BATTERY CLAMP

摘要

There is described a battery clamp (1), comprising: a fastening clamp member (10) designed for attachment to a terminal of a battery; means (33) for receiving a cable (30); and a guard circuit (100) coupled between the fastening clamp member (10) and the receiving means (33). The guard circuit (100) comprises: a controllable switch (110), of which a current input (111) is electroconductively connected to the fastening clamp member (10), and of which a current output (112) is electroconductively connected to the receiving means (33); a control unit (130), of which a control output (133) is coupled to a control input (113) of the switch (110); and monitoring members (141-143) connected to monitoring inputs (134-136) of the control unit (130). The control unit (130) is adapted to control the switch (110) in response to signals received at its monitoring inputs (134-136).