Managing risks associated with working in heat (this topic is quite extensive, please use link below for more info)
Identifying hazards—find out what could go wrong and what could cause harm.
“* Review work tasks, design and management. Monitor temperatures in the workplace, the type of work being carried out, the duration and how strenuous the work is.
* Ask your workers about any problems with heat that they have encountered at your workplace.
* Review your incident and injury records.”
“Potential controls include scheduling work to cooler parts of the day, minimising physical effort requirements and performing work in safer locations.
You should ensure workers have access to cool fresh water, air-conditioning or fans (if possible) or access to shade for outside work.
*Where possible, you should not allow workers to work alone. If they must, then establish procedures for monitoring them and ensuring they can easily seek help.
*When working in heatwave conditions is necessary, you should plan tasks so workers are encouraged to self-pace their work where possible.”
In some circumstances, workers have a right to cease or refuse to carry out unsafe work. Workers have this right if they have a reasonable concern that they would be exposed to a serious risk to their health and safety from an immediate or imminent hazard, such as illness due to exposure to heat.
Click link below for more infomation
https://www.safeworkaustralia.gov.au/topic/working-heat 