Abstract: A grounding arrangement for a protector includes an arrester device having two conducting points for connecting to inlet prongs and a grounding point having a protruding rod for connecting to a grounding prong, an arrester holder for receiving the arrester device and having two longitudinal extension portions for connecting with the two conducting points, and a tin bit provided for electrically connecting the holder and the grounding point of the arrester device and isolating the holder and two conducting point of the arrester device.

Abstract: A frame which is configured by means of a number of extrusions, a number of links, a number of bolts, a number of nuts and a number of nut positioners. Each link defines a number of holes. Each extrusion defines at least one longitudinal channel being cruciform as shown in a cross-sectional view taken on a plane intersecting the extrusion. Each nut positioner defines a recess so that the nuts are kept from rotating in the recess and a profile so that it can be positioned at any desired point in the channels. A number of bolts are inserted through the holes formed in each link and further secured in the nuts retained in the channels formed in a number of extrusions. Each link can be attached to a number of extrusions. Thus, a frame can be configured by means of a number of extrusions.