Preformed wire as early as the 20th century, 40 - 50 years appeared in the United States, the initial product for bare wire stress concentration and electric corrosion protection spiral arc burning position line protection. After years of development, at present, preformed wire fittings have been widely used in the field of transmission and distribution, fiber-optic communications, electric railway, cable, construction, agriculture and so on.
Preformed payment of electricity than conventional electrical fittings, with its unique advantages, now more and more to win the majority of electrical fittings clients, its products sub-Preformed Clamp, suspension clamp, connecting fittings, protection fittings.
Preformed Clamp for bare conductors or overhead transmission and distribution lines insulated wire installation. It can replace the traditional bolt-type, hydraulic type Clamp, its simple structure, the tubular structure after installing preformed wire legs formed naturally wound on the wire can have a very strong grip strength, grip strength of not less than clamp 95% calculated stranded tensile force; wire clamp for uniform distribution of stress, no damage to the wire, increase the wire vibration capability, greatly extend the life of the wire; simple installation, ease of construction, can greatly shorten the construction time; without any special tools, one person can complete the operation; clip easy installation quality assurance, testing can be carried out with the naked eye, without special training; good corrosion resistance, the material is consistent with the wire, to ensure that the clamp has a strong anti-electrochemical corrosion. Their products preformed wire conductor resistance clamp for ACSR, aluminum stranded wire, insulated wire; preformed Ground Clamp: for strand ground; for securing the tower, Tower, micro Bota La lines to the cable clamp, and can replace conventional wedge clamp.
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