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Foam Fails | Compliant Duct Sealing Systems for Substations & Electrical Networks

Published 02 Mar 2023

Duct Seals

Duct Sealing Systems

Competitive Prices | Large Stocks | UK & Exports Sales | Technical Support | Site Survey & Demonstrations | Sealing Cables & Pipes

Most UK utilities have banned the use of expanding foam as a measure to effectively seal cable ducts against water ingress, gas migration or fire spread. Failure to correctly and safely seal cable ducts can inflict catastrophic damage to LV MV HV Electrical Distribution Networks, Substations and Power Supply.

Failure to correctly and effectively seal cable ducts can inflict catastrophic damage to LV-HV electrical distribution networks, substations and power supply. View below our complete ranges of Duct Sealing Products including cable transits to provide a watertight seal and defence against flood damage to low, medium and high voltage cable ducts with additional protection against harmful flammable gas migration and fire spread.

Contact Thorne & Derrick for largest UK stocks of several leading brands of Cable & Pipe Sealing Systems adopted by both electric (UK DNO Approved) and water (WIMES Specification) utilities. Call us with your Enquiry.

Expanding foam spray is effectively banned for sealing cable ducts in electrical and water utility sectors – the soft large cell structure will inevitably break down overtime and fail to provide adequate protection against water ingress or flooding into substations or buildings

Expanding foam spray is effectively banned for sealing cable ducts in electrical and water utility sectors – the soft large cell structure will inevitably break down overtime and fail to provide adequate protection against water ingress or flooding into substations or buildings