Abstract: A space frame having a high torsional strength comprising a first square bipyramid and two planar structures extending outward from an apex of the first square bipyramid to form a “V” shape is disclosed. Some embodiments comprise a plurality of edge-sharing square bipyramids configured linearly, where the two planar structures contact apexes of all the square bipyramids. A plurality of bridging struts, apex struts, corner struts and optional internal bracing struts increase the strength and rigidity of the space frame. In an embodiment, the space frame supports a solar reflector, such as a parabolic solar reflector. Methods of fabricating and using the space frames are also disclosed.

Abstract: A space frame having a high torsional strength comprising a first square bipyramid and two planar structures extending outward from an apex of the first square bipyramid to form a “V” shape is disclosed. Some embodiments comprise a plurality of edge-sharing square bipyramids configured linearly, where the two planar structures contact apexes of all the square bipyramids. A plurality of bridging struts, apex struts, corner struts and optional internal bracing struts increase the strength and rigidity of the space frame. In an embodiment, the space frame supports a solar reflector, such as a parabolic solar reflector. Methods of fabricating and using the space frames are also disclosed.

Abstract: The present invention provides a single housing assembly for a reduced voltage motor starter assembly. The housing assembly has a medium voltage compartment and a low voltage compartment. In this configuration the housing assembly ins structured to enclose both the medium voltage portion and the low voltage portion of the starter assembly.

Abstract: Hot spots in power conductors are monitored by apparatus comprising a temperature probe embedded in an electrically insulative thermally conductive material in surface-to-surface contact with the power conductor, typically at a joint being monitored. The temperature probe is spaced from the power conductor by the electrically insulative thermally conductive material a distance sufficient to provide electrical isolation, while the material has sufficient thermal conductivity that the temperature probe is able to substantiate trends in temperature changes at the joint. The invention can be incorporated into existing electrically insulative supports for the power conductors.