Plate Shaped Connection Fittings With Adjustable Connection Length

It is a plate-shaped connection fitting with adjustable connection length used in power systems. According to GB/T 5075-2016 "Terminology for Power Fitting", it is defined as a plate-shaped adjustable device and belongs to the category of overhead line connection components. This device achieves length adjustment of connecting components through structural design and is mainly used in the field of transmission line engineering [1] [3]. The adjustment board includes two common types: DB type and PT type. DB type achieves L1-L5 five level length adjustment by selecting the combination of "0" hole and "1-5" hole, which is suitable for on-site real-time adjustment of insulator string length [2-3]; PT type achieves moderate string length adjustment by adjusting the position of the middle bolt hole. Typical parameters include models such as DB-7 and DB-10. This metal fitting has been included in the national standard specification system of the power industry and used as a standard term for adjustable connection devices. The product is manufactured using hot-dip galvanizing technology and is suitable for connecting 10kV voltage level wires. It has technical characteristics such as flexible adjustment range and convenient installation