RAIL bosses have warned that overhead power lines are ten times more powerful than the electric chair and a shock could melt the coins in your pocket.

The stark message comes as Network Rail and the British Transport Police attempt to counter the sharp annual rise in offences on the railway during the school summer holidays.

Network Rail has revealed West Yorkshire has the highest level of trespassing and vandalism on the lines in Yorkshire and Lincolnshire.

The area had 370 incidents between March 2010 and April 2011, more than double the level in South Yorkshire.

In Huddersfield there have been a number of incidents of people throwing stones at passing trains. The organisation has released a hard hitting video on its website to highlight the dangers of messing about near the tracks.

It said it wanted to dispel urban myths about electrified lines after a survey revealed nearly two- thirds of parents in Yorkshire have not discussed railway safety with their children. The study showed nearly half of mums and dads did not realise that electrical power is on all of the time.