*Root concrete diameter based on poor soil or better, min. 230kN/m² per m
*Concrete dimension based on a minimum ground bearing pressure of 150kN/m² (passive concrete design). (S = square dimension, H= depth)
*Outreach brackets series PR1 & PR2 below 0.50m projection fit onto 100mm spigot (/SP1). 0.50m + on standard 230mm spigot (/SP).
Based on UK rationalised wind loading factors for EN40
The two manually operated units, RLH1M (light loads only) and RLH2M are designed to lower and raise the columns in a safe, simple and efficient manner.