SS 322-1987 接地和搭接用夹具规范

标准号：SS 322-1987
中文标准名称：接地和搭接用夹具规范
英文标准名称：SPECIFICATION FOR Earthing And Bonding Clamps
发布日期：1987/1/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This Singapore Standard specifies the performance and important mechanical features of metal clamps used to provide mechanically and electrically sound means of earthing and/or bonding. They are primarily intended for use in electrical installations for the connection of(a) an earthing conductor having a cross-sectional area in the range 2.5 mm2 to 70 mm2 to earth electrode rods or other means of earthing;(b) bonding conductors to metallic tubes having circumferences not less than 18.8 mm (i.e. round tubes of 6 mm diameter).These clamps are also suitable for effecting electrical bonding between other conductive parts, one of which is a tube.This standard applies only to clamps having terminations that affect connection to the conductor via the use of screw-threads. Other methods of connection of a more permanent nature such as soldering, welding or crimping, without the use of a separate cable socket, are excluded.NOTE 1. Clamps covered by this standard are intended to be used singly when encircling a tube at a given position along the tube.NOTE 2. There is no correlation between the size of a conductor which the clamp termination can accommodate and the size of tube for which it is intended to be fitted.