Incidents involving Electricity Flashcards
How long is fire resistance in a transformer wall and floor in a sub station?
4 hours
PPE for Sulphur Hexaflouride (SF6)?
BA and full fire kit.
What are the two main ‘must do’s’ at a wind turbine prior to commencing tasks?
Confirm power isolated and blades locked out with responsible person.
When requesting attendance of representative from company what info should be included in message?
Specific identification or unique marking plates from pylons and buildings
Ground and Aerial appliance monitors should NOT be used within what distance of a live conductor?
30 meters
Ladders or Aerial appliances should be what minimum distance from overhead power lines?
10 meters
What distance is a recommended ‘starting’ cordon for wind turbines?
300 meters
What equipment could be used if voltage is confirmed 3300V or less?
LFB electrical gloves
What voltage is ‘High Voltage’ defined as?
Greater than 1000V AC (1500V DC).
What voltage is ‘Low Voltage’ defined as?
Less than 1000V AC (1500V DC).
What is the voltage limit for LFB Electrical gloves?
3300V.
What is the safe approach distance for a rescue near overhead lines, substations or electrical equipment?
5 meters.
Using ladders/aerial appliances near overhead lines/substations what is minimum safe approach distance?
10 meters or 20 meters if training.
What is safe approach distance to electrical equipment in dense smoke or flames?
10 meter corridor.
What is safe distance using handheld jets near electrical equipment?
20 meter corridor.
