Primus 45 Foot Guyed Tower Kit
This tower kit is designed specifically for the Primus Wind Power AIR 40 and AIR 30 wind turbines. To our knowledge this is the most economical and user-friendly tower kit available for the AIR wind turbines. Two level, guy wire supported construction allows the use of lightweight tubing while providing plenty of strength, even in high wind conditions. Two people can easily erect the kits in a few hours. Since the turbine and the tower kit are light in weight, no winches, vehicles or beasts of burden are needed to erect the tower. All that is required is the necessary tubing, the proper anchors for your soil, and a little bit of “elbow grease”. We recommend that at least two people be present when the tower is raised, although it is conceivable that a single person could actually raise a tower on their own.
The AIR tower kit includes a simple yet effective elbow/tee for its base. Combined with a short length of tubing this type of base eliminates the need for a concrete pad, base plate and a swivel for the base of the tower. A simple extruded aluminum, coupling clamp allows the use of a wide selection of different kinds of tubing, depending on availability, site requirements and customer preference. Threaded coupling points are eliminated, allowing lighter materials to be used with the same or greater strength than a threaded pipe tower. The upper guy wire attachment clamps onto the upper mast section. This reduces the number of pieces of tubing used to construct the tower and reduces the stresses concentrated at this point. While this method is easier to assemble, the main benefit is an increase in the fatigue strength of the tower, which allows lighter weight materials to be used with greater safety. Pre-cut and swagged guy wires eliminate wire measuring and cutting.
We believe this kit and assembly method is the easiest way possible to put the AIR wind module up in the air.
Due to the high cost of shipping and the widespread availability of the tubing or pipe used with these towers these materials are not supplied with the kit. The AIR wind module is designed to be mounted on a 1.875 in. outside diameter pole. This is the same outside diameter as 1 ½ in. steel water pipe where the “1 ½” is a nominal size indicating an outside diameter that is actually 1.875 in.
The design of this tower kit allows pipe (or tubing) of various different wall thickness to be used depending on the severity of the wind at your site location.
Use the following table to determine the acceptable pipe size(s) for your tower and wind severity.
In most locations structural steel tubing with a wall thickness of .065 inches is sufficient for the conditions and preferable in terms of cost and ease of assembly. Electrical conduit must be avoided for use in your tower assembly, since it is generally not designed for strength.