be68bdaa_tion_in_New_Zealand___Worksafe_le_3__Power_tools_hazard_table_Possible_consequences
[Hazard] Working with or around power tools [Safe work practices] Conduct pre-start inspections of tools. Keep power cords away from sharp objects, oil, grease and hot surfaces. Always use a RCD (residual current device) or isolating transformer when using electric power tools. Workers should know how to test a RCD before they use it. Use a 'dead man's switch' (or other safety device) on power tools that prevents the motor and rotating parts from operating when the operator releases the switch. Never use power tools when under the influence of drugs or alcohol. Some prescription medication may also have negative effects on the operator. Ensure chains and blades are sharpened to the manufacturer's specifications. [Possible consequences] 
Electric shock Electrocution Fatigue
Demolition - Best practice guidelines for demolition in New Zealand | Worksafe
Possible consequences