SAFETY AND PROTECTION IN THE MANAGEMENT OF THE RAILWAY TRACTION
RAYLWAYS| SUBWAYS| TRAMWAYS | TROLLEY-BUS
Subway earthing and short circuit device for lines and parts of plants at 1,5 kV dc for metropolitan use in the presence of preset handle fixed points
COMPOSITION:
No. 1 brass contact clamp with screw tightening. Tightening capacity on: – Cylindrical conductors ø 3÷50 mm. – Side flat bars up to 20 x 75 mm. – Bar conductors up to 55 x 35 mm. – Slanted bars up to 35 x 60 mm. thickness |
No. 1 copper extra-flexible cable, sec. 70 mm2, length = 7 m covered with transparent silicone |
No. 1 clamp for the connection to rails provided with dynamometrical closure |
No. 1 tubular stick in epoxy resin with glass-fiber. Made of two joinable parts through a simplex rapid joint with stop ring, total length 3,6 m. Provided with end cap and rubber hand guard. Cone shaped working head CH 22 and nylon bag for the housing and the transfer. |
No. 1 metal case for the housing and the transfer of the device and the stick. |

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In accordance to STD IEC 61230
Our Mod. CTO CTO 1,5kVcc METRO FIXED POINTS
Remark: the device is deliverable on demand with:
No.1 earthing self-milling brass clamp with tightening capacity up to 40 mm.
Sez. cavo mm2 | Icc 0,25s | Icc 0,5s | Icc 1s |
---|---|---|---|
50 | 22,5 kA | 18 kA | 12,7 kA |
70 | – | 26 kA | 18,6 kA |
95 | – | 35 kA | 25,2 kA |