Posted By Pat Organ I am looking for some guidance notes on Tower Cranes when there is a lighting storm. At what stage do the driver and banksman stop? If lighting strikes the crane the banksman is in serious danger on the ground, and the driver if he decides to come down the ladder. Is there not some rule of distance between bangs of thunder to know how close the storm is to you? What distance could lighting strike a crane from. Cheers Pat

Posted By alex mccreadie You should check the weather forecast and if storm warnings crane should be put into its out of service configuration. These can be found in the Operators handbook supplied by the manufacturer. Operator and Banksman removed from area. Guidelines are in BS7121 Part 5 Tower Cranes should be fully and completely earthed to eliminate risks and damage from lightning strikes.