標準號：IS 2121 Pt.3-1992
發布日期：1992/5/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1.1 This standard covers the requirements for accessories for earthwire for use on overhead power lines and includes:a) earthwire suspension clamp assembly,b) earthwire tension clamp assembly,c) flexible copper bond for earthwire, andd) mid span compression joints for earthwire and repair sleeves.1.2 Earthwire is a conductor which is earthed and which is normally situated above the phase conductors. They are normally used for transmission line voltages greater than or equal to 33 kV.1.3 For the purpose of this Indian Standard the terms 'accessory' and 'fitting' have been interchangeably used.