Extensive research has allowed ALLTEC to create a lightweight, low wind loading ESE system to provide a safe and efficient manner of controlling dangerous lightning energy before it damages a structure or its important contents, including human occupants. The TerraStreamer® ESE air terminal initiates the upward connecting streamer earlier in time than a traditional lightning air terminal, thus extending the effective range of protection over and above that of conventional lightning air terminals. By utilizing this advanced technology, TerraStreamer® ESEs provide lightning protection to facilities that would otherwise be difficult or cost prohibitive to protect by conventional means.
Protection Areas | |||||||
Height (m) | 2 | 3 | 4 | 5 | 6 | 8 | 10 |
Protection radius (m) for Level I | 25 | 37 | 50 | 62 | 62 | 63 | 63 |
Protection radius (m) for Level II | 28 | 42 | 55 | 69 | 69 | 70 | 71 |
Protection radius (m) for Level III | 32 | 48 | 64 | 80 | 80 | 81 | 82 |
Protection radius (m) for Level IV | 36 | 53 | 71 | 88 | 89 | 90 | 91 |
The TerraSteamer® ESE Terminal tip should be at least 2 meters higher than the area that it protects, including antennae, cooling towers, roofs, tanks, etc.
If the external installation for a given structure comprises several ESE Terminals these are to be interconnected by a suitable conductor, unless it has to be routed over a structural obstacle (cornice, parapet wall) with a positive or negative level difference in excess of 1.5m (see Fig. A).
When ESE Terminals protect open areas such as playing fields, golf courses, swimming pools, camping sites, etc., they should be installed on specific supports such as tower mast, lightning poles, pylons, or any other nearby structures which enable the ESE Terminal to cover the area to be protected.
The ESE Terminal height may be increased by means of an elevation mast. If the ESE Terminal is steadied by conductive guy lines, these should be connected at the bottom attaching points to the down conductors by means of suitable conductors.