Installation of continuous steel sheet piling and bearing piles may call for site welding and cutting. This document offers recommendations and guidelines on welding problems encountered when making the more common assemblies, to supplement the information in EN 12063 and EN 12699.
When joining dissimilar steels, the steel requiring the higher welding energy is taken. In cold weather (below freezing), preheating to at least 80 °C is necessary, regardless of steel grade.
The charging pile (bolt) should have a good shielding function against electromagnetic interference; ⑤ The bottom of the pile (bolt) body should be fixedly installed on a base not less than 200mm above the ground. The base area should not be larger than 500mm×500mm; 3. Power requirements 4. Electrical requirements
Constructional detail: Lap welding is simplest and is recommended for site welds. Product tolerances must be to EN 10248-2. Steel weldability is dependent on many factors such as the weld heat input. The heat input from the arc slows the critical cooling rate of sheet pile steel and thereby reduces the risk of cold cracking.
The AC charging pile (bolt) should comply with IP54 (outdoor), and be equipped with necessary rainproof and sunscreen devices; 7. Three defenses (anti-moisture, anti-mildew, anti-salt spray) protection The printed circuit boards, connectors and other circuits in the charger should be treated with anti-moisture, anti-mildew, and anti-salt spray.
The electric pile (bolt) shell door should be equipped with an anti-theft lock, and the bolts fixing the AC charging pile (bolt) must be installed or removed after opening the shell door; 11. Temperature rise requirements