Abstract: A method is provided for controlling an induction welding operation. The method includes sweeping electrical current through an induction welding coil at an initial position of the induction welding coil along a weld path of a material; monitoring a response of the material to the swept electrical current using at least one electromagnetic field (EMF) sensor; calibrating an electrical current value for the induction welding operation using the monitored response; and performing the induction welding operation along the weld path using the calibrated electrical current value.

Abstract: A compression load distributor includes a support layer and a heat spreading layer. The support layer includes a flexible carrier configured to distribute a load from a compression load applying device. The heat spreading layer is coupled to and carried on the support layer, the heat spreading layer comprising a heat sink configured to transfer heat throughout the compression load distributor. The heat sink is thermally conductive and electrically non-conductive.

Abstract: A handrail installation with emergency lighting for tunnels, comprising a handrail, a closed cable duct, at least one flat cable that is installed along the closed cable duct, and multiple branching boxes for contacting the flat cable without stripping of insulation. The branching boxes contact the flat cable within the closed cable duct. The handrail and the cable duct rest on support surfaces, which are different from one another, on the top side of multiple support members, and the handrail is provided separately from the closed cable duct and the support members, the cable duct is provided separately from the support members, and the handrail is situated above the closed cable duct. The emergency lighting includes multiple lamps situated in succession, which are placed at the branching boxes and are supplied with power by same.

Abstract: A handrail installation with emergency lighting for tunnels, comprising a handrail, a closed cable duct, at least one flat cable that is installed along the closed cable duct, and multiple branching boxes for contacting the flat cable without stripping of insulation. The branching boxes contact the flat cable within the closed cable duct. The handrail and the cable duct rest on support surfaces, which are different from one another, on the top side of multiple support members, and the handrail is provided separately from the closed cable duct and the support members, the cable duct is provided separately from the support members, and the handrail is situated above the closed cable duct. The emergency lighting includes multiple lamps situated in succession, which are placed at the branching boxes and are supplied with power by same.