Abstract: An electrical installation in a floor of a building for providing electrical power to telephones, computer terminals and other electrical equipment has a floor plate mounted substantially flush with the floor of the building. The installation comprises an insulative housing including a connector for making electrical connection to the electrical equipment and to a source of electrical power beneath the floor. The housing is resiliently supported beneath the floor plate so that upon application of a load, the housing yieldably displaces under the load to prevent damage to the housing and connector.