What is fire engineering ?
Fire engineering is of course not just adding a fire hose reel and installing emergency exit signs. In fire protection engineering, the installation of emergency lighting system, fire alarm system, fire detection system, gas detection system, automatic sprinkler system, fire column and hose reel system, fire retardant paint, smoke door and fire damper is more common. For other more special premises that require stricter safety requirements, we might also provide services such as carbon dioxide systems and hazardous warehouse fire protection installations.
What is the function and importance of emergency lighting ?
1. In the event of a power failure, it can ensure that personnel quickly and safely evacuate the building.
2. Rescue workers can enter the building from the outside.
Emergency lighting must meet the requirements of relevant laws and regulations. It is the responsibility of each owner to implement.
Where should evacuation lights be installed?
Exits and passages that need to ensure the safe evacuation of personnel should be equipped with evacuation lighting. (Evacuation lighting is when the normal lighting fails due to power failure, in order to avoid accidents, when people need to be evacuated safely, the evacuation sign lights set at the exits and passages to indicate the location and direction of the exits and set to illuminate the evacuation passages. lighting.) The following civil buildings and places should be equipped with evacuation lighting:
1. Open evacuation stairwells; even if the stairwells with natural lighting are used, evacuation lighting is still required.
2. Places such as singing and dancing entertainment, screening and entertainment halls;
3. Offices and meeting places with a construction area of more than 400m2.
4. The shops on both sides of the pedestrian street should be equipped with evacuation lighting, light evacuation indication signs and fire emergency broadcasting systems.
5. Except for residential buildings with a building height of less than 27m, the following parts of civil buildings, workshops and Class C warehouses should be equipped with evacuation lighting:
1) Enclosed stairwells, smoke-proof stairwells and their front rooms, front rooms of fire elevators or shared front rooms, refuge walkways, and refuge floors (rooms);
2) Audience halls, exhibition halls, multi-functional halls, business halls, restaurants, studios and other places with a building area larger than 200m2;
3) Underground or semi-underground public activity places with a building area greater than 100m2;
4) Evacuation corridors in public buildings;
5) Production sites and evacuation corridors in densely populated workshops.
6. Evacuation lighting should be provided on both sides of the tunnel, on the pedestrian crossing and the pedestrian evacuation passage.
7. Fire evacuation passages should be equipped with evacuation lighting.
What are the layout requirements for evacuation lighting ?
1. Evacuation lighting fixtures should be set on the top of the exit, the upper part of the wall or the ceiling;
2. The power distribution line of the fire emergency evacuation lighting system should be protected by hot-dip galvanized metal pipes and laid in the non-combustible body.
3. Fire emergency (evacuation) lighting should be set on the wall or ceiling, and the evacuation lighting set on the ceiling should not be embedded. The selection, installation position and spacing of lamps shall meet the minimum ground level illumination; the minimum ground level illumination of evacuation walkways and stairwells shall be based on the corridor width that is 50% symmetrical to the center line; the ground level minimum illumination of evacuation walkways in large areas shall prevail , according to the center line symmetrical evacuation aisle width uniform to meet the range of 50% shall prevail.
4. The setting of evacuation lights should not affect normal traffic, and other signs that are easy to mix and block the evacuation lights should not be stored around them.
5. Evacuation lighting and evacuation indication signs should be set on both sides of the tunnel, pedestrian crossing passages and pedestrian evacuation passages, and the height should not be greater than 1.5m.
How should evacuation lighting be controlled ?
1. Evacuation lighting should be manually and automatically controlled in the fire control room. It is not allowed to directly turn on the evacuation lighting by cutting off the fire power supply.
2. The battery pack for fire emergency evacuation lighting shall not interrupt the charging power supply of the battery when it is not lit. The evacuation sign lights should be in the lit state at ordinary times, and the evacuation lights can work in the non-lit state.
3. When the emergency evacuation lighting adopts energy-saving self-extinguishing switch, measures should be taken to force the lighting during firefighting.
How to store and maintain fire extinguishers?
It should be placed in a conspicuous place, but should not hinder escape.
It should not be stored upside down or on its side.
Avoid storing in damp, near heat sources or in direct sunlight to prevent metal corrosion and plastic aging.
Check the fire extinguisher at least once a month to ensure that there is no metal corrosion, dents or damage, and that the safety needle has not been accidentally pulled out and the barometer needle is in the normal position (usually pointing to the green area is normal). Do not open the top cover for inspection by yourself.
Clean fire extinguishers regularly and inspect nozzles to make sure they are not obstructed.
Invert the dry powder fire extinguisher for about 10 minutes every six months to prevent the dry powder from solidifying.
Pay attention to the stated expiration date of the product and replace it when appropriate.
After use, the pressure in the fire extinguisher will drop, so it is not suitable to use it again. Therefore, after using it once, you should replace the fire extinguisher, or check with the supplier if they provide the service of filling the fire extinguishing agent, and do not try to refill the fire extinguishing agent by yourself.
Where should residential fire alarms be installed?
1.The bedroom is a place for people to rest and sleep, and it is also the place with the lowest alertness. Often a fire occurs when the user fails to extinguish the cigarette butts correctly or turns off high-power electrical appliances or misuses them (such as irons and electric heaters, etc.) ), the expansion of the fire may lead to the failure of the dormitory to respond in time. It is necessary to install a residential fire alarm in the bedroom.
2.The kitchen is a place where a lot of fire is used in the house, especially if the fire is left temporarily for cooking, but the fire source is not turned off, which often leads to fire. In order to remind the house members as soon as possible, it is necessary to install a house fire alarm in the kitchen.
3. Stairs and corridors are the main paths of smoke and fire in houses. In order to detect fires early, it is necessary to install residential fire alarms on stairs and corridors.