On July 17, 2010, ± 800kV DC rod pillar porcelain insulator (height 10970mm, bending resistance 10kN, creepage distance 39168mm) was put into operation at Fulong converter station.
Tangshan High voltage Electric Porcelain Co., LTD., founded in 1952, is a subsidiary company of Beijing BBMG Group, one of China's top 500 enterprises. Tangshan High voltage electric porcelain Co., Ltd. is a power station electric porcelain product design, research and development, production manufacturers, is one of China's insulator arrester industry backbone enterprises, the annual output value of 300 million yuan, the product registered trademark "TD" brand.