Strain Hardware Set and Conductors
Strain Hardware Set
The conductor is strung among sections by a strain hardware set. It is fixed along with the last disc of the string of disc insulator. It is made from malleable iron or aluminium alloy. Alloy hardware is preferable as the losses are less.
Conductor represents 30 - 50 percent of the installed cost of the line. All aluminium conductors (AAC), all aluminium alloy conductors (AAAC) and aluminium conductor steel reinforced (ACSR) are commonly used. Technical specifications of conductors are covered in IS: 398. These conductors are of standard construction and the ultimate tensile strength of the overall conductor is based on the total strand strength.