The safety plays critical role in the success of electrical installations. The polyolefin heat-shrink glands make the cable entries in to the enclosures, connection boxes, and bulkheads safe leaving no gap around to eliminate any possibility of entry of water/moisture, environmental dust, chemical fumes, pests etc. The flame proof heat shrinkable glands make the electrical installation boxes and enclosures additionally safe against the fire hazards. The heat shrink glands come in a three parts assembly – O-ring, heat shrink molded body, and a plastic nut.

The Selection Specifications For Heat Shrink Glands: 

Selecting the proper type of gland is important to have the ultimate protection against all the possible odds. The standard working temperature range is – 55^o– +90⁰ . The major specifications that guide for proper selection of electrical heat shrink glands for a particular cable connection are:

• Peak elongation
• Tensile strength
• After aging tensile strength
• Water absorption
• Volume resistivity
• Dialectric strength
• Shrink start temp.

Wide Range of Heat Shrinkable Glands for Electrical Cables: 

The heat shrink section of electrical glands is adhesive pre-coated to make the cable entrance secured against all the mechanical and environmental pressures. Adhesive keeps the cable rigidly placed at the original position despite tough working conditions. On the basis of designing and capacity parameters, heat shrink glands can be classified as:

• Type A1: For un-armored cables with plastic or an elastomeric outer sheath where primary function of electrical gland is to securing the outer sheath.
• Type A2: It is similar to ‘Type A1’ but it has IP68 seal between gland and outer sheath.
• Type A3: It is similar to ‘Type A1’ but it is designed with an electrical bond suitable for inner metallic sheath.
• Type A4: As ‘type A2’ but with an electrical bond for the metallic inner sheath.
• Type B: For wire braided or armoured cables.
• Type C: For wire braided or armoured cables with plastic/ elastomeric outer sheath. The heat shrink glands of this class have IP68 seal between gland and outer sheath.
• Type D1: Very similar to B, but these have IP68 seal between the threaded fixing component and inner sheath.
• Type D2: As type D1 but with an electrical bond for the metallic inner sheath.
• Type E1: For wire braided or armoured cables with plastic inner sheath, elastomeric outer sheath. These are similar to ‘type C’ glands but with IP68 seal between the inner sheath, threaded fixing component, and gland.
• Type E2: Similar to ‘type E1’ but these have an electrical bond for metallic inner sheath of cables.

Gala Heat Shrinkable Glands – The Best-Ever Choice of Electrical Engineers:

Heat shrinkable cabling glands are available in range from 5mm to 61mm diameter. The best quality electrical Polyolefin glands, designed for pressure sealing up to 25 psi and 600 Volts rating, provide excellent strain relief. The premium heat shrink glands manufacturing brand, Gala Thermo offers the range of heat shrink glands; the best suitable can be had on the basis of:

• Supplied ID (mm)
• Recovered ID (mm)
• Cable Diameter Range (mm)
• Length (mm)
• Internal diameter (mm)