1255results about "Cable installations on ground" patented technology

This is a method for use in automated screening of tickets for plant protection based on negative feedback from past performance. In particular this invention provides an automated screening process that takes a dig ticket address from a ticket request and correlates it to known cable locations to determine which ticket dig addresses are too close to the buried fiber. This is done using a method that balances the risk of extra labor charges due to a Type I error with the risk of costs associated with a cable cut due to a Type II error.

A transmitter for a line locator system that controls the electrical current, voltage or power applied to the target line is disclosed. Control of the electrical output of the transmitter can be achieved passively or by means of a feedback control system. A transmitter connected directly to a line can include an operator control and monitoring of current being supplied to a line to be located. Some transmitters include a current regulating circuit that controls current supplied to a line. In some transmitters, feedback controllers and feedback loops are used to regulate output current, voltage or power. Some control loops are based on monitoring currents in circuits; some control loops monitor power output from an inductive mode transmitter antenna. An inductively coupled transmitter with power output control is also disclosed.

Conduit spacers useful in preparing duct banks are disclosed. The conduit spacers are designed for attachment to each other in vertical and horizontal combinations, that is, they may be arranged in side-by-side arrays, up-and-down arrays, or arrays that are both side-to-side and up-and-down. Thus, the conduit spacers include both vertical and horizontal restraints or interlocks. The vertical interlocks are achieved by the use of tapered tabs and tapered slots, both the tabs and the slots having tapers in the same horizontal direction. Horizontal interlocks are made by the use of rails and matching grooves in the sides of the spacers. Thus, both vertical and horizontal interlocks are achieved by assembling the ducts in a horizontal direction, side-by-side as desired for width, and up-and-down as desired for height. The number and length of conduits and the length of the duct banks needed dictate how many spacers are needed.

The invention discloses an anchor device of a photoelectric composite submarine cable platform anchor device, comprising a base and a holding and fixing mechanism, wherein the base is provided upwards with a fixing lug boss, the fixing lug boss is provided with an inverted cone-shaped hole, the inverted cone-shaped hole is internally provided with an inverted cone-shaped sleeve, the inverted cone-shaped sleeve is provided with a connection part, and the connection part is fixedly connected with the fixing lug boss. The inverted cone-shaped hole and the inverted cone-shaped sleeve are mutually matched, and the inverted cone-shaped sleeve is connected with the fixing lug boss through the connection part; therefore when in use, armoring steel wires of submarine cables are paved on the inner surface of the inverted cone-shaped hole firstly, and then the inverted cone-shaped sleeve is pressed on the armoring steel wires so that the armoring steel wires are positioned between the inner surface of the inverted cone-shaped hole and the outer surface of the inverted cone-shaped sleeve and the inner surface of the inverted cone-shaped hole is closely connected with the outer surface of the inverted cone-shaped sleeve, the inverted cone-shaped sleeve is steadily fixed on the fixing lug boss by the connection part, the end heads of the armoring steel wires are bent and tightly pressed between the connection part and the fixing lug boss due to the downward pressure, in addition, the self-weight of the submarine cables can connect the inverted cone-shaped sleeve and the inverted cone-shaped sleeve tightly, thus the submarine cables are effectively fixed.

The invention discloses an on-site overhanging protection method of a high-voltage cable bailey truss under the condition of excavation of a foundation pit and relates to the technical field of construction. The on-site overhanging protection method includes steps of (1) anchoring an upright of the bailey truss; (2) erecting the bailey truss; (3) excavating locally under a cable; (4) forming an overhanging system; (5) overhanging the cable; (6) demounting an original cable groove; (7) excavating the foundation pit; (8) newly building a cable groove and demounting the overhanging system. The overhanging protection system for all high-voltage cables can be completed before excavation of the foundation pit in the corresponding positions, and during construction of the high-voltage cable overhanging protection system, and relevant staff of the power sector is invited to monitor and guide on the site. Meanwhile, wrapping protection of cables and cable joints is implemented by cooperation with the power sector, and construction safety is sufficiently guaranteed.

An electrical power transmission line having at least one electrical cable, a conduit of ferromagnetic material enclosing the electrical cable and having a base and a cover and electrical contact elements for electrically connecting the base and the cover, wherein the electrical contact elements are metal fusion joints or metal resilient members suitable to pierce the ferromagnetic material.

The invention discloses a combined cable trench, which comprises a trench body and a bracket. Each side of the trench body is provided with a row of reserved cable bracket holes along the length direction of the trench; the bracket is directly embedded in the reserved hole by an embedding method; and then the reserved bracket hole is blocked with cement mortar on the tail part of the bracket. Compared with the prior art, the combined cable trench ensures more convenient manual operation, and the cable trench body can be industrially produced by using a pre-fabricating form and then assembled on site so as to get rid of the on-site construction without influence on the working environment; the cable trench is assembled with the bracket in one step and then lifted for connection; and the cable trench has the advantages of quick assembling speed, high efficiency, low construction cost, high overall strength and high durability.

The invention relates to a concrete cable channel construction process which comprises the following steps of: measuring, positioning and digging groove for earthwork; pouring and curing concrete on a cushion layer; binding rebar; pouring and curing concrete on a bottom plate; and assembling side wall steel formworks and installing embedded parts, wherein the side wall steel formworks are provided with split bolt holes and the inner and the outer steel formworks of a side wall are fixed by split bolts to determine a distance between the steel formworks at both sides of the side wall. According to the concrete cable channel construction process provided by the invention, the steel formworks are assembled to form the side wall, are tightly assembled and are difficult to deform, so that the concrete construction of a cable channel is formed in one step, a channel wall is flat and smooth and joints are flat without leaking paste after the formworks are disassembled, and the quality of the concrete surface of the channel wall of the cable channel can reach the fair-faced concrete quality level without secondary painting.

Provided is a method of identifying a location and/or type of buried device by a device identifier fill covering the buried device. Also provided is a buried device under the device identifier fill.

The present invention is directed to cable trailer that can carry a cable drum having a weight up to 10 ton. The cable trailer is designed to carry and unwind cable from the cable drum and direct and lay the cable in or along a trench. The cable trailer has a trailer chassis with an internal aperture enclosed by a tail gate. The tail gate can open or be removed to provide access to the space of the internal aperture for the cable drum. The cable trailer has two mounting arms to mount the cable drum. The cable trailer has a bridge with a cable director to facilitate removing cable from the cable drum and at least one cable support arm extendable from a side of the chassis for directing and laying of the cable.

A method of installing an off-shore tidal hydroelectric turbine generator is described. The method provides for a number of safety features, ensuring that all components are safe to handle during the installation operation, and also ensuring that the turbine will not start spinning during the installation operation.

An underwater cable protection pipe (11) is comprised of two identical longitudinal half-pipe sections (13, 13') interconnectable with one another by integrally formed mating connectors (14). The half-pipe sections (13, 13'), when interconnected together, form a longitudinal hollow pipe (11) having a stub end (15) and an articulatable clamping ball end (16) shaped to clampingly receive the stub end (15) of a like pipe (11) to interconnect two or more of the pipes (11) end-to-end about a submerged cable (12).

The invention relates to a lifting method of a submarine cable terminal landing platform, which comprises the following steps: 1) drawing a steel wire rope of a hoist of the platform onto a deck of a cable laying ship; 2) connecting a lute head short rope on a submarine cable dragging head; 3) mounting a clamp on a submarine cable; 4) connecting the steel wire rope of the hoist of the platform with the clamp, and laying and fixing the steel wire rope on the submarine cable through a plurality of binding bands; 5) connecting the steel wire rope of the hoist with the short rope into a whole in the position of the end of the submarine cable; 6) performing smooth treatment on all connecting points; 7) starting a cable laying machine on the cable laying ship of the hoist of the platform to synchronously send out the submarine cable, removing a steel wire rope clip after the head of the submarine cable is out of a submarine cable protecting pipe, untying the binding bands one by one, and separating the steel wire rope from the submarine cable; and 8) placing the submarine cable on the deck till the clamp is out of the submarine cable protecting pipe, and enabling the submarine cable to land the platform. The whole process adopts the continuous operation almost, the head of the submarine cable is rapidly lifted in place, the operation is time-saving and labor-saving, operation ship days are reduced, and the working efficiency is improved.

A cooling device for cooling a cable assembly, containing an outer pipe, which is designed to accommodate the cable assembly in such a way that an intermediate space for accommodating a cooling water layer remains between the outer pipe and the cable assembly, a connecting element for creating a water-tight connection between the outer pipe and the cable assembly, and a pressure controller for controlling the water pressure in the cooling water layer, is provided. A cable device is also provided, including an electric cable assembly, and a cooling device. A wind farm is also provided, including a number of cable assemblies for transmitting electrical power from wind turbines and including a number of cooling devices for cooling the cable assemblies. A method for providing a cooling device for a cable assembly is further provided.