摘要:
The present invention relates to a cable jacket made from a fluorinated polyurethane polymer comprising recurring units derived from at least one hydroxy-terminated (per)fluoropolyether polymer.
摘要:
A cable arrangement for feeding power and signals to downhole equipment, such as an electrically submersible pump (6), within an oil or gas well, comprising an upper suspension element (15), a lower connector (22), a docking station (11′) for the downhole equipment coupled to said connector (22), and a cable (8a), comprising lines for power and signal. The cable extends between, and is coupled to, the upper suspension element (15) and the lower connector (22). The docking station (11′) is adapted for attachment to the inner surface of a production tubing (5), that a narrow gap is formed between the production tubing (5) and the downhole equipment (6). The cable (8) is shaped to fit inside the gap by having a first dimension in the radial direction of the gap, which is smaller than the gap and a second dimension in the tangential direction of the gap, which is substantially larger than the first dimension.
摘要:
An optical electronic device (1) comprises: a casing (10) having an external surface provided with an opening (16); a cable (50) inserted through the opening (16); a bush (60) attached to the cable (50); and a resin sealing portion (80). The bush (60) is brought into close contact with the cable (50) and the casing (10) to seal a gap between the cable (50) and the casing (10). The resin sealing portion (80) is provided locally inside the casing (10) to cover an internal surface of a portion of the casing (10) surrounding the opening (16) and a surface of a portion of the cable (50) drawn from the opening (16) into the casing (10).
摘要:
The invention relates to an electrical cable (2) comprising a cable bundle (4) formed by at least two single wires (6), each single wire comprising a conductor (8) surrounded by insulation (10). An adhesive layer (12) is applied to at least one, preferably to all single wires (6), surrounding the insulator (10) in a ring-like manner, via which adhesive layer the single wires (6) are adhered to one another. The cable bundle (4) does not also comprise a cable sheath surrounding the cable bundle (4). In particular, the adhesive layer is formed by a reactive coating that is cured after activation so that a thermally stable connection can be achieved. In particular, the cable bundle is formed by single wires (6) that are twisted with one another, and which are used, in particular, as a data line. This structure, with the adhesive layer (12), removes the need for a cable sheath so that a more compact structure can be achieved. At the same time, the form of the cable bundle (4), in particular the lay length, is fixed, having a positive effect on the transmission characteristics for a data line.
摘要:
A cable that has a cable core (110) with a first armor wire layer (120) and a second armor wire layer (140). The second armor wire layer is segregated from the first armor wire layer, and an outer jacket (150) is disposed about the second armor wire layer.
摘要:
A wire harness exterior member (16) includes a flexible tube portion (23), an inflexible tube portion (24), and a post-attached part (17) attached to a boundary between the flexible tube portion and the inflexible tube portion. The post-attached part is attached such that at least a portion of an attaching surface (36) of a rigid attaching portion (28) overlaps the flexible tube portion.
摘要:
The present invention discloses electrical cables containing a cable core and a plurality of conductive elements surrounding the cable core. The cable core contains at least one composite core, and each composite core contains a rod which contains a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix, and surrounded by a capping layer.
摘要:
An AC cable that includes at a plurality of conductor assemblies within a metal armored sheath. Each conductor assembly has an electrical conductor, an insulation layer extending around and along the length of each of the electrical conductors, a jacket layer disposed around the insulating layer and a polymeric protective layer disposed around the jacket layer along the length of each of the electrical conductors. A bonding strip is disposed within the metal sheath and is in contact with the interior surface of the metal sheath to provide an electrical low-impedance fault return path for the AC cable.