IEC/BS EN 62561-1 Class H BS 7430 UL467. Furse Rod to Tape Clamp (type A). Furse Rod to Tape Clamp (Type A) is designed to connect earth rod to copper tape to complete earth rod assembly. Conductivity and mechanical strength are essential considerations in clamp design to ensure that an earthing system remains operative for many years. Features. Corrosion resistance. High-quality copper and aluminium alloys. Phosphor bronze fitting. Tightening torque 15 Nm. Applications. Used to connect earth rod to copper tape.