Basic Electrical Awareness Flashcards
1
Q
What is step potential?
A
When feet are placed on different voltage rings, the electricity equal to the difference between the rings will flow through the body.
2
Q
What is the safe approach distance for distribution powerlines?
A
8 metres.
3
Q
What is the safe approach distance for transmission powerlines?
A
20 metres.
4
Q
What are the limitations of the Modiewark voltage AC voltage detector?
A
Can give false positive if knocked or rubbed against cloth.
Does not detect:
- Direct Current (DC).
- AC wiring that is shielded.
- Step potential
