Separation of crane: UNE 58-101-92 standard, mandatory according to Royal Decree 836/2003. Paragraph 4. 1 this standard UNE reads as follows: If several cranes are near each other, their situation will be established in such a way that between boom and mast, susceptible to crashing parties, a minimum distance of 2 m. The vertical distance between lower (high position or air counterweight-hook) higher crane element and the element most high, susceptible to collide; another crane will be a minimum of 3 m. If the cranes move, will prevent from by means of an appropriate system that they approach closer than any of those mentioned in the preceding paragraph.
