HZ series shield is a good electrical insulation sealing waterproof safety protection product. The utility model has the advantages of convenient installation, excellent environmental adaptability, long service life, etc. It is mainly used for insulation protection at the connection of power transformer terminals and other wiring equipment. Prevent short circuit accidents caused by foreign matters lapping animals climbing down, prevent electric shock, pollution and condensation flash, reduce the corrosion of air and harmful gases on conductive materials, and extend the service life of electrical equipment.