Does the person on standby need to have the person working in the confined space in sight at all times?
As the person on standby has to remain outside the confined space it is not always possible for them to keep the person/s working inside the confined space in sight at all times. Continuous communication with the worker/s inside the confined space must be maintained. Dependent upon the location, communications may be achieved using: • voice; • radio (intrinsically safe one if used in flammable conditions); • mobile phone (not to be used if flammable gas or vapour is present in sufficient concentration to cause explosion or fire); or • hard wired communications.
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