Worker signaling the presence of water in the oil sump of a 110 kV substation.
Set of drawings of the ES brand:
- Common data
- Installation of the zero electrode.
- Level sensor. General drawing.
- Connection diagram of the resistance control unit (BCS) and level sensor
- Overall installation dimensions of the resistance control unit (BCS).
- Specification of equipment, products and materials.

Format - DWG, compatible with AutoCAD 2004-2017, Compass, ZWCAD, nanoCAD, BricsCAD, etc.