The metallic oxide lightning arrester developed by the Electricity Research Institute under the State Academy of Sciences is in wide use across the country.
It makes it possible to protect various kinds of electric equipment and appliances and electronic devices.
For its characteristics such as high nonlinearity, energy-absorbing ability, and quick response and reliability, it restrains and absorbs such impulsive overvoltage as lightning and operation overvoltage and runs repeatedly without any breakdown.
It is small in size, light and easy to fix.
It also has good damp-proof and blast-proof ability and can be used in contaminated zones.