Cathodic protection is the protection of (usually) subterranean metallic structures prone to electro-chemical corrosion from stray ground-conducted current.In the main, cathodic protection employs the use of a powered cathode and anode system that (1) offers a sacrificial corrosion target and (2) is able to lead stray current back to its output source.In this way, pipelines and metal reservoirs, as well as facilities such as rail infrastructure can be protected from stray current environments.
Control of corrosion of metal structures takes place by making systems work as cathodes of electrochemical cells by placing in contact with the metal to be protected another more easily corroded metal to act as the anode of the electrochemical cell.
Products on offer include:
- Sacrificial anodes – using carbon or low-conductivity metals
- Reference anodes for system testing
- Transformer rectifier units and other power sourcesTesting facilities, both for stray current evaluation, system design and efficacy testing as well as permanent system facilities for system testing