Power Cable Jointing Kits (Up to 33 kV)

No — XLPE and PILC cables require different kit types due to fundamental differences in insulation geometry, dielectric properties, and preparation requirements. PILC cables have paper insulation impregnated with oil or compound, which requires specific sealing against migration of the impregnant into the joint zone, and a different stress control approach compared to extruded XLPE insulation. For joints between an XLPE and a PILC cable — a transition joint — a specific transition kit is required that addresses the preparation and sealing requirements of both cable types at the respective cable ends. Specify both cable types when ordering a transition joint kit.

A straight-through joint connects two cable ends in line — the standard configuration for extending a cable run or reinstating a cable after a fault section has been removed. A branch joint (T-joint) connects a branch cable to a main cable run, allowing a distribution tap to be taken from the main cable without interrupting its continuity. Branch joints are more complex to install than straight-through joints and require a different kit configuration, including branch connector and trifurcation components. Confirm the joint type clearly when ordering as the kits are not interchangeable.

Yes. Western Cablex power cable jointing kits are suitable for direct-buried, duct-installed, and joint-bay applications. The adhesive-lined outer oversheath components form a continuous moisture seal over the joint body — providing resistance to groundwater ingress in buried conditions. For direct-buried applications, confirm that the outer mechanical protection is appropriate for the backfill conditions — particularly in rocky or aggressive soil environments where additional mechanical protection may be specified. In some project specifications, a rigid joint box or enclosure is required over the heat-shrunk joint body — this is a site requirement and is separate from the heat shrink kit supply.

The conductor connector — typically a compression ferrule — may be included within the kit or specified separately depending on the kit configuration and the conductor size range. Compression ferrules must be appropriate for the conductor material (copper or aluminium) and must be installed using a torque-controlled hydraulic crimping tool compatible with the ferrule die size. For aluminium conductors, bi-metallic ferrules are required where the cables being jointed are of different conductor materials. Confirm connector supply when ordering, and specify the conductor material and size on both cable ends.

Power cable jointing at MV is a skilled trade requiring formal training in cable preparation, connector crimping, and heat shrink application techniques. Most utility and EPC project specifications require jointers to hold recognised qualifications — in India, this typically includes trade certification under relevant electrical safety regulations and, for utility work, compliance with DISCOM or CEA installation requirements. Western Cablex jointing kits are supplied with detailed installation instructions. For new jointing teams, we can provide technical support and installation guidance to assist with kit familiarisation before field deployment.

Western Cablex power cable jointing kits cover a standard conductor size range from small LV cross-sections up to larger MV feeder cable sizes. For conductor sizes outside the standard range, or for cable constructions with non-standard insulation outer diameters, contact our technical team with the full cable specification — including conductor size, insulation type, insulation outer diameter, and overall cable outer diameter — so that the correct kit size can be confirmed or a project-specific solution identified.