GB282291A - Improvements relating to supporting means for medium voltage electric cables - Google Patents

Abstract

282,291. Berg, F. June 7, 1927. Systems of supporting cables; posts, attachments for.-An attachment to masts for supporting electric cables comprises a vertical and laterally extending member carrying one cable above the mast and a cross-arm carrying a cable at each end, the vertical and cross members being connected together and to the mast. In the construction shown in Fig. 1, the vertical member b, of tubular form, is connected to the mast a by a clip d at its lower strut-shaped end b<1> and has a lateral arm b<2> from which an insulator h' is supported by the stirrup f<1>. The cross member c is in the form an angleiron frame embracing and bolted to the mast. The member b passes through the frame c and is secured thereto by a clip c<2>. In a modification, the part b<1> and clip d are omitted, and a strut obliquely connected to the members b, c and to the mast. Fig. 6 shows a construction in which the cross-arms k are formed of channel section bar bent into inverted U-shape embracing the top of the mast with the flanges inwards. The vertical member is formed of angular shape m, m<1> and is bolted to the member k and the mast. In a modification. one cross-arm and the vertical member are in one piece, the second cross-arm being provided with a vertical leg and cranked end bolted to the first above the end of the mast. Fig. 10 shows a further modification in which the vertical member m is inclined outwardly, and the separate cross-arm k' has an upward extension k<2> bent outwardly and inwardly. The upwardly extending parts in all forms may carry a lightning conductor. &c.