Page 319 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

Fig 4a Fig 4b

Fig 5 Fig 6

2 Write their names with voltage range and purpose in Table 1.
3 Get it checked with your instructor.
Table 1

Sl.No Name of the Insulator Voltage range Purpose of insulator
1
2
3
4
5
6

TASK 2: Install the shackle insulator in HT
Shutdown if the nearest lines are energised. Use a safety belt while working on a pole.
Before starting the work check the ladder, safety belt and all the connected accessories.
1 Fasten the safety belt, lay the ladder on the pole.

2 Release the conductor from the reel, measure the actual span plus sag and binding. Keep two lengths of
conductor. (Length of span + 1ft. Sag)
3 Check the shackle insulator for its damage and select a good one. (Clean and carbonize etc.)
4 Check the assembly of the shackle insulator for its proper fitting.

5 Ask the helper to hold the ladder, climb up the ladder with the guide rope and spanner set.
While working on the ladder, the ladder should be held by a helper to avoid slipping.
6 Position yourself conveniently on the cross-arm, tie the safety belt end to the cross-arm. Send one end of
guide rope to the helper and ask him to tie to the shackle assembly and lift it to the top.
7 Fix the shackle insulator to the cross-arm by ‘C’ clamps. (Fig 1)

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CITS : Power - Electrician & Wireman - Exercise 110