continuous members extending about the engagement portion of the housing wall of the housing end portion to provide a fluid-tight seal between the housing wall and the insulation jacket upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket, the housing further including a circumferential first member located within the interior chamber at the engagement portion of the housing wall of the housing end portion and spaced radially outward of the first and second spurs, and a circumferential second member connecting the circumferential first member together with the first and second spurs, the circumferential first member having generally radially inward facing first and second wall portions, the first and second spurs each having a generally radially outward facing wall portion, the radially outward facing wall portion of the first spur being spaced radially inward from the radially inward facing first wall portion of the first circumferential member to define a circumferential first recess therebetween to receive a first portion of the insulation jacket to secure the housing wall to the insulation jacket, and the radially outward facing wall portion of the second spur being spaced radially inward from the radially inward facing second wall portion of the first circumferential member to define a circumferential second recess therebetween to receive a second portion of the insulation jacket to secure the housing wall to the insulation jackets. 45. The connector of claim 44, wherein the circumferential first member is attached to the engagement portion of the housing wall of the housing end portion. 46. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least first and second axially-projecting circumferential spurs located at the engagement portion of the housing wall of the housing end portion, the housing further including a circumferential member located within the interior chamber at the engagement portion of the housing wall of the housing end portion and connected to and supporting the first and second spurs, the circumferential member having generally radially inward facing first and second wall portions, the first and second spurs each having a generally radially outward facing wall portion, the radially outward facing wall portion of the first spur being spaced radially inward from the radially inward facing first wall portion of the circumferential member to define a circumferential first recess therebetween to receive a first portion of the insulation jacket to secure the housing wall to the insulation jacket, and the radially outward facing wall portion of the second spur being spaced radially inward from the radially inward facing second wall portion of the circumferential member to define a circumferential second recess therebetween to receive a second portion of the insulation jacket to secure the housing wall to the insulation jacket. 47. The connector of claim 46, wherein the circumferential member is attached to the engagement portion of the housing wall of the housing end portion. 48. The connector of claim 46, wherein the generally radially outward facing wall portions of the first and second spurs project generally axially within the interior chamber, whereby the spur provides radial mating of the engagement portion of the housing wall of the housing end portion to the insulation jacket to resist radial separation therebetween after inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 49. The connector of claim 46, wherein the first and second spurs are each continuous members extending about the engagement portion of the housing wall of the housing end portion to provide a fluid-tight seal between the housing wall and the insulation jacket upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 50. The connector of claim 46, wherein the circumferential member includes a ring portion fixedly attached to the engagement portion of the housing wall of the housing end portion. 51. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in an insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure, the high-pressure connector comprising: a housing having a wall defining an interior chamber, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket with at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one circumferential groove in the engagement portion of the housing wall of the housing end portion, said groove forming at least one axially-projecting circumferential spur within the interior chamber at the engagement portion of the housing wall of the housing end portion. 52. The connector of claim 51, wherein the groove has a generally radially inward facing recessed wall portion, and the spur has a generally radially outward facing wall portion spaced radially inward from the radially inward facing recessed wall portion of the groove to define a circumferential recess therebetween within the groove to receive a portion of the insulation jacket to secure the housing wall to the insulation jacket. 53. The connector of claim 52, wherein the generally radially outward facing wall portion of the spur projects generally axially within the interior chamber, whereby the spur provides radial mating of the engagement portion of the housing wall of the housing end portion to the insulation jacket to resist radial separation therebetween after inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket. 54. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positioned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one circumferential groove located within the interior chamber at the engagement portion of the housing wall of the housing end portion, said groove having at least one axial dimension Xm which is greater than axial dimension Xr, wherein Xm is the maximum groove axial dimension at a radius greater than r but less then R, Xr is the groove axial dimension at radius r, R is an outer radius of the housing, and r is a radially inward radial position within the interior chamber whereat the dimension Xr of the groove is less than the dimension Xm of the groove. 55. The connector of claim 54, wherein r is the inner radius of the housing. 56. A high-pressure connector for an electrical power cable section having a central stranded conductor encased in a polymeric insulation jacket and having an interstitial void volume in the region of the stranded conductor, the high-pressure connector being suited for confining a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the polymeric insulation jacket, the high-pressure connector comprising: a housing having a wall defining an interior chamber configured to be in fluid communication with the interstitial void volume, the housing having an end portion with the housing wall thereof sized to receive the insulation jacket within the interior chamber and to overlap at least a portion of the insulation jacket at an end thereof with the cable section extending from the housing end portion and at least a portion of the stranded conductor positoned within the interior chamber, the housing wall of the housing end portion having an engagement portion comprised of a swagable material to secure the housing wall to the insulation jacket in fluid-tight sealed engagement therewith upon inward swaging of the engagement portion of the housing wall of the housing end portion to the insulation jacket to confine the fluid at the residual pressure within the interior chamber and the interstitial void volume, the housing having at least one circumferential roove located within the interior chamber at the engagement portion of the housing wall of the housing end portion, said groove having at least one axial dimension Xm which is greater than axial dimension Xr, wherein Xm is the maximum groove axial dimension at a radius greater than r but less then R Xr is the groove axial dimension at radius P is an outer radius of the housing, and r is a radially inward radial position within the interior chamber whereat the dimension Xr of the groove is less than the dimension Xm of the groove, wherein the engagement portion of the housing wall of the housing end portion further includes inwardly projecting engagement members configured to deform and partially penetrate the insulation jacket along a periphery thereof to secure the housing wall to the insulation jacket. 57. The connector of claim 56, wherein said groove has a trapezoidal cross-sectional shape.