Page 318 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

EXERCISE 110 : Identify different types of insulators

and binding insulators, fix jumper by
crimping tool

Objectives

At the end of this exercise you shall be able to:
• identify the type of HT/LT line insulators
• install insulator and bind it
• fix jumper using crimping tool.

Requirements

Tools/Equipments/Instruments

• Insulated combination plier 200 mm -1No. • Suspension insulator -1No.
• DE spanner set 6mm to 25 mm -1Set. • Strain insulator -1No.
• AdjusTable spanner 6mm to 25 mm -1Set. • Ring insulator -1No.
• Safety belt -1No. • Stay/egg insulator -1No.
• Wooden or nylon mallet 1/2 kg -1No. • Cotton waste -as reqd.
• Ladder 6m long -1No. • Binding wire 14 SWG aluminium -as reqd.
• Jute rope of 25 mm dia and 15 m • Scrap piece of ACSR conductor of
length -1No. length 1m (for bow) -3 Pieces.
• Wire stretcher 25 mm -1No. • Sandpaper or emery sheet -as reqd.
• Megger 500 V -1No. • Flat aluminium tape -as reqd.
Materials/Components • Protective grease suiTable to apply over the
ACSR line conductor -as reqd.
• Shackle insulator, porcelain 1kV -4No’s. • Line accessories -as reqd.
• Pin insulator, porcelain 1kV -4No’s.

Procedure

TASK 1: Identify the LT and HT types of insulators
1 Identify the LT and HT type line insulators from Figures 1 to 6.

Fig 1 Fig 2 Fig 3

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