Safety alert 03/2013 - Collision between 2 overhead travelling cranes pushes scissor hoist over

• The repair work was taking place on a two crane runway.
• Measures were not taken to prevent the second crane contacting the crane under repair.
• The handrail of the scissor hoist had been raised above the crane structure. 

1. Risk assessments need to be carried out prior to commencing repair/service work on a multiple crane runway. 
2. Safe work procedures are in place before such work is carried out.
3. Anti-collision equipment should be fitted to prevent contact between cranes on a multiple crane runway.

• Australian Standard AS 1418.3:1997 Cranes, Hoists and Winches - Bridge, gantry, portal (including container cranes) and jib cranes.
• Australian Standard AS 2550.1:2002 Cranes, Hoists and Winches - Safe use - General requirements.

Further information can be obtained from the WorkSafe Internet site or by contacting customer service on 1300 307 877 or email: 
safety@demirs.wa.gov.au