Typically duct seals should conform to BSEN1366 Part 3 (Fire Resistance Tests For Service Installations. The picture opposite shows unsealed electrical ducting and void openings located at a waste water treatment (WTW) plant – the open cable ducts undermine the purpose of the nearby fire door and should be sealed using fire rated cable duct seals. These entries such as open cable ducts entering substations or buildings should be sealed with or without cables installed to prevent ingress of water and gas – a common reference point in the UK is Engineering Recommendation ENA-ER G17/3 Leakage Of Flammable Gases.ĭuct Seals WIMES | The Water Industry Mechanical and Electrical Specifications (WIMES) define the requirements for a wide range of mechanical and electrical equipment used in the UK water industry including cable duct seals.
The electric utility will have an approved method and material to seal ducts in all new, altered or retro-fitted cable installations – this includes the sealing of cable ducts where the ducting enters the switch gear building.
In the UK the DNO’s (Distribution Network Operator) hold a statutory requirement to prevent danger due to the influx of water, or any noxious or explosive liquid, hydrocarbon or gas from the surrounding ground into substations, street boxes and buildings. 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.ĭuct seals are installed by contractors to reinforce the flood defences of MV-HV substations housing critical medium and high voltage power cables and electrical equipment, typically at medium voltage ( 11kV/33kV), high voltage (66kV-132kV) and transmission and distribution grid networks – we can provide expert technical specification, onsite installer training and fast delivery from stock to UK and international projects for both cable ducts and duct seals. ➡ Failure to correctly and effectively seal cable ducts can inflict catastrophic damage to LV-HV electrical distribution networks, substations and power supply. Their modules are inserted around cables or pipes in frames that are attached to a structure by welding, bolting, casting or core drilled holes for a smart, safe and easy solution.įiloSeal+ is a universal solution for sealing cables and pipes in ducts or bore holes and is suitable for sealing several cables or pipes contained in one duct and also allows re-entry of the seal to add/remove cables or pipes as required.Duct Seals & Sealing Systems | Watertight | Gastight | Fire Resistant | Resist Rodents | Cable Sealing Products LV MV HV Cable Duct SealsĬompetitive Prices | Large Stocks | UK & Exports Sales | Technical Support Roxtec offer a complete sealing solution for use across a huge range of industries both on land and at sea. Tyco RDSS Rayflate inflatable duct seal consists of an inflatable bladder with a sealing strip which is fitted around the power cable in a duct and inflated to create a watertight seal and is very versatile, adapting to most configurations independent of duct ovality. With a range of duct sealing systems that include Tyco’s Rayflate duct seal, Roxtec’s modular sealing systems and Filoform’s Filoseal+, Filoseal+ HD re-enterable duct sealing system and the Filsoseal+ HD FIRE re-enterable duct sealing system which is a certified fire, gas and water sealing system for both ducts and transit frames, Jointing Tech have a duct sealing system in stock for every project.
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