Extension cord, socket and cover of a socket

摘要

The present invention relates to an extension cord comprising a lead having a first end and a second end. The first end comprises a socket having a cover and the second end comprises a plug. The cover is attached to the socket by a hinged joint possessing a force which resists opening of the cover. The cover comprises a retainer. The present invention also relates to a socket having a cover and a cover of a socket.