01.2 Applying Z460 in the construction sector and field experience

Worker fails to verify zero energy state at a refrigeration plant before being in the vicinity and working on equipment. Energy release results in 3 fatalities.

Supervisor verifies zero energy state, but does not have control of supply side of electrical gear. Worker begins to work on measuring for wire length with metal fish tape at the source bus bars when they became energized. Worker suffered extreme burns and skin loss, but lived with 65 skin grafts later and 3 years in hospital. Worker was 25 and is permanently disabled.

Electrical worker was working on 347 lighting, turned off switch, but did not verify zero energy state. Upon uncoupling wires was shocked with single phase of 347 which was still live. Heart condition persisted and worker has reduced physical capabilities as a result.

Customer shopping in big box store was walking down isle when a heavy large item fell from racking above crushing customer. Person later died from injuries in hospital. Store workers failed to isolate and prevent material from falling from potential energy release resulting in the above incident.