Thermal protection for electrical installations and fittings

摘要: An electrical fitting such as a socket (1) is provided with thermal cut-out (16) to disconnect the power supply in response detection of an abnormal increase temperature caused, for example, by loose or faulty connection. The connected across earth and neutral terminals normally open closed when detected cause fault that trips residual current detector (RCD) (1). cut out may be switch (17) operable responsive actuator (18). In one embodiment (Figure 4) , comprises contacts held apart (open circuit) thermally spacer melts at pre determined allow come together (closed trigger RCD (Figures 4 5).