Ottotecnica
Distribution

SAFETY AND PROTECTION IN THE MANAGEMENT OF
ELECTRIC DISTRIBUTION LV-MV-HV

Earth and short circuit device for MV systems with bare conductors in primary substations MV/ HV, MV side suitable for strong short circuit currents

COMPOSITION:

n° 3 brass clamps with hexagonal threaded coupling
CH12, bayonet or DIN and tightening:
– ø 3÷50 mm on cylindrical conductors
– Thickness max 55×35 mm on flat bars
– Thickness max 35×60 mm on slanted bars
– Spherical fixed points ø 20/25 mm
n° 3 copper cables sec. 25/50/95 mm2 length = 1÷5 m covered with silicone sheath
n° 1 three-polar insulated connector
n° 1 earthing cable sec. 16/25/35 mm2 and length = 0÷2 m covered with silicone cable
n° 1 earthing brass clamp with screw tightening on thickness 0÷50 mm and/or spherical fixed points ø 20/25 mm
n° 1 telescopic insulating stick length = 1/1,5 m or in two/three elements 1,5 m long each, joinable with aluminum joint and stop ring
n° 1 metal box
n° 1 nylon bag with shoulder belt for the stick
Earth and short circuit device for MV systems with bare conductors in primary substations MV/ HV, MV side suitable for strong short circuit currents
Download technical sheet

In accordance to STD IEC 61230 
Ref./Conf.  STF RFI DPRIM STF IFS 020
Our Mod. CCCA D/B/E

Cable sec. mm2 Icc 0,25s Icc 0,5s Icc 1s
25 13,7 kA 8 kA 5,6 kA
50 22,5 kA 18 kA 12,7 kA
95 35 kA 25,2 kA