摘要:
Insulator for medium and high voltage electric lines comprising a supporting structural component for a plurality of ribs of insulating material characterised by the fact that said structural component is made as a single piece of high-performance thermoplastic polymeric material.
摘要:
Es wird ein Freileitungsmast mit einem stabförmigen und isolierten Mastkopf vorgeschlagen, wobei die stromführenden Leiter (4, 5, 6) an den Isolatoren (10) des isolierten Mastkopfes (3) befestigt sind und an der Mastspitze des isolierten Mastkopfes (3) ein Erdleiter (7) angeordnet ist. Der Erdleiter (7) ist über eine im Innern des Freileitungsmastes (1) verlaufende Erdleiterverbindung (8) galvanisch mit dem Erdpunkt (9) am Mastfuß verbunden. Die Erdleiterverbindung (8) ist von einer Isolierschicht (12) umhüllt. Die Isolierschicht (12) ist in Höhe der stromführenden Leiter (5, 6, 7) jeweils von einem Isolierkonus (13) umhüllt. Im oder auf jedem Isolierkonus verläuft eine ringförmige Elektrode (14). Ein isolierender Füllstoff (16) ist zwischen der Isolierschicht (12) bzw. den Isolierkonen (13) und den Isolatoren (10) des isolierten Mastkopfes (3) eingebracht.
摘要:
The present invention relates to a method for filling an electrical device for medium and high voltage transmission and/or distribution networks using a multicomponent insulating filler. The method is characterised by the fact that it comprises the following phases:
a) mixing the various components of the insulating filler separately with compressible microspheres; b) measuring the viscosity of the various components mixed with said microspheres at regular intervals; and when they have a substantially uniform viscosity c) mixing the various components obtained in said phase a) to obtain the multicomponent insulating filler; d) filling the free volume V with the multicomponent insulating filler obtained in said phase c), having previously extracted the air present in the free volume V using a vacuum pump; e) injecting a further quantity of insulating filler in overpressure.
摘要:
The present invention relates to a pole head (1) for supporting conductors and the like on poles for medium- and high-voltage overhead power lines, which has the particularity that it comprises at least one tubular portion which has a structural function, is made of electrically insulating composite material, and is fixed to a supporting structure. Coupling flanges (10) for supporting the electrical conductors are connected to the at least one tubular portion and are mutually spaced along the axis of the tubular portion.
摘要:
Insulator for medium and high voltage electric lines comprising a supporting structural component for a plurality of ribs of insulating material characterised by the fact that said structural component is made as a single piece of high-performance thermoplastic polymeric material.
摘要:
The present invention relates to a pole for overhead electricity transmission lines comprising a pole head of insulating material connected to a supporting structure. Said pole head supports electrical line conductors and a guard conductor positioned above. The distinctive feature of the invention is constituted by the fact that it comprises an earth conductor that is electrically connected to the guard conductor and passes externally to said pole head.
摘要:
The present invention relates to a polymeric insulator for supporting electrical lines and electrical components in general that comprises an electrically insulating body made of fibreglass with a thermosetting base resin forming connection points. The distinctive feature of the invention consists in the fact that it comprises a flange of thermoplastic polymeric material that forms an integral part of the aforesaid body at leats at one of the said connection points.
摘要:
The present invention relates to a pole for overhead electricity transmission lines comprising a pole head of insulating material connected to a supporting structure. Said pole head supports electrical line conductors and a guard conductor positioned above. The distinctive feature of the invention is constituted by the fact that it comprises an earth conductor that is electrically connected to the guard conductor and passes externally to said pole head.