Insulating groove and beam are insulating structural support elements for EHV DC transmission converter valves, which are molded by flame retardant epoxy resin glass cloth.
In 2010, TMT signed a strategic cooperation agreement with CLP Puri Power Engineering Co.,Ltd.. After research and development, the product development was completed and recognized by customers in 2012.
In 2013, TMT signed a frame work purchase agreement with CLP Puri, with a procurement volume of 500 million RMB.
Insulating support elements have many excellent properties such as halogen free flame retardant and UL 94-V0level flame retardant level in line with the EU ROSH instruction. Furthermore, the load deformation is less than 4mm, dedicated production line of groove and beam is self-designed, mold design has been optimized, product cross-sectional dimension is uniform and the product design is optimized by using finite element analysis.