The range
Boots, breakouts and seals protect the places where cables split into cores, connect to bushings or end inside enclosures. They give strain relief, keep out moisture and add the insulation and creepage distance that tight switchgear clearances cannot provide.
Customised designs available. If your project needs ratings, features, design requirements or arrangements outside the standard range below, we design and manufacture to your requirements and application. This includes cable sizes, diameters and lengths beyond the standard sizes shown, which we make to order.
Cable Breakouts
Heat shrink breakouts seal and give strain relief over the crutch of two, three, four, five and six core cables, including trifurcating breakouts for three core cables. Body and fingers are coated with adhesive for a watertight seal, in insulated, oil resistant and semi conductive versions, with flame retardant breakouts available on request. Cold shrink silicone breakouts cover two to six core cables and install without heat.
Right Angle and In Line Bushing Boots
Heat shrink boots in right angle and in line forms that insulate and seal cable connections to bushings, protecting cable against flashover and surges at switchgear and transformers. They are made from flame retardant polyolefin with thermal stability, in several sizes.
Cold Applied Insulation Boots
Silicone rubber boots that fit over the connection between a cable lug and an in line or right angled bushing, improving phase to phase and phase to earth insulation in switchgear and transformers where clearances are not enough for normal operation, or to protect against flashover from rodents or high humidity. They can be energised straight after installation, removed and re installed, and have an unlimited shelf life.
Straight and Right Angled Boots
Semi rigid, flame retarded heat shrink boots for strong mechanical protection, strain relief of connectors and complete environmental sealing, with or without an adhesive lining.
Anti Tracking Rain Sheds
Heat shrink rain sheds for single core and three core cables, coated with anti tracking adhesive, that add surface creepage distance to terminations and bushings.
End Caps
Heat shrink end caps coated with hot melt adhesive, with a valve fitting available, and cold shrink EPDM end caps that need no tools, seal cable ends during installation and storage and protect against moisture, ozone and UV.
Cable Entry Seals and Enclosures
A heat shrink cable entry seal that gives a watertight and fume tight seal where cables enter enclosures and bulkheads, and cable end enclosures for cable inlets and outlets inside switchgear that keep insects out of live equipment and prevent abrasion between cables and metal.
Specifications
Standard sizes and typical values are shown for each type. Larger, smaller and special sizes are made to order, and final selection is confirmed for each project.
Customised designs available. If your project needs ratings, features, design requirements or arrangements outside the standard range below, we design and manufacture to your requirements and application. This includes cable sizes, diameters and lengths beyond the standard sizes shown, which we make to order.
Heat Shrink Breakouts
Breakouts for two to six core cables, sealing the cable crutch.
Technical dataHeat shrink breakout
Cold Shrink Breakouts
Silicone rubber breakouts, installed without heat.
Technical dataCold shrink breakout
Heat Shrink Bushing Boots
Right angle and in line boots for connections to bushings.
Technical dataHeat shrink bushing boot
Cold Applied Insulation Boots
Silicone rubber boots for lug connections at bushings.
Technical dataCold applied insulation boot
End Caps and Rain Sheds
Seals and added creepage for cable ends and terminations.
Technical dataEnd caps and rain sheds
Applications
Delstar supplies these products for:
01Switchgear and Transformer Connections
Boots and insulation boots at cable to bushing connections.
02Multi Core Cable Crutches
Breakouts that seal and protect where cables split into cores.
03Mining and Trailing Cables
Six core breakouts for trailing, drive and control cables.
04Rodent and Humidity Protection
Insulation boots where flashover from vermin or high humidity is a risk.
05Cable Entries to Enclosures
Entry seals and end enclosures at switchgear and boxes.
06Storage and Transport
End caps that seal cable ends before installation.
Sourcing and quality assurance
Our cable accessories come from one of the largest manufacturers in the world, with a very large global footprint and more than 20 years developing and making heat shrink, cold shrink and cold applied cable accessories, with its own materials laboratories and high voltage test laboratories. It is ISO 9001 and ISO 14001 certified, and selected 15 kV and 33 kV terminations and joints have been type tested to IEC 60502-4 by an independent high voltage laboratory. Delstar checks each order against your specification and delivers across New Zealand, Australia and the Pacific.
Lifecycle support
- Installer training and certification: installer training and certification covers boots and breakouts along with the terminations and joints they go with.
- Specification and selection: we help match the breakout, boot or seal to the number of cores, the cable diameter, the bushing type and the clearances at the connection.
- Complete sets: we can supply boots, breakouts, rain sheds and end caps together with the terminations and joints they go with.
