The energy-saving and accident-free features of the H-clamp are widely used in the United States and Europe, and the drawbacks of the traditional domestic clips will be replaced by new products.
Compared with traditional clamps, H-type clamps have the following distinct advantages:
1. The H-type clamp can crimp the aluminum wire to the aluminum wire and the aluminum wire to the copper wire, and can also crimp the same wire diameter wire and the different wire diameter wire.
2. The H-type clamp has the design of increasing the anode. There is no copper-aluminum transition problem and it will not corrode.
3. The H-shaped wire clamp is filled with anti-oxidation protection oil to prevent corrosion and enhance the conductive function. The structure is simple and integrated, and the product quality can be guaranteed. The crimping is carried out using a hydraulic tool, and the quality of the crimping can be guaranteed.
4. The H-shaped clamp is fully covered with the conductor after crimping and connecting the conductor, instead of the local contact conductor. The current passes through the complete contact surface, the distribution is uniform, the resistance is small, the temperature rise is low, the fault is less, and the power supply reliability is good.
5, H-type clamp only needs 6 specifications, it can fully meet the crimp connection of all aluminum stranded wire, aluminum core insulated wire, steel core aluminum stranded wire, copper stranded wire and copper core insulated wire of 16-240mm2. That is to replace GB2335.1 and 5 types of groove clamps, GB2335.2 jumper clamp 15 kinds of specifications, GB2340T type clamp 18 specifications, a total of 38 specifications.
6. H-type clamps can reduce the inventory and capital backlog due to fewer specifications, and can reduce the human resources of warehouse hardware construction and procurement and storage management. The specification is small, the weight is light, and the carrying is convenient, which can reduce the load of the construction personnel and increase the working efficiency.
7, H-type clamp crimp connection is fast, is conducive to power failure repair, early power supply, to reduce the social damage caused by power outages, especially in traffic signals, furnaces, refrigeration and high-tech industries.
8. The tension, resistance and temperature rise conditions of the H-type clamp are good, and the faults are small, which can reduce the power loss of the power line and save the national energy. It will not cause power failure due to joint accidents, which will affect the sales revenue.
9. The H-type clamp is light in weight and good in function. It can save many resources of the country by replacing it with the groove clamp. For each wire connection, two groove clamps are required, and only one H-shaped clamp is required. Because the groove clamp is used for the same purpose, its weight is about 9 times that of the H-shaped clamp.
10. When the H-type clamp is in live working, only one of each connection is used, and the hydraulic clamp tool with insulated handle is used for crimping. The construction is simple and the constructor will not have an electric shock accident.
11. GB2335.1 and the groove clamp can only be clamped with aluminum stranded wire and steel core aluminum stranded wire. It is not allowed to be clamped with copper stranded wire, and only the same wire diameter can be clamped and the different wire diameter wire can not be clamped. limits.
12. The groove clamps are bolted and the aluminum plate is connected with the groove. The contact area is small, the current distribution is uneven, the resistance is large, the temperature rise is high, and the contact surface is difficult to avoid corrosion under the wind and rain.
13. When the groove line is clamped during live working, 2 pieces are required for each connection. For each two or more bolts, the operator needs to wear rubber gloves and leather gloves with both hands. Use the wrench tool to lock the nut. The action is very inflexible, the construction difficulty is high, and the constructor is more prone to electric shock accidents.
14. Regardless of the type of bolt used, the torsion moment applied to the nut should be properly and correctly, in order to maintain a benign connection, but in fact the quality of the on-site construction personnel is uneven, it is difficult to obtain a proper torsional moment, and the pressure is too large to cause the bolt. Deformation or disconnection of the wire is degenerated. If the pressure is too small, the contact resistance is large and the temperature is raised, which is likely to cause a connection failure, which is its biggest drawback.
