Anti-induction electric pulley structure for overhead line pay-off and method
The invention relates to an anti-induction electric pulley structure for overhead line pay-off and belongs to the technical field of line construction safety tools. According to the technical schemesof the invention, an anti-induction electric pulley device is fixed to the cross arm (2) of an electr...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to an anti-induction electric pulley structure for overhead line pay-off and belongs to the technical field of line construction safety tools. According to the technical schemesof the invention, an anti-induction electric pulley device is fixed to the cross arm (2) of an electric pole (1) through a fixing bolt (13); an old wire (4) contacts with a carbon brush (17) at the top end of a pulley frame (14) and is placed in the pulley groove of a pulley; a ground wire hook is hooked to a ground ring (16); one end of a grounding wire (9) is connected to the ground wire hook; and the other end of the grounding wire (9) is connected with a grounding rod (10). With the anti-induction electric pulley structure for the overhead line pay-off of the invention adopted, the problemthat a ground wire cannot move in a following manner and can only be taken off in the line unwinding and dragging process of a line is solved; the potential safety hazards of the electric shock of construction personnel due t |
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