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    Installation requirements for drop-out fuses

    发布者:隆利达绝缘电器 Release time: 2016-09-22Publisher : Longlida Insulation

    (1) When installing the drop-out fuse, the melt should be tightened (make the melt receive a tension of about 24.5N), otherwise it will easily cause hot hair.

    (2) The fuse should be installed on the cross arm (frame) firmly and reliably without any shaking or shaking.

    (3) The melting pipe should have an inclination angle of 25 ° ± 2 ° downwards, so that the melting pipe can fall quickly on its own weight when the melt is blown.

    (4) The fuse should be installed on the crossarm (frame) with a vertical distance of not less than 4m from the ground. If it is installed above the distribution transformer, it should be kept at a horizontal distance of more than 0.5m from the outer contour boundary of the transformer. Another accident was caused by a drop of a melting pipe.

    (5) The length of the fusion pipe should be adjusted moderately. After closing, the duckbill tongue can hold more than two thirds of the length of the contact to prevent the malfunction of self-dropping during operation. In order to prevent the melt pipe from falling in time after the melt is blown.

    (6) The melt used is a standard product of a regular manufacturer and has mechanical strength. Generally it is required that the melt can withstand a tensile force of more than 147N.

    (7) 10kV drop-out fuses are installed outdoors, and the distance between phases should be greater than 70cm.


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