Central insulator replacement
Sometimes a need to change mast’s purpose occurs. For example a mast being a radio antenna is suppose to serve as a support structure for tv, radio, GSM and VHF antennas. This results in a rise in vertical load of a mast and therefore in a need to replace a ceramic central insulator with a steel supporting bearing. To perform this operation a mast must be lifted as a whole and the main support must be replaced. We perform such tasks successfully – in 2006 in Szczecin, on a 114-m-mast and recently in Kraków in 2011, on a 123-m-mast.