Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,396 pages of information and 233,863 images on early companies, their products and the people who designed and built them.
South Wales Switchgear, makers of electrical switchgear, of Treforest and Blackwood, Monmouthshire.
South Wales Switchgear led the way in exploiting SF6 gas as a medium of interruption and insulation. Traditionally, South Wales Switchgear were involved in the design and manufacture of 11kV – 33kV switchgear and DC type switchgear for naval projects.
1941 Private company.
1961 Manufacturers of electrical switchgear and power transformers. 2,000 employees.