ESB insists on special red ducting for ALL power cables and it must be printed up with warnings etc. That includes the hockey sticks.

They've a fairly weird but effective way of enforcing these construction standards. They will dig and sample at random points and check the visible parts. If ANY part is not up to their code they will insist on reinstalling the ENTIRE thing! So it's something that developers take extremely seriously as failure to meet ESB inspection can cost a lot of money.