Abstract:
A cable (10) includes a pre-selected number of binder units (12). Each binder unit includes an even number of paired couples of conductors (16a), evenly divided into quads (14), and an additional twisted pair of conductors (16b), coupled with and encircled around a length of a filler material (18), extended in parallel so the quads of conductor pairs (16a) surround the additional pair of conductors (16b) and the filler material (18). A binder unit wrap (20) encloses each binder unit and a foil free edge tape (24) is applied with the foil facing inwardly and a drain wire (25) pulled between the foil and the unit wrap. An overall core wrap (54) encloses each binder unit, and a shield is applied over the top of the overall core wrap such that the shield (52) surface faces inwardly for improved termination methods. An overall drain wire is placed between the overall core wrap (46) and overall shield (52) . The entire cable may be enclosed by a jacket or sheath (46). A method for forming the cable is also disclosed.
Abstract:
A quad cable construction and a method of manufacturing the same are provided for use in communications for a local area network, while offering significant vapor migration and petroleum immersion resistance characteristics. A cable is provided with inner and outer jackets encompassing a helix configuration of insulated signal conductors. A core filler is provided to substantially fill the core and interstices between the insulated signal conductors. The core filler and inner jacket are formed of vapor proof material and bound with the insulated signal conductors in a manner that substantially fills all grooves and crevices around the insulated signal conductors to substantially prevent vapor migration along the cable length. An outer jacket may be provided that is impervious to gas, thereby permitting the cable to be submerged in petroleum for extended periods of time without affecting operation.
Abstract:
Die Erfindung betrifft ein konfektionierbares Datenübertragungskabel mit mehreren Aderpaaren, die jeweils ein Paar miteinander verdrillter Adern umfassen. Zusätzlich ist ein durch die Aderpaare umgebener und an diesen anliegender zentraler Beilauf vorgesehen, mittels dessen die Aderpaare zueinander ausgerichtet sind. Außerdem sind mehrere Bündel von Beilauf-Fäden äquidistant in Umfangsrichtung um die Aderpaare angeordnet. Jedes Bündel von Beilauf-Fäden ist an zwei jeweiligen zueinander benachbarten Aderpaaren anliegend angeordnet. Dabei sind die Aderpaare zueinander einerseits durch den zentralen Beilauf und andererseits durch die Bündel von Beilauf-Fäden fixiert.
Abstract:
The present invention concerns a cable comprising an elongated conducting element and a self-healing material surrounding said elongated conducting element, characterized in that the self-healing material is a cross-linked material obtained from a polymeric composition comprising: A. a polymer matrix comprising at least one olefin polymer with hydrophilic moiety, and B. at least one amphiphilic compound, as self-healing additive.
Abstract:
The present disclosure relates to a power cable filler device (1) adapted to bear against a first power core and a second power core in a power cable. The power cable filler device (1) comprises a first arced wall (3) which defines a portion of a first circle (9) having a first diameter, a second arced wall (5) and a third arced wall (7), each defining a portion of a second circle (11) having a second diameter which is smaller than the first diameter, which first arced wall (3) has a first end (3a) connected to a first end (5a) of the second arced wall (5), and which first arced wall (3) has a second end (3b) connected to a first end (7a) of the third arced wall (7), wherein the second arced wall (5) has a second end (5b) and the third arced wall (7) has a second end (7b) adjacent each other and defining a slit (13), whereby a chamber is formed between the first arced wall (3), the second arced wall (5) and the third arced wall (7), a first partitioning wall (17a) in the chamber, extending between the first arced wall (3) and the second arced wall (5), and a second partitioning wall (17b) in the chamber, extending between the first arced wall (3) and the third arced wall (7), wherein the first partitioning wall (17a) extends in a first radial direction (19a) along its entire extension from the first arced wall (3) to the second arced wall (5), and wherein the second partitioning wall (17b) extends in a second radial direction (19b) along its entire extension from the first arced wall (3) to the third arced wall (7), which first radial direction (19a) and second radial direction (19b) are defined with respect to the radius of the first arced wall (3). A power cable is also disclosed herein.
Abstract:
A cable (110) includes first and second twisted pairs (126) of insulated conductors (128), a first inner shield (129) at least partially surrounding the first twisted pair. The first inner shield is at least partially conductive. A second inner shield (129) at least partially surrounds the second twisted pair. The second inner shield is at least partially conductive. An at least partially conductive outer shield (130) at least partially surrounds the first and second twisted pairs and the first and second inner shields such that the first and second twisted pairs and the first and second inner shields extend within an internal passageway (162) of the outer shield.
Abstract:
Wellbore electrical cables according to the invention include at least one insulated conductor, at least one layer of armor wires surrounding the insulated conductor, and a polymeric material disposed in the interstitial spaces formed between armor wires and interstitial spaces formed between the armor wire layer and insulated conductor which may further include wear resistance particles or even short fibers, and the polymeric material may further form a polymeric jacket around an outer, layer of armor wires. The insulated conductor is formed from a plurality of metallic conductors encased in an insulated jacket. The invention also discloses a method of preparing a cable by extruding first layer of polymeric material upon at least one insulated conductor; serving a first layer of armor wires upon the polymeric material; softening the polymeric material to partially embed armor wires; extruding a second layer of polymeric material over the armor wires; serving a second layer outer armor wires thereupon; softening the polymeric material to partially embed the second armor wire layer; and optionally extruding a third layer of polymeric material over the outer armor wires embedded in the second layer of polymeric material. Further disclosed are methods of using the cables of the invention in seismic and wellbore operations, including logging operations.
Abstract:
The present invention relates to a manufacturing process of a multipolar cable comprising at least one pair of cores, each core comprising at least one conductive element and at least one layer of electrical insulation in a position which is radially external to said at least one conductive element. This process comprises the steps of: a) assembling said at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between said cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to said cores so as to fill said interstitial zone and to form a filling layer of substantially zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric, and at least one containment layer of polymeric material in a position radially external to said filling layer. The present invention also relates to a multipolar cable obtained from said process.