Page 321 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

Fig 3 Fig 4

TASK 4: Fasten the jumper in pin insulator
1 Keep the ladder on the pole and ask the helper to hold the ladder. climb up the ladder with the guide rope and
spanner set.

2 Fix the pin type insulator to the cross-arm of the existing pole.
3 Tape the neck of the pin insulator with flat aluminium tape.
4 Lift the Aluminium Conductor Steel Reinforced (ACSR) conductor and keep it in between pole and the pin
insulator.

5 Lay the ACSR wire on the slot of the pin insulator and ask the other helper to stretch the conductor with a wire
stripper.
6 Take the binding wire of about 2 metres length, leaving equal length on both sides. Bind two turns on the
insulation (Fig 1a) around the neck of the pin insulator.
7 Make a knot of the binding wire with the free ends tightly. (Fig 1b)
8 Bind the free ends of the binding conductor over the line conductor tightly in the opposite direction. (Fig 2)

304

CITS : Power - Electrician & Wireman - Exercise 110