摘要:
Systems and methods for determining an effective wind speed are disclosed. A system includes a first detector, a second detector and a processing unit. The first detector includes a heated temperature-sensing element having a heater and a first temperature sensor, and a first housing at least partially housing the heated temperature-sensing element. The second detector includes a non-heated temperature-sensing element having a second temperature sensor, a second housing at least partially housing the non-heated temperature-sensing element. The processing unit can be adapted to determine the effective wind speed according to a temperature at the heated temperature-sensing element, a temperature at the non-heated temperature-sensing element, and/or a difference between these temperatures and in accordance with an algorithm or table of values. The heated and non-heated temperature-sensing elements and their respective first housing and second housing are collinear, proximal and parallel to the conductor, and protected from precipitation by a shield.
摘要:
The present invention is directed to a power line system having a number of controlled release mechanisms. A number of utility poles with cross bars each have a controlled release mechanism attached. A number of sensors are attached to the cross bars. A communication system is electrically connected to the sensors. A sector switch is electrically connected to the communication system. When the controlled release mechanism senses too much force on one of the utility poles it lowers the cross bar in a controlled manner to the ground. A sensor detects this and the communication system sends a message to the sector switch to open. When the storm or other threat is over, the cross bars can be raised by turning the winch in the controlled release mechanism.
摘要:
Systems and methods for determining an effective wind speed are disclosed. A system includes a first detector, a second detector and a processing unit. The first detector includes a heated temperature-sensing element having a heater and a first temperature sensor, and a first housing at least partially housing the heated temperature-sensing element. The second detector includes a non-heated temperature-sensing element having a second temperature sensor, a second housing at least partially housing the non-heated temperature-sensing element. The processing unit can be adapted to determine the effective wind speed according to a temperature at the heated temperature-sensing element, a temperature at the non-heated temperature-sensing element, and/or a difference between these temperatures and in accordance with an algorithm or table of values. The heated and non-heated temperature-sensing elements and their respective first housing and second housing are collinear, proximal and parallel to the conductor, and protected from precipitation by a shield.
摘要:
The present invention relates to problems how to keep cable arrangement functional, or at least make the damage as little as possible, after being exposed to different types of mechanical overloads. The problems are solved by methods and arrangements in which the securing means and the contact material of the securing means are arranged so that the cable can slide through the securing means when it is exposed to mechanical overloads.
摘要:
The present invention relates to problems how to keep cable arrangement functional, or at least make the damage as little as possible, after being exposed to different types of mechanical overloads. The problems are solved by methods and arrangements in which the securing means and the contact material of the securing means are arranged so that the cable can slide through the securing means when it is exposed to mechanical overloads.
摘要:
A method for increasing the current carried between two high voltage conductor support towers is provided. The method includes removing a first high voltage carrying cable mounted between the towers and replacing it with a composite core cable. This replacement of cable may be accomplished with existing cable hanging equipment and without the need for additional tooling.
摘要:
This invention relates to collet-type fittings (201) for use in collet-type splices and collet-type dead ends and methods for splicing together two aluminum conductor composite core reinforced cables (ACCC) or terminating one ACCC cable. The collet-type fittings (201) comprise a collet (202) coincident with a collet housing (204) to hold the composite cores. The composite cores can be stripped of the aluminum conductor to provide a bond between the collet (202) and the composite core. After inserting the composite core into the collet (202), a compression element (206) compresses the collet (202). The collet (202) holds the composite core with frictional forces and the collet (202) further compresses and strengthens the hold on the composite core if the composite core pulls the collet (202) further into the collet housing (204).
摘要:
The present invention provides an apparatus for connecting two pairs of conductors and one pair of ground wires and for allowing separation of the same upon the application of a tensional force upon at least one of the conductors or ground wires. The apparatus comprises two plates that each defines three holes configured to receive two conductors and a ground wire, wherein the plates are positioned adjacent to each other such that the respective holes in each plate are aligned such that the conductors and ground wires coming from each plate would be in physical contact. Three connectors hold the plates together. The first two connectors are configured to release the plates upon the application of a tensional force on the conductors or ground wires before the third connector releases the plates, thereby separating the conductors before separating the ground wires. Another embodiment addresses the same in multi-service connections.
摘要:
A method for increasing the current carried between two high voltage conductor support powers is provided. The method includes removing a first high voltage carrying cable mounted between the towers and replacing it a composite core cable.
摘要:
An apparatus for connecting two pairs of conductors and one pair of ground wires and for allowing separation of the same upon the application of a tensional force upon at least one of the conductors or ground wires. The apparatus includes two plates that each defines three holes configured to receive two conductors and a ground wire, wherein the plates are positioned adjacent to each other such that the respective holes in each plate are aligned such that the conductors and ground wires coming from each plate would be in physical contact. Three connectors hold the plates together. The first two connectors are configured to release the plates upon the application of a tensional force on the conductors or ground wires before the third connector releases the plates, thereby separating the conductors before separating the ground wires.