A cover assembly for covering an elongate substrate includes a resilient, elastically expandable sleeve member and a holdout device. The sleeve member defines an axially extending inner sleeve passage. The holdout device includes a generally tubular, flexible bladder sleeve mounted in the inner sleeve passage. The bladder sleeve defines a cavity and a holdout passage to receive the elongate substrate. The cavity is inflated or inflatable with an inflation gas.

The present disclosure relates to a power cable and an intermediate connection structure, for connection thereof, which is capable of preventing the concentration of stress on a soldered part, which is configured to join a metal sheath of the power cable and a metal sheath restoration layer of the intermediate connection structure while ensuring airtight or watertight sealing therebetween, preventing deformation of or damage to the soldered part due to stress applied thereto, and minimizing thermal history in the power cable during the formation of the soldered part.

An electrical connector assembly includes an electrical conductor, a cable support, a housing, and a cap. The cable support includes a retainer arm and a cable support protrusion. The housing includes a housing recess and a housing protrusion. The cable support protrusion of the cable support interacts with the housing recess on the housing to support the cable support within the housing. The cap includes a locking mechanism and a tab. The housing protrusion on the housing and the locking mechanism on the cap interact to selectively retain the cap on and release the cap from the housing, and the retaining arm of the cable support and the tab of the locking mechanism interact to selectively move the retaining arm into and out of engagement with the electrical conductor.

An electrical connector assembly includes an electrical conductor, a cable support, a housing, and a cap. The cable support includes a retainer arm and a cable support protrusion. The housing includes a housing recess and a housing protrusion. The cable support protrusion of the cable support interacts with the housing recess on the housing to support the cable support within the housing. The cap includes a locking mechanism and a tab. The housing protrusion on the housing and the locking mechanism on the cap interact to selectively retain the cap on and release the cap from the housing, and the retaining arm of the cable support and the tab of the locking mechanism interact to selectively move the retaining arm into and out of engagement with the electrical conductor.

The invention discloses a pipeline detection device, which comprises: a mounting frame provided in a three-layer structure; a first wire spool mounted at a middle layer of the mounting frame and wound with a first climbing wire, wherein the first climbing wire is connected to a first detection camera, and a photographing direction of the first lens extends along an axial direction of the first climbing wire; a second wire spool mounted at a bottom layer of the mounting frame, wherein the second climbing wire is connected to a second detection camera, a photographing direction of the second lens extends along an axial direction of the second climbing wire, and a photographing direction of the third lens extends along a radial direction of the second climbing wire. The invention solves the problem that the existing pipeline detection device cannot adapt to the detection requirements of different pipeline environments.

A connection seat includes a base including a top plate and a pedestal connected to each other, a metal member including a body and at least one grounding end, a press cover including a protruding portion, and a flexible concatenation portion connecting the base and the press cover. The base further includes a first trench located on the top plate, a second trench located between the top plate and the pedestal, and a through-hole running through the top plate and the pedestal. A coaxial cable can extend into the base along the first trench, to be detachably mounted to the base. The body extends into the second trench to engage the metal member with the base, and the grounding end extends out of the pedestal. When the concatenation portion is bent such that the press cover covers the top plate, the protruding portion correspondingly protrudes toward the through-hole.

A connection seat includes a base including a top plate and a pedestal connected to each other, a metal member including a body and at least one grounding end, a press cover including a protruding portion, and a flexible concatenation portion connecting the base and the press cover. The base further includes a first trench located on the top plate, a second trench located between the top plate and the pedestal, and a through-hole running through the top plate and the pedestal. A coaxial cable can extend into the base along the first trench, to be detachably mounted to the base. The body extends into the second trench to engage the metal member with the base, and the grounding end extends out of the pedestal. When the concatenation portion is bent such that the press cover covers the top plate, the protruding portion correspondingly protrudes toward the through-hole.

A high-voltage device for receiving a high-voltage cable having a conductor designed to conduct an electrical current and a cable insulation surrounding the conductor, includes an insulation and a waveguide. The insulation includes an at least partly transparent or translucent field control unit from a siloxane polymer which is designed to at least partly surround the cable insulation of the high-voltage cable, the siloxane polymer including, in at least one portion of the field control unit, covalently bonded fluorophores and/or dielectric pigments. The waveguide is arranged such that a light signal caused by a partial discharge in the field control unit can be coupled from the field control unit into the waveguide.

A sealing unit (28) that fits within the sealing unit opening (26) of a housing 22. The sealing unit (28) including a sealant arrangement (32) that define a plurality of cable ports (30). The sealing arrangement is also configured for providing a peripheral seal between the housing (22) and the sealing unit (28). The sealing unit (28) includes an actuation arrangement (31) for pressurizing the sealant arrangement (32) within the sealing unit opening (26). The sealant arrangement (32) includes a plurality of sealing modules (33a-33e) each sized to form only a portion of the pressure actuated sealant arrangement (32).

While laying a subsea cable, an exposed cut off end of the cable is exposed to water prior to permanently sealing off this cable end. To prevent damage to the cable due to contact with the often salt water, due to for example oxidation, a temporarily watertight seal is to be applied to the cut off end. A method for applying this seal is provided which comprises applying a mouldable sealant to the exposed end wherein the sealant acts as a watertight barrier between the water and the cut off end of the cable. The sealant may comprise an intermediate layer between the cut off end and a watertight outer layer arranged to increase adhesion between the cut off end and the outer layer. This allows a broader range of outer layer materials to be used as the outer layer material does not need to adhere directly with the cable.