The resilience of ¡°E¡± type component can stockpile and release the energy which is engendered by expansion and contraction in different electrical load. In order to keep a constant contact-pressure, ¡°E¡± type component will expand and contractible when the temperature of wire up and down. It is named the ¡®breath function¡¯ Dual-hinge connector which installs in ¡°E¡± type component will make extra lateral pressure when it is in a certain applied force. Therefore, the enough power and connecting pressure will be made between connector and wire. This is the main method of stopping the destruction of the power line connector made by high temperature. 1.adaptable voltage£º380v 10kv 35kv 2.Application £ºAluminum-aluminum, copper-copper copper -aluminum, aluminum - iron