EES: Earthing and Grounding Safety in Electrical Energetic Systems (ADK: D-5/922) – Presentation PDF on 130 + pages Assuring of safety conditions and protection against electrical shock during faults, transients and lightning strikes in surrounding of energetic buildings, substations, transmission lines, antenna towers, industrial buildings etc. Above 15 measuring methods for testing ground resistance, evaluating step, touch and contact voltages, field of potentials and many more.
EES – Presentation PDF: Earthing and Grounding Safety of Electrical Energetic Systems
15,75 €
Description
Practical Knowledge with Measuring Methods and Procedures
Inspections, Tests & Measurements
- Visual inspection
- Fault conditions and worst case situations for permissible touch voltage evaluation:
- Line to ground case situations on LV or MV side
- Lightning and switching maneuver situations
- Automatic tripout adjustment and short-circuit currents
- Continuity and equalization testing
- Earthing and grounding measuring methods:
- Earth resistance measurement 2/3/4 wire test method
- Voltage funel analzsing
- Ground potential rising measurement
- Step & contact voltage measurement
- Resistivity and specific earth resistance by Wenner / Schlumberger method
- Two clamps method for conductive loops measurement
- One clamp method with hi current for ground integrity
- dR 300A hi current for ground integrity and lightning system testing of power installations above 1 kV
- One clamp / four clamps testing of separate earthings of pylons & metal constructions & multileg groundings
- Sweep frequency and hi frequency 15 kHz / 25 kHz measuring methods
- Lightning strike pulse 10/350 simulation testing
Evaluation of Results
- Find the PASS / FAIL / LIMIT values
- Compare results to the limit
- Bring the decision
Acts and Inform Appropriately
- Report the results
- Mark the equipment accordingly
- Enabling of further use when PASS
- Rejecting the usage when FAIL
- Inform and transfer the responsibility
Troubleshooting and Maintenance
- Work close to energized objects
- Hi voltage presence checking
- Leakage current
- Earth bonding and main protection evaluation
- Find faults and potential dangerous
