When used as an electrical insulation cover, heat shrink sleeves provide dependable protection against abrasion, scuffing, cutting, and impacts. These can be used to insulate virtually any type of electrical conductor. Heat shrink tubes are also being used to create secure cable entry seals with adequate protection from the surrounding threats and adverse environmental conditions. Before you take initiative to buy heat shrink sleeves, it is a must to be sure of their effectiveness, benefits, capabilities, and the most accurate size.

Size of Heat Shrink Sleeve: An Important Buying Parameter

Different types of heat shrink sleeves are available for optimal use. Each type of heat shrink sleeve is available in different sizes to facilitate the users to select according to the particular site conditions. The more commonly used types of heat-shrinkable sleeves, made of cross-linked polyolefin, are – thin wall tubes, medium wall tubes, and heavy wall tubes. Other application-oriented sleeves to seal the electrical connectors and accessories in installations are-

• Busbar TubesRed Insulation Tubes
• Non Tracking Tubes
• Double Layer Tube
• Stress Control Tube

Thin wall tubes are applicable for electrical insulation up to 3.3 kV. GSC Series of these tubes is being used globally for light-duty wire harnessing, insulating in-line components, insulating switchgear bus-bar, and color-coding of wires. Thin wall tubes of YG Series are yellow and green striped; these are extremely flexible therefore, these tubes find applications in ground lead insulations. The size of GSC 1.0/0.5 cable is 1.0 mm (Supplied I.D. ), 0.5 mm (Recovered I.D.), and  (0.28 mm thickness. Thin wall tubes are available up to 100 mm (Supplied I.D. ) size in thickness of 1.17 mm.

GMW tubes are designed to insulate low voltage cable terminations against environmental protection and to insulate the connectors for low voltage straight through joints upto 3.3KV. Heavy wall black tubing is used for mechanical protection and outer sealing of underground cable joints upto 36KV. The maximum cut length of 1500 mm is available for 250mm heavy wall tubes.

The dual wall tubes, made of co-extrusion of polyolefin and hot melt adhesive, are used to provide long-term effective insulation and sealing of electrical accessories. These polyolefin tubes with shrink ratio 3:1 meet RoHS compliance. These are used more for resistance to UV rays and weathering in industrial sectors like telecommunication, equipment manufacturing, automotive, aviation, etc.

The insulation quality depends upon many factors like perfection in fixing, choosing right size, using a prestigious brand, and following IEC code, etc. The heat shrink tubes supplied by Gala Thermo meet IP 68 and IEC 60684-3-247 standards.

Buy Heat Shrink Tubes in an Optimized Quantity to Reduce Wastage

The leading heat shrink sleeves manufacturers provide heat shrink tubes of varying lengths. For example, Gala Thermo Shrink PVT. LTD manufactures and supplies heat shrink tubes in spools of 25, 50, 100, 200, 400, 1000 mtr length. Heat shrink sleeves are also available in 1.2 mtr cut length. The packages of cut-length heat shrink tubes are available to match different needs; you may ask for a pack of 5, 10, 15, 20, 30, 40, 65, 80, etc. For bulk users, heat shrink sleeves of cut length are available in a box of 600 pcs also.

Pro-Tip

The key selection parameters to buy heat shrink tubes to insulate electrical accessories as well as to make the installations corrosion resistant are dielectric strength, dielectric constant, operating temp, tensile strength, water absorption, shrink ratio, etc.