Proven Solutions to Specific Maintenance Problems in Electrical Distribution

North American HQ, Miami, USA Asia-Pacific HQ, Sriracha, Thailand Canada HQ, Toronto, Canada Chinese HQ, Hong Kong European HQ, Harrogate, UK

Over 140 Belzona Distributors Worldwide Belzona Represented in more than 120 Countries Servicing Your Needs Fully Trained Consultants Approved Contractors Customer Training On Site Supervision 24 Hours a Day 7 Days a Week Belzona International Distributors

Belzona Product Range Belzona 1000 Series Metallic Polymers Belzona 4000 Series Magma Polymers Belzona 2000 Series Elastomeric Polymers Belzona 5000 Series Barrier Polymers Belzona 3000 Series Polymeric Membranes Belzona 8000 Series Maintenance Systems

Belzona can provide solutions to common problems found in Substations including: SF 6 leaks Transformer LeaksInsulator Damage Facilities Maintenance

Transformer Leaks Conventional Solutions Clamps - Costly and not always available for geometry Welding - Hot work / draining issues – not online repair Conventional putty- Poor adhesion & compressive strength Water contamination Internal and external corrosion Impact and abrasion damage Coating Breakdown Due To :

Company Problem Application Details Leaking Transformer Fins Wind Farm, UK Lower edge of fins on oil filled transformer corroded and starting to leak. Problem caused by sheep rubbing against fins, damaging paint system. Application was carried out in accordance with Belzona Know-How System Leaflet TCC-1. Pre-formed doubler plates were bonded over the corroded areas after manual surface preparation

Company Problem Application Details Leaking Transformer Flanges Power Plant, West Tennessee USA Leaking flanges created an environmental hazard and the transformer could not be drained for repair. The application was carried out using a modified Belzona Know-How System Leaflet GSS-4, temporarily stopping the leak with Belzona1831 before encapsulating the flange with a Belzona 2000 series elastomer.

Company Problem Application Details Leaking Transformer Fins National Grid, UK Oil Leaks at bolted flanges resulting in contamination and slip hazards Application was carried out in accordance with Belzona Know-How System Leaflet VPF-11a. All works were carried out without the need to drain down the transformer

Product Features Benefits Featured Product Belzona 1831 Optimised for adhesion to less than optimally prepared surfaces, displaces oil and water Reduced need for optimal preparation of surfaces, allowing easier and effective repairs in-situ. No necessity to drain down equipment prior to repair.

No hot work required On-line repair - no need to drain No galvanic effects High adhesion to a huge range of materials Surface tolerant High compressive strength No shrinkage Simple and safe to use Environmentally friendly Rapid turnaround Turnkey Solution A Cost Effective Alternative Solution to Sealing Leaking Transformers Belzona Solutions for Transformer Oil Leaks

SF 6 Leaks Conventional Solutions New gasketing - Shutdown of equipment required Mastic Sealant- Ineffective and short term Conventional putty- Poor adhesion & compressive strength Water contamination Internal and external corrosion Aging of gaskets UV Deterioration of mastics Due To :

Company Problem Application Details Leaking Switchgear Flanges Electric Distributor, Australia SF 6 leaking through flanges due to failure of original mastic sealant Following removal of the failed system by grit blasting, a Belzona 1000 series system was used to seal the flange joint. Leak detection proved success of the repair and resulted in a further 515 flanges being sealed.

Company Problem Application Details SF 6 Leaks through Flanges Hydroelectric facility, BC Canada Leaking joints were resulting in regular refilling of the SF 6 gas. Application was carried out in accordance with Belzona Know-How System Leaflet GSS-4. Injection methods were used to force the Belzona 2000 series Elastomer between the flanges. The repair has been in service for over 10 years and numerous repairs have been done.

Company Problem Application Details SF 6 Leaks on Circuit Breakers Power Company, UK SF 6 leaks at porcelain insulator bush seal to circuit breaker After completion of surface preparation to both the aluminium and porcelain the junction was sealed using the fast curing Belzona 2311 system.

Product Features Benefits Featured Product Belzona 2211 MP-Hi-Build Elastomer Elongation under ASTM D412 is typically 700% and in addition Belzona 2211 has excellent adhesion Being optimised for flexibility to bridge moving surfaces whilst maintaining high adhesion allows the system to absorb small movements of flanges etc without loss of sealing

No requirement for Depressurisation High adhesion to a huge range of materials Surface tolerant Flexible High compressive strength No shrinkage Simple and safe to use Environmentally friendly Rapid turnaround Turnkey Solution A Cost Effective Alternative Solution to Sealing Leaking SF 6 gas Belzona Solutions for SF 6 Leaks

Porcelain Insulator Damage Conventional Solutions Replacement - Lead Time Issues Conventional putty- Poor adhesion Rough Handling Impact Damage Vandalism Flashover Due To :

Company Problem Application Details Repair of Broken Insulators Power Distribution company, France Damage to insulator preventing safe performance Moulds were made for the Insulators using Belzona 2200 series Elastomers, before casting and bonding the new profile using Belzona 8111

Company Problem Application Details Damage to Insulator Bushings Power Station, Egypt The insulators had been cracked and broken and were not functioning correctly The application was carried out in accordance with a modified version of Belzona VPF-1 & -2. Original profiles were restored with a Belzona 1100 series system and a smooth top surface created using Belzona Ceramic Coatings

No hot work required In-situ repairs High adhesion Surface tolerant High dielectric strength High compressive strength Water shedding Simple and safe to use Environmentally friendly Rapid turnaround Turnkey Solution A Cost Effective Alternative Solution to Repairing Damaged Insulators Belzona Solutions for Porcelain Insulators

Facilities Maintenance Problems Conventional Solutions Tarpaulin - Temporary solution Re-Roofing - Lead Time and Disruption issues Concrete repairs- Cannot be feather edged, lengthy repair Leaking Roofs Concrete Damage Slips, Trips and Falls Due To :

Company Problem Application Details Spalled Concrete Power Station, UK Severe spalling of the electricity pylon concrete support columns accelerated by the acidic atmosphere generated by local industries Belzona 4000 series lightweight repair material used to rebuild the damage without the use of shuttering

Company Problem Application Details Roofing leaks Nuclear Power Plant, Maryland USA Roof leaks exacerbated by multiple roof penetrations and failure of existing roofing protection Application was carried out in accordance with Belzona Know-How System Leaflet RPA-1.

Company Problem Application Details Slip Problems Power Station, UK Slippage on steps when wet causing health and safety concerns Belzona 4000 series grip system applied to provide positive grip in wet, icy and oily environments improving safety

No hot work required In-situ repairs High adhesion Surface tolerant Local or Full Repairs possible Immediate Leak Sealing Emergency and Long Term repairs possible Simple and safe to use Environmentally friendly Rapid turnaround Turnkey Solution A Cost Effective Alternative Solution to Facilities Maintenance Problems Belzona Solutions for Facilities Maintenance

Belzona provides these solutions to many International Organisations: Transformer Leak Sealing SF 6 Gas Leak sealing in electrical switchgear Insulator Repairs Facilities Maintenance

Belzona systems will solve hundreds of maintenance problems including: How Can Belzona Help You? Shaft Repairs Frost and Corrosion Damage Containment Areas Expansion Joints Equipment HousingRoofing Protection Valley GuttersLive Leak SealingGenerator Repairs