Environmentally friendly materials for switchgear equipment

The techniques to introduce alternative materials into switchgear equipment are described. A circuit breaker has been used as a demonstrator to define the functional performance requirements and develop the procedures of material selection while the environmental characterisation has been performed using an Eco-design tool. Material selection has been principally based upon their ability to reduce their impact on the environment during their full life cycle. When using this approach conventional qualification testing is still required to confirm the material's fitness for service. (7 pages)