Page 244 - Electrician - TT (Volume 2)

ELECTRICIAN - CITS

8 Nylon cable ties (Fig 24)
• It is a type of fastener used to hold or tie or bunch the wires / cable or group of cables.
• It is made of nylon tape or belt which has teeth that will engage with head of the pawl to form a ratchet and
tightens the wires.
• In general the tie can not be loosened, or removed or reused. However some reusable ties are also
available.
• it is available in different colour, length and width.
• Because of its low cost and easy to use, it is widely used in general purpose application also.

Fig 23 Fig 24

9 Sleeves (Fig 25)
• It is flexible tubular / cylindrical insulator into which the electric wire or cable or group of cables can be
inserted.
• Apart from the electrical insulation and easy identification of wires, it also protect the wires from abrasion,
heat, chemical, physical damage and radio interference.
• It is available is different colour, style, materials like carbon fibre, fabrics, Teflon, fibre glass, nylon, poly
ethylene (PET) wrap, braided metal and heat shrink sleeves.

10 Grommets (Fig 26)
It is a type of bushing which is used to insulate and hold the cables when they pass through a punched / drilled
holes of panels or enclosures. It is generally made of rubber, plastic, plastic coated metal and protect the cable
from twist, tug, cut, break, strain, vibration etc and prevent the entry of dirt, dust, water, insects and rats into the
panel. It may also called as glands.

Fig 25 Fig 26

11 Wire clips (Fig 27)
It is a type of fixing or fastening device which is used to fix and hold the cables or punch of cables in a secure
manner.

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CITS : Power - Electrician & Wireman - Lesson 93-100 CITS : Power - Electrician & Wireman - Lesson 93-100