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DEHN – Information
2. Abbreviations
2.1 Materials 2.2 Coating materials
Abbreviation Material Abbreviation Coating material
Al Aluminium gal Sn Tin-plated
AlMgSi Aluminium alloy gal Zn Galvanised
Cu Electric copper, copper tZn Hot-dip galvanised
Ms Brass Bronze gal Sn Bronze, tin-plated
StSt Stainless steel
St Steel 2.3 Types of conductors
MCI Malleable cast iron
ZDC Zinc die casting Abbreviation Type of conductor
GRP Glass-fibre reinforced plastic Fl Flat conductor
PP Polypropylene Rd Round conductor
3. Minimum lengths of insulating elements for 4. Explanation of symbols
1) Operating sticks acc. to DIN VDE 0681
2) Voltage detectors acc. to IEC/EN 61243-1 (DIN VDE 0682-411) Symbol Application
3) Phase comparators acc. to IEC/EN 61481 (DIN VDE 0682-431)
Installation instructions, see www.dehn-international.com
Nominal Rated Minimum length of the insulating
voltage voltage element L I min
UN *) Ur 1) 2) 3) Not for use in wet weather conditions
For indoor and outdoor installations
up to 10 kV 12 kV 500 mm 520 mm 525 mm
For use in indoor and outdoor installations, but not in wet weather
20 kV 24 kV 500 mm 520 mm 525 mm conditions.
30 kV 36 kV 525 mm 520 mm 525 mm For use in wet weather conditions
45 kV 52 kV 720 mm 830 mm — For indoor and outdoor installations
60 kV 72.5 kV 900 mm 830 mm — For use in indoor and outdoor installations, in all weather conditions
(even if the operating stick gets wet).
110 kV 123 kV 1300 mm 1300 mm —
150 kV 170 kV 1750 mm 1700 mm —
For indoor installations only!
220 kV 245 kV 2400 mm 2300 mm —
380 kV 420 kV 3200 mm 3600 mm —
*) For nominal voltages higher or lower than the nominal voltage indicated in the table
above, a rated voltage closest to the required nominal voltage must be selected. Switchgear installations
In extreme cases, the nominal voltage is equal to the rated voltage.
Overhead lines
Components for railway applications
+ New products
Discontinued products
see www.dehn-international.com
EaS Configurator:
www.dehn.de/en/euk Products / Selection guides and confi gurators /
EaS configurator
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