Of course primarily the owner of the mast, but the property owner can also be held responsible - unless the conditions are regulated in an agreement with the owner of the mast.
The mast is normally designed for the antenna equipment already mounted. In those cases a new calculation of the stress of the material involved must be made, and the blueprints revised.
In case the mast owner and/or the property owner has deemed it possible that there is a risk of unauthorized persons climbing a mast, a fence may be set up, or metal sheets attached to the mast, to create a climbing obstacle.
A fall safety device is a permanent or temporary construction to prevent someone from falling to the ground in case he loses his hold. There are a number of different fall safety devices, and they should be customized to the structures where they are put.
The usual recommendation is approximately 2/3 of the height of the mast. Normally icicles, for instance, do not fall farther out from the mast than that. When work is being done on a mast, the danger zone should be extended as much as necessary.
Mast- och tornunderhåll AB
Verkstadsgatan 1, 731 60 Valskog, Sweden
Phone: +46 221 320 66
Fax: +46 221 320 12
Mobile: +46 70 37 35 300