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Trefoil Clamps, Glassfiber Filled Moulded

Trefoil clamps are used for high voltage single core cables where the current rating is high and 3 core cables are not available. Sumip trefoil clamps are used for laying single core cables in trefoil touching formation, which helps to maintain magnetic symmetry thereby avoiding electromagnetic heating and loss of current. These clamps have been moulded from virgin glassfibre filled material and tested satisfactorily at CPRI to withstand 50 kA short circuit fault current with spacing between trefoil clamps kept at a one-meter distance. These trefoil clamps are supplied with bolts, nuts and washers, which are generally MS zinc passivated but galvanised, SS hardware can be supplied against specific requirement; flame retardancy feature can be provided against specific requirement; and aluminium trefoil clamps can also be supplied if required.