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1651 results about "Cable tray" patented technology

In the electrical wiring of buildings, a cable tray system is used to support insulated electrical cables used for power distribution, control, and communication. Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in commercial and industrial construction. They are especially useful in situations where changes to a wiring system are anticipated, since new cables can be installed by laying them in the tray, instead of pulling them through a pipe.

Multi level cable bus system with modular cable trays

ActiveUS20120111598A1Minimizing phase impedanceMinimize of excessive heatingPipe supportsElectrical apparatusCable transmissionPower cable
A cable bus system for the mounting and positioning of high amperature, from low to high voltage electrical power cables transmitting polyphase electrical current. The cable bus system included a ventilated enclosure used to protect electrical cables mounted therein. The enclosure is provided with multiple modular cable trays which are bolted together in a stacked arrangement to form a single multi-level cable raceway. The enclosure is further provide with ventilated top and bottom covers which are secured respectively to the top and bottom of the uppermost and bottommost calve trays to define the enclosed metal circuit. The cable bus system is capable of transmitting the same highest allowable “free air” cable amperature in both above and underground installations, effectively improving the transmission of electrical power from one end to the other end in installations where a transition of electrical power from on the ground is either necessary or economically preferable. For the underground portion, the cable bus is installed in the encasement that is uniquely offset vented or power cooled to meet the cable high amperage requirements. This cable bus system is also suitable for high vertical rise installations when utilizing anti cable slip mechanism or technique.
Owner:PAWLUK ROBERT R

Design method for cable laying and cable laying system

InactiveCN106021758AClear pathEffective planning of laying routesSpecial data processing applicationsCable trayMeasuring instrument
The invention relates to a design method for cable laying and a cable laying system. The method comprises following steps: creating a three-dimensional model for a cable channel; setting up a cable channel model database; planning layers of the cable channel, the number of layers of the cable channel and the arrays of the cable channel, and encoding the cable channel in a segmented manner, arrays and layers; setting up an equipment positioning database; planning positions of a measuring instrument and control equipment on the spot; guiding the cable channel model database and the equipment positioning database into cable laying software and inputting setting value; and finishing a best cable laying path design after a cable laying path list is automatically generated by cable laying software. The design method for cable laying and the cable laying system have following beneficial effects: by automatically generating the cable path list, deign efficiency is increased; by effectively planning the cable laying path, cable bridges can be reasonably distributed; the problem of repeatedly laying due to unresonable laying of circuits is eliminated; investment waste is avoided; engineering speed is ensured; a clear cable path is provide for a foundation of precise cable length calculations.
Owner:CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD

Cable laying device

The invention discloses a cable laying device. The cable laying device comprises a base, cable trays, a cable, a fixing frame, a guide support and a third pulley; three groups of universal wheels are distributed on each side below the base; two supporting columns are symmetrically arranged above the bilateral sides of the left end of the base respectively; supporting frames are fixedly arranged on the bilateral sides of the outer wall of each supporting column respectively; a hydraulic jack is fixedly arranged at the upper end of each supporting column; a supporting groove which is in a circular arc shape is fixedly formed above each hydraulic jack; a rotating shaft is arranged between the two supporting grooves in a straddled mode; the cable trays are arranged in the supporting grooves through the rotating shaft respectively; the upper end of the guide support is provided with a beam; an elastic guide device is fixed in the middle of the bottom surface of the beam; an elastic guide base, a first guide wheel and a spring are arranged in the elastic guide device. According to the cable laying device, the operation is simple, the use is convenient, the height of each cable supporting frame can be adjusted, the friction force in the movement process of the cable is reduced due to a pulley group, and accordingly the labor intensity of the construction personnel is reduced.
Owner:STATE GRID CORP OF CHINA +2
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