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  • breaker breaker

    Circuit breakers can be used to distribute electrical energy, start asynchronous motors infre ...

  • lightning arrester lightning arrester

    The role of the arrester is to protect various electrical equipment in the power system from lightning overvoltage, operation ...

  • Electrical insulation protective gear Electrical insulation protective gear

    Electrical insulation protective gear is a good electrical insulation, waterproof seal protection products. have...

  • Pin insulator Pin insulator

    Needle insulator porcelain and cast steel are glued together with cement cement, the surface of the porcelain is coated with a layer of glaze ...

  • Pillar insulator Pillar insulator

    In the early years, pillar insulators were mostly used for utility poles, and slowly developed into a high-voltage high-voltage wire connection tower ...

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    twenty two
    2016-09
    Classification of insulating rubber sheet

    Characteristics of insulating rubber sheet: good physical and mechanical properties of insulating rubber sheet, excellent insulation performance, smooth and clean surface, and a life of more than five years. ...

    twenty two
    2016-09
    Selection of drop-out fuse

    The method of selecting a fuse for a drop fuse is that for a load with a small impact current such as lighting, the rated current IRD of the fuse is equal to or slightly larger than the actual operating current I of the circuit. ...

    twenty two
    2016-09
    Installation requirements for drop-out fuses

    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 distribution transformer, in case of fusion pipe. Falling caused other accidents. ...

    twenty two
    2016-09
    Process and molding of insulation board

    There should be no harmful irregularities on the upper and lower surfaces of the insulation board. Harmful irregularities refer to one of the following characteristics, namely defects that destroy uniformity and damage the smooth contour of the surface, such as pinholes, cracks, local bulges, cuts, inclusions of conductive foreign bodies, creases, voids, bump waves ...

    twenty one
    2016-09
    How is the steel material used in high current wall bushings?

    When the through-wall bushing with a current of more than 1.5 kA is installed on the steel plate 12 or 2, it is necessary to cut a horizontal seam of about 3 mm on the steel plate along the radial horizontal extension of the sleeve. ...

    twenty one
    2016-09
    What are the maintenance management of insulator cleaning?

    Insulators need to be cleaned in wet weather. Dirty insulators are prone to flashover discharge, so clean up and restore the original insulation level. General areas are cleaned once a year, and dirty areas are cleaned twice a year (once before the foggy season). ...

    twenty one
    2016-09
    How to calculate the amount of wall bushing

    The calculation of the amount of wall-through bushings that pass through the masonry indoors is calculated by using extended meters, and sets the subheadings for pipes of the same specifications outdoor. ...

    twenty one
    2016-09
    Talking about the relationship between the thickness of the cable jacket and the quality of the cable

    The thickness of the cable jacket and sheath should be controlled in accordance with the standard. This will not only save resources, reduce material consumption and increase profits for the enterprise, but also ensure the quality of the cable and create high-quality and cheap products. ...

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