RIGHT ANGLE BOOT-RUBBER MOULDED
RIGHT ANGLE BOOT-RUBBER MOULDED
A Right Angle Boot is a moulded insulating cover designed to protect the connection point where a cable’s conductor joins equipment such as transformers, switchgear, motors, or bushings — especially when the cable approaches at a 90-degree angle.
Its primary functions are:
- Electrical insulation of exposed conductive parts
- Environmental sealing against moisture, dust, and contaminants
- Mechanical protection against abrasion and accidental impact
- Stress relief to prevent bending forces from damaging the cable or lug
When made from rubber moulded material, it offers excellent flexibility, toughness, and long-lasting resistance to electrical and environmental stresses.
Construction and Material
Right Angle Boots are generally made from high-quality EPDM (Ethylene Propylene Diene Monomer) rubber or silicone rubber. Key properties include:
- High dielectric strength to withstand operating voltages
- Excellent elasticity to accommodate movement and vibration
- Resistance to UV radiation, ozone, and weathering (especially important for outdoor use)
- Thermal stability across a wide temperature range (typically –40°C to +120°C or higher)
- Good chemical resistance against oils, greases, and industrial pollutants
- Hydrophobic properties, reducing water tracking risk
Some versions are also available with semi-conductive layers or graded insulation for even better control of electrical fields at high voltages.
Applications in Termination Kits
- Used for terminations at equipment bushings, where space constraints demand a compact, angled solution
- Ideal for indoor and outdoor terminations on transformers, switchgear, motors, and junction boxes
- Frequently specified where phase-to-phase or phase-to-ground clearances are limited
- Especially important in high-voltage (11kV, 22kV, 33kV, and above) terminations where flashover risks are higher