The present invention pertains to a cable comprising: —at least one conductor coated by an insulation coating layer, —a first protective layer surrounding said insulation coating layer, said first protective layer at least comprising, but preferably being made of a tetrafluoroethylene (TFE) copolymer comprising from 0.8% to 2.5% by weight of recurring units derived from at least one perfluorinated alkyl vinyl ether having formula (I) here below: CF.sub.2═CF—O—R.sub.f, wherein R.sub.f is a linear or branched C.sub.3-C.sub.5 perfluorinated alkyl group or a linear or branched C.sub.3-C.sub.12 perfluorinated alkyl group comprising one or more ether oxygen atoms, said TFE copolymer having a melt flow index comprised between 1.0 and 6.0 g/10 min, as measured according to ASTM D1238 at 372° C. under a load of 5 Kg [polymer (F)]; —optionally, a second protective layer surrounding said first protective layer, and —an armor shell surrounding said first or second protective layer. The invention also pertains to use of the cable in downhole wells.

A hybrid cable may include a central strength member and a plurality of buffer tubes helically wrapped around the central member. Each of the plurality of buffer tubes may house at least one optical fiber, and an outer jacket may surround the plurality of buffer tubes and the central strength member. Additionally, the central strength member may include one or more carbon nanotubes capable of transmitting a power signal.

The present disclosure relates to a cable assembly including a sleeve and a plurality of cables that extend through the sleeve. The cable assembly also includes a grommet positioned within the sleeve at a location offset from one end of the sleeve. The grommet forms a dam location. The cable assembly further includes a bonding material at least partially filling a region of the sleeve located between the dam location and the end of the sleeve. The bonding material bonds the fiber optic cables and the grommet relative to the sleeve. The cables extend through the grommet and the bonding material and include break-out portions that extend outwardly beyond the end of the sleeve.

A hybrid jumper cable assembly includes: a plurality of power conductors; a plurality of optical fibers; a jacket surrounding the power conductors and the optical fibers; one or more connectors connected with the power conductors and the optical fibers; and a fuse electrically connected with one of the plurality of power conductors.

A power and data connectivity micro grid includes a first power sourcing equipment device having first and second power ports and first and second data ports, and configured to deliver DC power signals to the first and second power ports. The micro grid further includes first and second remote distribution nodes, and first and second splice enclosures, each splice enclosure having a power input port, a data input port, a power tap port, a data tap port, a power output port and a data output port. A first composite power-data cable is coupled between the first power port and the first data port of the first power sourcing equipment device and the power input port and the data input port of the first splice enclosure. A second composite power-data cable is coupled between the second power port and the second data port of the first power sourcing equipment device and the power input port and the data input port of the second splice enclosure. The power tap port and the data tap port of the first splice enclosure are coupled to a power input port and a data input port of the first remote distribution node, respectively.

A thermal management system for a power and fiber splice enclosure that includes a housing including electrical components is provided. The thermal management system includes a solar shield disposed external to the housing and covering at least a major portion of the housing. The thermal management system includes a vent disposed in the housing for venting hot air from the enclosure. The thermal management system includes a condenser thermally coupled to a heat conducting component of the enclosure for cooling at least the heat conducting component

The present disclosure relates to a power unit and a power cable for a mobile communication base station, which have sufficiently low inductance and thus minimize voltage oscillation regardless of a change of the amount of power transmitted when communication load of a mobile communication base station increases, thereby providing stable communication services, and which enhance workability of connection to a remote radio unit (RRU) at a base station.

A hybrid electro-optic (EO) wireline cable includes optical fibers strategically placed within to allow acoustic sensing methods as well as provide power and electrical telemetry. The hybrid EO wireline cable contains optical fibers in the interstices among symmetrically arranged electrical wire bundles to allow a hybrid EO cable to be concurrently used for electrical telemetry and optical fiber sensing without interference in a wellbore environment. This hybrid EO cable maintains electric and magnetic field symmetry which allows an optimal electrical signaling rate through orthogonal propagation modes. By placing optical fibers symmetrically inside the interstitial spaces between electrical wire bundles, the cable maintains its optimal signaling rate and avoids the mechanical and electrical limitations that would be introduced when combining electrical wires and optical fibers in a wireline cable.

Devices, systems and methods to prevent damage to power and communication conductors located in cold occurring regions, with an elongated cylindrical tubular assembly of closed cell foam within a braided/woven layer that can be sealed to provide longitudinal strength and a snag resistant durable and flexible outer coating. The assembly along with communication and power lines is pulled through new power and communication ducts and conduits and in retrofitting existing power and communication ducts, so that the assembly reduces the volume spacing in the ducts/conduits that can be damaged by water intrusion which expands during freeze conditions.

A fiber optic cable splice case may include (1) an outer enclosure with a plurality of cable funnels defining paths from an exterior to an interior of the outer enclosure, (2) a clamp connected to the exterior of the outer enclosure, where the clamp attaches the outer enclosure to a powerline conductor, and (3) an inner enclosure positioned at least partially within, and rotatably coupled to, the outer enclosure, where the inner enclosure defines (a) a splice cavity within the inner enclosure, where the cavity is configured to store an optical fiber splice tray for coupling corresponding optical fibers of each of a pair of fiber optic cable segments and (b) a cable channel about an exterior of the inner enclosure, where the cable channel carries a portion of each of the pair of segments between the funnels and the cavity. Various other components and methods are also disclosed.