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.

Heat shrink technology is contributing remarkably by making the electrical installations human safe and long-lasting. Insulating the electrical installations properly insulated against moisture, environmental impacts, and human contacts is the top priority of engineers. Although there is no shortage of quality insulating accessories; still, searches for the better insulating accessories never end. A range of heat shrink electrical insulation solutions by Gala Thermo offers the best-fit reply to all the insulation concerns.

Heat Shrink Technology for Electrical Insulation

Heat shrink insulation technology is based on specially formulated thermoplastic polymer materials. The time-tested technology supports the top manufacturers of heat shrink accessories to customize the products for particular applications. The export quality heat-shrink insulation products are globally known for having excellent quality, high reliability, and long-lasting performance ability to withstand weathering impacts like moisture, pollution, contamination, salt fog, chemicals, and others. Elastic memory of products uses cross-linking technology that allows them to retain their original shape when heated. The Shrink ratio varies at large from product to product. The shrink ratio is scaled as the shrunken size to its original size.

Developed by Paul Cook in the late 1950s, the heat shrink tubing kit was invented to protect against chemical radiation. The hybrid heat shrink technology facilitates to development of high permittivity and high consistency material to produce refractive control cable accessories. Gala Thermo uses specially formulated polymer thermoplastic materials; these have excellent properties to shrink and to conform with precision to any shape. Within the advanced range of heat-shrink accessories, multi-layer tubes, and unique insulating materials, the science incorporates several much-desired functions.

Export Quality Heat Shrink Insulation Accessories

The quality electrical insulation contributes to the performance of electrical installations. The export quality heat-shrink insulation accessories have a proven performance record; these need no maintenance that translates into considerable cost savings. The salient features of premium quality heat shrink accessories manufactured by Gala Thermo are-

• Superior reliability under tough environmental conditions
• Flame retardant
• High thermal property
• Resistance against thermal ageing
• Hydrophobicity (The capability to repel water)
• Resistance to surface electrical activity
• Tracking & erosion resistance

Application-Ready Heat Shrink Insulating Products

Gala Thermo is engaged in the manufacturing and export of quality heat-shrink accessories for over decades. During the journey, R&D has been a consistent program to improve the quality and to expand the product line with ideology to provide application-ready insulation accessories. Today, users have more choices for each category; may it be busbar sleeves, heat shrink tubes, cable end sealing caps, heat shrink coupler, heat shrink moulded shapes, or other. For example, heat shrink tubes or heat shrink sleeves are available in three categories like thin wall tubes, medium wall tubes, and heavy wall tubes. Similarly, heat shrink moulded shapes are available as anode caps, rain sheds, cable end caps, right angle /straight boot etc.

The use of electrical insulating accessories like busbar sleeves, cable end sealing caps, heat shrink coupler, heat shrink moulded shapes, etc is easy and it doesn’t need any special training. The top manufacturer and exporter of heat shrink products, Gala Thermo offers comprehensive online support also for first-time users to facilitate them to embrace the future-oriented insulating technology that makes you and your electrical installations safe.

Cable joints play a vital role to make electrical connections dependable. These provide mechanical support and physical protection to cable joints and terminals. The uninterrupted power supply has become a core need of businesses, industries, and commercial establishments to perform to achieve a sustainable growth rate. The heat-shrinkable joints for connecting cables drive in the stability of the power supply along with several other benefits.

Heat Shrink Cable Joints for Secured Cable Connections

Cable jointing is an indispensable practice for electrical technicians, engineers, and consultants;  we have high expectations on it because the overall performance of electrical installation depends upon the secure jointing standards. A cable joint must protect connected cables against dust, penetration of foreign objects, and moisture ingress. Heat shrink cable jointing is the best match for universal application to implement at straight through or branch joints in low-voltage or high voltage electrical installations. The longitudinal and laterally waterproof heat shrink cable joints by Gala Thermo secure the cable connections to withstand in the toughest environments.

Gala Thermo Offers a Range of Ready-To-Use Heat Shrink Cable Joints

As the acceptance of heat shrink technology is increasing in the community of electrical engineers, technicians, consultants, and other stakeholders, the diversity in demand is also increasing. Gala Thermo, the leading manufacturer of heat-shrink insulation products, offers a wide range of ready-to-use heat shrink cable joints. The cable joints can be categorized as –

• Transition joints: Suitable for cables of all sizes; facilitate to connect cables of different cores
• Pot End Joints: Suitable for power cable left live at termination
• Branch Joint: suitable for ‘T’ or the ‘Y’ type joints of 1 to 5 cores cables
• Straight Joints- suitable for outdoor, indoor, submerged, and underground cable jointing

As being one of the top manufacturers and suppliers of heat shrink cable joints, Gala Thermo keeps inventing new solutions to provide better electrical connections. The recently launched series of cable joints are-

• GXLT/GPLT: Suitable for PVC / XLPE/ PILC Cables upto3.3kv
• GXS/1236kv: Suitable for 3 Core XLPE/PVC insulated cables for up to 36kv
• GXSS/1236: Suitable for single core XLPE/EPR/PVC insulated cables for upto 36kv
• GPS/1112: Suitable for 11kv 3 core PILC cables
• GTJ/1112kv: Suitable for 3 core XLPE/PILC cables up to 12kV
• GTJ/2436: Suitable for 3 core XLPE/PILC cables up to 36Kv

The Premium Quality Heat Shrink Cable Joints

Gala Thermo is manufacturing heat shrink insulation products for over the decades. Its continuous R&D keeps the product category expanding. The cable joints are tested for a range of quality parameters like –

• Heating cycle test in water
• Insulation resistance
• Impulse withstand test at ambient temperature
• Impulse withstand test at elevated temperature
• C. high voltage test
• C. high voltage test

No breakdown and no flashover under extreme conditions ensure the long-lasting performance of cable joints. The heat-shrink cable joints are made in a user-friendly kit containing all the needed installation accessories like terminal lug, adhesive lined terminal sleeve, anti-tracking sleeve, stress control sleeve, copper braid, worm drive clip, etc. All the cable joints supplied by Gala Thermo are IEC 60502-4 & CENELEC HD 629.1 compliant as well as in line with IEC 60502, 60060 & 60230 quality parameters.

Parting Note

The practice of using low-cost heat shrink cable joints for secured cable connections saves a lot in the long-term in the form of low maintenance, long life of electrical cable connections, reduced faults in electric supply etc; adapt heat shrink technology for growth-oriented transition in a new era.

The importance of insulation accessories for electrical installation can’t be undermined because making the electrical installation human safe is the top priority after the other major concerns like uninterrupted power supply, long life, low maintenance, minimum shut-down periods etc. Sensing the increasing acceptance of importance of cable insulation accessories, manufacturers are producing a range of cable insulation accessories; and, the heat shrink cable end caps are the low cost but highly useful often neglected accessories.

Heat Shrink End Caps- A Must Have Insulation Protection

As the name denotes, end caps are used to insulate cable ends. What will happen if you don’t use end caps? Taping the cable ends is a conventional practice but it is not effective for longer period especially in industrial and complex electrical installation. The normal PVC tapes don’t provide protection against environmental impacts; neither, these make the cable ends water/moisture resistant. Most of times, the PVC tapes become loose because of environmental impacts. PVC tapes are not good to resist mechanical stresses also that are very common in industrial installation. The use of electrical cable end caps provides a reliable long-lasting protection cover to cable ends.

Heat Shrink Cable End Caps Are Easy To Use

The increasing acceptance of heat shrink technology worldwide denotes that the heat shrink electrical insulation accessories are really effective to protect the installation and humans both from shocking incidents, cuts, and other hazards. The leading manufacturers of heat shrink cable end caps like Gala Thermo offers guarantee for optimum performance under severe environmental conditions and electrical stresses.  The use of cable end caps does not need any specific training; the manual automatically guides to use these small but must use accessories. Cross-linked polyolefin is the most used material. The adhesive layer inside the cable end caps keeps these sticked permanently. The shrinkage on heating property makes these caps tight around the cable ends; so, there is no harm to cable functioning because of water, dirt, moisture, chemicals, gases etc.

The Variety of Cable End Caps

Whatsoever kind of cable you might be using, Gala Thermo offers a perfect fit solution to seal the cable ends. The readily available range of cable end caps suits to XLPE, PVC, PILC or rubber sheathed cables.

Valved End caps are available for pressurized applications like in Telecom cables. Special Relief valve End Caps are available for degassing applications like in HV power cables. Live End Caps are available for sealing the live cables. Conductive cable end caps are also available with conductive mastic sealant. Cable end caps marked with custom logo created with non- removable ink delivers extra security and higher standards for electrical installation.

The key parameters for buying heat shrink cable end caps are – density, tensile strength, ultimate elongation, water absorption, accelerated ageing, shrink temperature, temperature limit etc. The parameters like dielectric strength, volume resistivity and dielectric constant etc decide the suitability according to a particular electrical installation.

Concluding Note

Heat shrink cable end caps are available in three categories- Live end cap kit, de gasing end caps, and cable end sealing cap (INSULCAP).  IP 68 is the ‘Ingress Protection’ standard that you should not miss to confirm.

Human safety against electrical installations is the top concern of electrical engineers and consultants.  All the best practices are applied to make electrical installations safe against all the possibilities. Insulation quality plays a vital role in making the electrical installations safe as well as long-lasting performing. The heat shrink electrical insulation products innovated and produced by Gala Thermo are getting high-end popularity because being application-ready and user-friendly.

Need for Heat Shrink Electrical Insulation Products

The insulators have been one of the most neglected elements of electrical installation in industrial sites. Most of the times, we forget about these until they fail to cause heavy loss. Contamination and water are the most powerful enemies of electrical insulation. Contamination creates a path of less resistance for isolated voltage to cause electrical breakdown and heavy loss. Water moisture penetrates the insulator´s body and other elements of electrical installations to reduce insulation capability for voltage isolation. The conventional insulation solutions are cheaper but these are not as effective as they should in challenging environments and working conditions. Here, heat shrink electrical insulation products being manufactured, supplied, and exported by Gala Thermo, win the trust of electrical engineers and industrial consultants.

The Premium Quality Heat Shrink Insulation Accessories

As a leading manufacturer and exporter of heat shrink insulation accessories, Gala Thermo offers the widest range of ready-to-use heat-shrink insulation accessories that are up to international quality standards. The company is exporting its heat shrink insulation accessories to more than 10 countries; and, it is the poof of being a trustworthy source to buy heat shrinks insulation products.

The key resisting powers against using any new product or technology are-

• Complicacy involved in the usage
• Special training required
• Special tools requirement
• Unconfirmed suitability for particular applications
• Non-standardization of product technology
• Norms compliance
• Additional cost justification

The continuous R&D efforts ensure the best-fit reply for each concern of users. The innovative range of power cable accessories and heat shrink fittings are accredited to ISO 9001:2015, ISO 14001: 2015 and ISO 45001: 2018. The one of its kind ‘Quality Education System’ train and encourage the employees to produce the best products that could meet the users’ need and expectations effectively.

Wide Range of Heat-Shrink Electrical Insulation Products

Whether you want to provide the best insulation to cable ends, cable joints, or busbar connections, Gala Thermo product range offers a customized solution. Heat shrink sleeves to insulate cable joints are available in thin and thick wall modules; therefore, users can select the appropriate heat shrink sleeves based on voltage range. Heat-shrink cable terminations are made tamper proof against the toughest environmental factors. All the heat shrinkable joints & cable terminations are IEC 60502-4 & CENELEC HD 629.1 compliant.

The product line in switchgear insulation products category includes busbar tubes, bus bar insulating shrouds, bus bar end caps etc. The busbar tubes and bus bar end caps for MV switchgear applications up to 36 KV are compliant with ANSI C37.20.2 quality standards.

Heat shrink end cap with cable pulling eye is an innovative product for telephone and power cable networks. These heat-shrink end caps with a pulling eye make the connection strong like the cable itself. These are excellent protection against moisture and water intrusion. The application of end caps effectively reduces the risk of cable deformation while pulling.

Concluding Note

When you trust the industry leader, known for its innovative approach to producing application-oriented the low-cost heat-shrink electrical products, you get the benefits of incorporating the globally relied insulation technology.

Heat shrink technology was introduced in 1950s by Paul Cook. Since then, the technology is making regular advances to leverage its benefits for the end-users. However, the adaption rate for this must-have technical excellence for electrical installations is comparatively low. The adequate insulation and corrosion protection is essential because of several reasons not just for human safety; the heat-shrink power cable accessories and other products provide comprehensive safety solutions for critical electrical set-ups. Continue reading Heat Shrink Technology- A Must Have for Insulation & Corrosion Protection →

Power cable accessories play crucial role in keeping electrical installations human safe and long lasting. The tough environment condition is a very common aspect in industrial and commercial setups. Electrical installations in such places need extra insulation protection to keep the cables and other parts protected against chemical, mechanical, thermal, and other impacts. Here comes the role of heat shrink technology that facilitates to produce a range of heat-shrink tubes and cable joint accessories. Continue reading Are You Still Not Using Heat-Shrink Power Cable Accessories for Enhanced Protection →

Heat shrink tubes, made of cross-linked polyolefin material, are finding new ways to be used in a range of innovative applications to protect the electrical installations and wirings aesthetically pleasing and safe for the users. Years back, the use of heat shrink tubes was limited to seal the cable joints but now these are being used all across the electrical installations to secure various elements in end-to-end circuit. As the use of heat shrink sleeves is increasing, the diversity in demand is also increasing. To meet the ever-expanding requirements of end users, the leading manufacturers of heat shrink electrical insulation accessories are expanding their product line continuously. Continue reading Ever-Expanding Applications of Heat Shrink Tubes →

The numbers of industries are highly exposed to electrical accidents just because of negligience of safety measures at the time of electrical installation. Every year, faulty electrical installations cause a loss of millions of rupees. Hundreds of people die or get fatal injuries every year in different sectors. In addition, the industrial set ups, where electrical accidents occur, get bad repute. The easily available low-cost heat shrink products make your manpower, machinery, and set-ups electrical accident proof. Continue reading Embrace Heat Shrink Products to Say ‘no’ to Electrical Accidents →

Heat shrink technology is playing an important role in making the electrical installations protective against environmental and usage impacts. The technology was introduced decades before but it remained almost neglected to be accepted by the industries unless now, when, there is increasing awareness to reduce the electrical accidents caused mainly because of poor insulation. Heat shrink sleeves are getting adaptability to new applications to make the electrical installations long lasting and accident free even in robust environments. Continue reading Heat Shrink Sleeves- The Best Alternative to Conventional Taping →