Electronic Conventional Sounder

Based on legislation , one or more devices are to be fitted and used to give all persons at any point ,where access to the conveyer belt installation is possible sufficient, prior warning for a period to be determined by the mines risk assessment, with a minimum period of 10 seconds, that any part of such a conveyer belt installation is about to be put into motion; The categories in this sub-section describe various belt safety devices used as Audio Visual Alarms.