Lightning Flashcards
1
Q
3 effects of lightning strikes
A
Electrical - raised potential
Side flashing - risk of flashover
Thermal - rise of temperature in conductor
2
Q
5 factors when assessing a building for lightening protection
A
Number of average lighting strikes
Use of building
Type of material built with
Contents of building
Location of building
Surroundings
3
Q
What is a ring conductor
A
An earth termination fixed to the structure
4
Q
What is an earth termination
A
Parts of the system which discharge lightening into the earth
5
Q
What is a reference earth electrode
A
An electrode which can be isolated from the earth termination network for testing
