Electrical equipment in care work includes ventilators, monitoring equipment, power-assisted beds and household appliances, and risk comes from shock (burns, heart damage, death) and electrical fires, with older devices, damaged cords and plugs from frequent movement, cables caught in bed mechanisms and home equipment never inspected by an electrician. Only a qualified electrician should repair electrical issues. The PCBU must manage electrical risks, eliminate them as far as reasonably possible and otherwise minimise them, and must ensure electrical equipment is suitable, safe and maintained wherever it is and whoever owns it, including that residual current devices are installed (fixed at the switchboard or socket, or portable), with workers who give care in homes provided a portable RCD, and tested regularly with a daily push-button test by the user and a tripping time test by a suitably qualified person every six months. Malfunctioning equipment must be disconnected, isolated and removed from use where safe, only competent persons such as electricians should test and tag equipment before use or after suspected malfunction, reporting arrangements should tell supervisors and workers of equipment taken out of service, and workers must not use equipment in hostile conditions such as wet or dusty areas or outdoors unless made for them.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.