Transmission Line Products

A fuse cutout is an electrical protection device used in primary overhead feeder lines and taps to protect distribution transformers from current surges and overloads.

The working principle of these devices is to connect the fuse to the series of transformer feeder cables. The connection is through a hinged tubular fuse, in this way the fuse is fixed in position on the cut body. If the link melts and separates under over-current conditions, the fuse holder will drop freely under its own weight, rotate to the hinge, and hang vertically, making its state clearly visible. Most fuse cutouts are designed with a metal ring on the fuse holder. When maintenance and repair personnel need to work on the transformer, the fuse can be using a long insulating stick called a "hot stick" manually disconnected.
 

A composite insulator, also called a dielectric or nonconductor, is a material that resists the flow of electric current. This type of silicone rubber material is used in parts of electrical equipment intended to support or separate electrical conductors without passing current through itself. In power systems generally refers to insulating supports that attach electric power transmission wires to utility poles or pylons.

Composite insulators are less costly, lighter in weight, and have excellent hydrophobic capability. This combination makes them ideal for service in polluted areas. However, these materials do not yet have the long-term proven service life of glass and porcelain.

Surge arrester is also called overvoltage protector and overvoltage limiter. It is connected in parallel to the front end of the protected equipment to protect other electrical equipment from lightning overvoltage, operating overvoltage and power frequency transient overvoltage impact.

Surge arrester in AC distribution system, it is also called a distribution arrester, which is mainly used to protect distribution transformers, cables and power station equipment.

Surge arresters are installed on circuit breakers inside a residential home, inside pad mounted transformers, on pole mounted transformers, on pole-mounted riser poles and substations.

Overhead line fittings are also called overhead line fittings or overhead line accessories. Overhead line fittings include various steel fittings used to construct overhead lines, used for hanging, fixing, protecting, connecting, connecting overhead lines or insulators on overhead lines and the metal device used to connect the cable on the cable structure of the cable tower is an important part of the circuit transmission hardware, which ensures the stability of the transmission line.