2022-12-07 16:38:40
RunTayElectromechanical installation engineeringThe company explains the measures that can be improved during the installation process of electromechanical equipment:
See GB50193-93 (2010 edition) 3.1.2.2, 3.1.2.4, 7.0.5, 5.1.7.4. Different extinguishing agents are used depending on the type of fire. When spraying the extinguishing agent, the gas extinguishing agent evaporates rapidly, achieving the purpose of extinguishing the fire. When spraying gas extinguishing agents, the protected area should be completely sealed. After the fire was extinguished, the gas remained within the protected area. When people enter the reserve, their lives are at risk. Therefore, harmful gases should be discharged outdoors before entering the protected area. Ventilation can be described as natural or mechanical ventilation.
There is no natural ventilation in the basement (no external windows) protection zone, and no windows or fixed window sashes in the above-ground protection zone. Mechanical and electrical equipment installation should include mechanical exhaust systems. The exhaust volume should ensure that the protected area is ventilated more than four times per hour, and the exhaust outlet should be set within 460mm above the ground.
2. Set the local boot switch in a convenient location outside the protected area.
3. Before spraying gas extinguishing agent, the fan, air outlet, and fire valve should be automatically closed.
4. Mechanical exhaust devices should be installed between basement storage boxes (no exterior windows), and exhaust outlets should lead directly outdoors.
5. Set up a pressure relief port within the protected area, with the area of the pressure relief port calculated based on the extinguisher's spray speed.
Common issues during electromechanical equipment installation include:
Rooms using gas fire suppression systems produce toxic and harmful gases after the fire is extinguished.
1. No mechanical exhaust system in the basement (no external windows) protection zone; no windows or fixed window sashes or between gas cylinders in above-ground protection zones.
2. An exhaust system is installed, but the local start switch is not set in a convenient location outside the protected area.
3. If there are no valves in ventilation or air conditioning pipelines that can be electrically closed, they can be closed before spraying the extinguishing agent.
4. The pressure relief port is not set within the protected area as required.
Before installing electromechanical equipment, make thorough preparations before construction. After entering the site, arrange materials neatly.
During material handling, care must be taken not to damage the materials, ensure personnel safety, and take protective measures such as helmets, gloves, and protective shoes; After material handling, engineers provide on-site guidance and arrange the construction sequence for the workers. In the construction of electromechanical equipment installation projects, the construction sequence is a crucial factor determining project quality and efficiency.
