Static contact, GIL, GIS and bus

The invention provides a static contact, a GIL (Gas Insulated Line), a GIS (Gas Insulated Switchgear) and a bus, and belongs to the field of gas insulated metal sealing equipment. The static contact comprises a static contact body, and an insulating layer used for blocking charge exchange between metal particles and the static contact body is arranged on the outer wall of the static contact body. The GIL comprises the static contact. The GIS comprises the static contact. The bus comprises the static contact. According to the static contact, the insulating layer is arranged on the static contact body, so that the moving speed of metal particles moving to the position can be reduced, the metal particles can be easily captured by a particle trapper, and the risk of flashover of an insulator is reduced. 本发明提供了一种静触头、GIL、GIS及母线，属于气体绝缘金属封闭设备领域。该静触头包括静触头本体，静触头本体的外壁上设置有用于阻断金属微粒与静触头本体之间电荷交换的绝缘层。GIL包括上述的静触头。GIS包括上述的静触头。母线包括上述的静触头。本发明通过在静触头本体上设置绝缘层，能够减小运动至此处的金属微粒的运动速度，使其能够容易被微粒捕捉器所捕获，降低绝缘子出现闪络现象的风险。