What is required for use of an elevator during a fire alarm?
The contractor must locate a detector within 21 feet of each elevator door in the elevator bank under control of the elevator. … When a smoke detector in an elevator lobby or machine room-and the hoistway, if protected-actuates, it must indicate an alarm condition on the building fire alarm system.
Do elevators work during fire alarm?
All elevators should have fire service modes. The fire service mode can be automatically activated whenever smoke is detected in the building. It can also be activated manually using a key switch on the ground floor. When the fire service mode is activated, the elevator cab is designed to return to the ground floor.
How far does a smoke detector have to be from a sprinkler head?
After all, a sprinkler head is nothing more than a heat detector that allows water to flow. The listed spacing for heat detectors varies depending on the type of detector and its rated temperature, although the most common listed spacing is 50 feet between detectors.
What 3 items are in a fire safety plan?
This Fire Safety Plan must include:
- the measures to be taken to minimize the likelihood of fire at the site and to control the spread of fire;
- the emergency procedures to be followed in case of fire, including: activation of alarms, notification of the fire department, and.
What happens to an elevator when the fire alarm goes off?
Modern elevators are programmed to go to the first floor of a building if the fire alarm goes off. They will avoid the first floor if the elevator thinks there’s a fire on that floor. Firefighters can still enter the elevator if the fire alarm is still going off.
Why escalators have built in fire alarm system?
Fire detection systems within escalators need to be able to detect quickly and reliably, with minimum long term maintenance and crucially without causing unwanted alarms. Fire detection systems not only have to protect life, but also the building and infrastructure.
Why shouldn’t you use lifts in a fire?
Dangers of Using Lifts in a Fire
But during the later stages of a fire, this can get flipped on its head. … Fire damage to the lifts electrical supply can cause it to stop abruptly between floors – and if fire has breached the elevator shaft, anyone trapped in the lift is in danger of massive heat and smoke exposure.
Why can’t you take the elevator during a fire?
It isn’t appropriate to use an elevator during a fire or similar building emergency. Elevators are designed to be recalled to a floor, usually the lobby, during alarm conditions. … Also, smoke may enter the elevator shaft, which would migrate toward the roof, exposing any elevator occupants to that smoke.
Who can enter an elevator machine room?
Only authorized personnel are permitted in elevator machine rooms. Any personnel unlicensed who needs to access elevator machine rooms must be under the supervision of a trained elevator mechanic where guarding does not exist.