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Composite insulator of high - voltage line cross arm
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Composite insulator of high - voltage line cross arm

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Summary of crossarm composite insulators: 

Composite cross arm insulator can effectively use the narrow corridor open pressure transmission, apply to the technical reform of city network, can reduce the height of tower, can save a lot of manpower and material resources and financial resources, due to its high bending strength, can prevent the porcelain crossarm level even rupture accident of the insulator, porcelain crossarm are irreplaceable products; Small size, light weight, shock resistant, anti-shock ability, no need for manual cleaning, provide guarantee for safe operation. Narrow corridor can be effectively used to open pressure transmission, apply to the technical reform of city network, can reduce the height of tower, can save a lot of manpower and material resources and financial resources, due to its high bending strength, can prevent the porcelain crossarm level even rupture accident of the insulator, porcelain crossarm are irreplaceable products; Small size, light weight, shock resistant, anti-shock ability, no need for manual cleaning, provide guarantee for safe operation. 

The features of the cross-arm composite insulator: 

The product adopts special steel manufacturing gold tools, multi-layer protection, the sealing performance is good, solves the insulator the most critical problem - the interface electric breakdown. Connecting the hardware with the mandrel shaft constant pressure pressure welding process, and is equipped with automatic flaw detection system, the acoustic emission to ensure the stability and reliability of connecting the hardware with the mandrel. The core and silicon rubber interface are coated with special coupling agents. The condom adopts the whole process of the whole process under high temperature and high pressure, and the two parts of the technology that are monitored by the computer extend the service life of the product 

: hengdan composite insulator manufacturing technology: 

The two kinds of production techniques, such as injection and moulding, are applied to the core and sheath, which can avoid the appearance of interfacial puncture. 

 

The operation condition of the cross arm composite insulator: 

Ambient temperature is not higher than + 50 ℃, no less than to 40 ℃; 

The altitude is no more than 3000m; 

The power frequency is no more than 100Hz; 

It applies to all kinds of defiled areas, especially in the area of heavy pollution. 

Installation of cross arm composite insulators: 

(1) the insulator should be carried gently and gently to avoid the impact of the hard object, such as iron and tools. 

(2) the product when lifting, knot to play on the end attachment, is strictly prohibited to play on the umbrella group or sheath, the rope must be touched and umbrella group and sheath part, should be in contact with a soft cloth. 

(3) it is strictly forbidden to step on an insulator umbrella group. 

(4) it is not possible to use composite insulators as auxiliary tools for the line, so as not to cause them to be affected by the impact or bending of the insulator. 

When installing equalizing ring (5), we should pay attention to adjust the equalizing ring installation, perpendicular to the axis of the open mouth equalizing ring, openings on both ends should be paid attention to in the same direction, is good for discharge and umbrella group. 

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