Polymeric Lightning Arresters
A device that is used for protecting the conductors and polymeric insulators that are used on telecommunications systems and electrical power systems; from dangerous effects of lightning is a polymeric lightning arrester. These have been manufactured to offer the optimum protection or security to the distribution equipment like transformers and like products from the overvoltage transients caused due to external lightning and internal switching events.
A lightning arrester comes with a ground terminal and a high voltage terminal. It never absorbs lightning. When a lightning or switching surge travels simultaneously with the power line to the arrester, in most cases the current from the surge is diverted to the earth through the arrester. There are two types of surges, one that comes directly from atmosphere lightning and the other comes from the electrical system like switching surges. At normal voltage, this arrester is like an insulator, ut at the high voltage which is caused by lightning it acts as a conductor and helps in passing the voltage to the earth through the ground terminal. The arresters have been designed to perform their tasks with fidelity and high-end improvements towards the surge medium and switching voltage networks.
These lightning arresters are made using silicone rubber, which is of a new type and has been examined & tested by different weathering tests. After this, this silicone rubber has been applied to the shed material of the lightning arrester. These tests confirmed the excellent resistance properties of the silicone rubber against the harsh weather and high water repellence in the longer term. The new type of silicone rubber also showed a wonderful performance in the pressure relief tests. Going through such kind precision tests made these arresters more reliable and durable. The range of the arresters is usually from 11KV to 36KV. There are two types of surge arresters are available:
Distribution Type Surge Arrester Class I
Station class surge arrester Class I. II, III
Here are some of the main features of the lightning arresters:
These arresters come with direct molded housing which helps in preventing moisture ingress.
With the surge arresters, you will get only excellent cantilever performance.
These have been designed in such a way that they are maintenance-free.
The lightning arrester comes with a hydrophobic silicone housing.
With surge arrester comes low residual voltage.
The surge arresters come with a high-quality design and their manufacturing meets all the necessary international standards.