Electricity 769 Flashcards
What are 5 electricity company premises we may deal with
Power stations Sub stations Distribution cables/equipment Fenced enclosures Wind turbines
What length of fire resistance will the walls of a sub station located within a building have
4 hours
What hazards are associated with electric incidents
Electric shock Fire Explosion Hazardous gases or liquids Trip hazards Insulating materials producing toxic smoke
What must IC’s consider when isolating power supplies in premises
Where there are machine processes
It will effect occupants safety or welfare
There may be an adverse effect on business continuity
What distance should ground and aerial appliance monitors be used
30mtrs
What distance should ladders and aerial equipment be used from overhead power lines
10 mtrs
What is the safety cordon diameters for a fire in a wind turbine
300mtrs
What voltage can the LFB electrical gloves be used
3300V or less
What voltage determines high voltage
Greater than 1000v AC 1500v DC
What is a UPS
Uninterrupted power supply
