During gas accident
Detection of gas leaks
The basic rules for detecting gas leaks are:
- if possible, close the gas supply
- ventilate the rooms by opening windows and doors
- do not use open flames or electricity in the room
- move away from a dangerous area
- inform others and the alarm center about the danger
- if possible switch off the electricity from a dangerous area
Closing the gas supply
The closing of the gas supply depends on where the leakage is. If the leak is caused by a gas tap that of the stove was left open; then the situation is the easiest.
When the fire of the gas stove shuts off, immediately close all gas taps. If, however, the pipeline is damaged, then it is necessary to close the valve from which the gas enters this pipeline.
In the case of gas cylinders, it is clear that if gas leaks from somewhere, then the cylinder must be closed quickly. If the flaw is in the cylinder, then the company from which the cylinder has been purchased must be immediately be summoned, or the alarm center should be notified of the danger.
Ventilation of rooms
It is urgent to ventilate the rooms to prevent an explosive gas mixture emerging there. Open windows and doors help reduce damage if an explosion still occurs. Ventilation should be carried out for at least 30 minutes in order for the danger to pass safely. This should ensure air purity if there is no further inflow of gas.
Sparks and electricity
Any ignition source - open flame, electric spark, etc. - can ignite the gas in the room and cause an explosion depending on the gas concentration. In order to prevent the generation of an electric spark, you must not switch on any electrical device or disconnect it from the wall after detecting the hazard.
It is known that each switching generates small sparks in this location. Even if there is a fire in the gas-filled room, it is safer to leave it lit, not to make a switch that can cause a spark. The most common occurrence of such situations is in the kitchen because gas stoves are located there. Electrically, the refrigerator is a very dangerous device because it automatically switches the compressor on and off after certain time intervals. It also creates a dangerous spark. Therefore, it is the safest to switch off the electricity in the entire hazard area, which may include a flat, a house, etc.
ATTENTION! Switching off the electricity can only be done in a place where there is no gas odor, such as a staircase, another room.
Move away from a dangerous area
Other people in the vicinity of the area should be immediately informed about the danger and should be removed from the danger area. As soon as possible, you must inform the alarm center on the emergency number 112.
Staircase and basement
If the gas smell is in the stairwell of the dwelling, windows of the staircase and the front door must be opened for the purposes of ventilation if possible. If the gas enters the stairwell from the basement, then under no circumstances should the basement be ventilated through the staircase (danger to the inhabitants).
It is forbidden to go to the basement!
Open the basement front door and exit the danger area.
If the gas concentration is not reduced in rooms with closing off gas and ventilation of rooms, evacuation of people from the house begins. Everyone should be informed that using open flames, smoking and switching the electrical equipment on and off is prohibited.
If the leak is not detected or it is time-consuming to liquidate it, then the specialists will close the gas pipeline throughout the house. The gas smell can also enter the basement from the underground damaged gas pipeline.
A gas leak outside of the building
If the gas smell is detected outside the buildings, it can come from an underground gas leak where buildings located 50 m from the leak site are in danger. Gas penetrates then through the cellars.
All measures must be taken (stopping traffic, evacuating people, and ventilating rooms) to prevent explosions, suffocations, and other accidents. Gas from a damaged pipe gas is absorbed into the soil and rises to the dense coating of the street or road.
In winter, the gas rises to the frozen soil layer, and sometimes it can spread along the sand interlayer under the pavement.
If the gas smell is felt in several apartments in the houses of the districts, this suggests a real danger that the low gas pressure in this district has exceeded the permissible limit. The rise in gas pressure could have caused the consumers' gas meters to break and leak into pipelines or equipment. Everyone should be advised to close the taps before appliances and meters, ventilate the rooms and wait for the experts to arrive.
Inform the alarm center
When informing the alarm center, you must provide the following information when answering questions:
- explain what happened (the general nature and expression of the accident - the smell, visible injuries, fire, etc.)
- the location of the accident or the place where the gas smell was discovered (whether the place of accident is in the room, in the stairwell, in the basement, outside the buildings?)
- taps close to the emergency site, where it is possible to close the pipeline leading to the leak (is the gas supply closed?)
- electrical equipment connected to the mains in the room (is electricity in the room switched on?)
- open fire nearby (candles, fireplace, oven, etc.)
- accident detection time
- people at risk, nearby buildings or other objects
- your name and contact details