Sealing Cables | Decarbonisation & Storage Depot Case Study
Published 26 Oct 2023
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Substation Cable Sealing
Thorne & Derrick are Approved Distributors for CSD Sealing Systems – we have specified and distributed their products across numerous onshore and offshore substation projects.
CSD Technical Services were recently contracted to carry out water and gastight sealing of cable entry points.
This was on a DNO substation at a council maintenance and storage depot. This was also a part of an action plan to reduce carbon emissions across the site.
Using CSD’S NOFIRNO Duct Seal System distributed by Thorne and Derrick, it has successfully sealed all entry points, helping to prevent any water or gas ingress in the building.
Completing the seal with a 20mm layer of NOFIRNO sealant will provide a technically advanced and high performance duct seal. View the complete range of CSD Sealing Systems to protect against damage caused by water ingress, gas spread or fire/flame to cables and ducts.
NOFIRNO | Substation Sealing | CSD The NOFIRNO Duct Seal is designed to provide simple and effective long term building entry sealing protection. The system can be used in new build projects or in retrofit applications to replace existing failing seals. It can be installed directly into concrete openings, plastic ducting or into any existing transit frames.
Substation Duct SealingÂ
The site remained operational throughout the installation, with CSD working alongside and in partnership with other contractors and existing site workers. The NOFIRNO Duct Seal System was the selected solution for sealing the entry points.
Outcome of using the NOFIRNO Seal System
All entry points into the substations were successfully sealed using CSD’s NOFIRNO Duct Seal System to prevent any water or gas ingress within the building.
This was to ensure the site remained operational. The openings within the control room which consisted of 37 x 160mm cable ducts and a 1 x 690mm x 900mm cable entry, was sealed along with a 1 x 230mm x 430mm cable entry in the DNO building.
A second visit to site was made to remove 1 x 150mm installed seal following the installation of an additional cable. This seal was then resealed using the NOFIRNO Duct Seal System. The client feedback was very positive, and they will be looking to use CSD for future projects.
NOFIRNO Duct Seal System
The NOFIRNO Seal System comprises of two components; 60mm rubber NOFIRNO multi-sleeves which providing the cables with support, ensuring separation.
It helps provide a backing for the second component which is a 20mm layer of NOFIRNO Sealant. To ensure the NOFIRNO Sealant adheres correctly, the areas where the sealant is to be applied should be clean and dry before application.
For example the cables and any frames and structures. The NOFIRNO multi-sleeves are then installed providing cable separation and a firm backing for the NOFIRNO Sealant layer.
NOFIRNO duct seals consist of rubber multi sleeves which are in bonded strips of 10 sleeves and a high quality silicone based sealant which are quicker and easier to install than the CSD standard RISE duct seals.
The bonded sleeves can be easily torn off for filling smaller gaps and using cutting tool sleeves can be quickly slit to allow fitting around cables ensuring cable separation – NOFIRNO duct seals are also used to pack the free space, providing a backing for the application of the cable sealant.
Key Benefits of Duct Seal Systems
• Tested to prove no deterioration in performance
• Provides flood protection and prevents water and gas ingress. The pressure is rated up to 2.5 bar from the front and back of the seal.
• Quick and easy to install
• Easy re-entry for adding, removing or replacing cables
Further ReadingÂ
- 66kV 72.5kV | Power Cables Accessories for Offshore Windfarms
- Supplying Cable Termination, Jointing, Pull-in & Electrical Equipment up to 66kV
- CSD Marine Grade Cable Transit Sealing System Supplied Onboard Kintra II Passenger Vessel
More Cable Sealing Case StudiesÂ
- Sealing HV Cables | A Battery Energy Storage Systems (BESS) Case Study
- Sealing Cables | 400kV Substation Cable Sealing using CSD Systems
- Sealing Cables | Windfarm & Substation Cable Sealing using CSD Systems
Specialist Distributors to the UK and international Offshore Wind & Renewable industry to provide safe and reliable LV HV Electrical Cable & Power Distribution Systems up to 66kV – we are highly customer responsive and absolutely committed to providing a world-class service. Contact our UK Power Team for competitive quotations, fast delivery from stock and technical support or training on all LV-HV products.
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