Sell Molded Trefoil Clamps

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Trefoil clamps are used for high voltage single core or higher sizes cables where the current rating is high & 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.

Sumip Trefoil clamps have been molded from virgin glassfiber filled material.

Sumip Type TRE 28 Trefoil clamp has been tested satisfactorily at CPRI to withstand 50 KA short circuit fault current with spacing between Trefoil clamps kept at one meter distance.
Advantage of Sumip Trefoil Clamps
High mechanical strength
Center distance between Trefoil clamps can be increased for lower fault level than 50 KA & hence total
requirements of clamps can be reduced thereby reduction in cost.
Long service life as practically not affected by all chemicals, acids and alkalis.
Design of clamp & good flexural strength gives good grip on cable & accommodates slight deviation in diameter of

Sumip Trefoil Clamps are supplied with bolts, nuts & washers which are generally MS Zinc passivated but
galvanized, SS hardware can be supplied against specific requirement.
Flame retardency feature can be provided against specific requirement.
Aluminum Trefoil clamps can also be supplied if required.