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Electric self-closing fire-resistant windows are a type of movable fire-resistant window. In addition to the conventional manual opening and closing function, they incorporate an automatic opening and closing device controlled by electrical signals (such as motor drive or electromagnet). In the event of a fire, it can receive linkage commands from the fire protection system to automatically close and has the function of feeding back the closing status signal to the fire control room.
In daily life, many people believe that fire-resistant windows must be completely sealed and immovable, or only manually operated, requiring manual intervention in critical moments. However, in today's building fire protection scenarios, both of these traditional fire-resistant window types have significant shortcomings. Fixed windows offer no ventilation, making them inconvenient for daily use; ordinary manual fire-resistant windows can be opened for ventilation, but in the event of a sudden fire, there is no time to manually close them, leaving a significant fire safety vulnerability. The emergence of electric self-closing fire-resistant windows perfectly solves this contradiction and is a particularly popular intelligent fire-resistant model in high-rise buildings and commercial projects. It overcomes the shortcomings of traditional fire-resistant windows that are "only fireproof and not practical," perfectly combining daily ventilation and emergency fire protection.
Compared to fixed fire-resistant windows with zero ventilation and ordinary temperature-controlled windows with a single trigger mode, the biggest advantage of electric self-closing fire-resistant windows is their intelligence and user-friendliness. They are no longer simply passive fire-resistant components, but intelligent safety devices that can actively link with fire protection systems and adapt to daily building use. With the trend of modern building fire protection upgrades, this type of fire-resistant window, which combines compliance, safety, and practicality, is gradually becoming the first choice for various new construction and renovation projects.
Electrical Wiring Mandatory Standards
To ensure that wiring is not burned and causes system paralysis in a fire, the wiring of electric fire-resistant windows has strict mandatory requirements:
Cable Selection
Fire-fighting linkage control circuits must use flame-retardant copper core wires with a core cross-sectional area of not less than 1.5mm²; power supply circuits must use fire-resistant copper core wires with a core cross-sectional area of not less than 2.5mm².
Laying Method
All wiring must be protected by metal conduits. When concealed, it must be installed within a non-combustible structure, and the protective layer thickness must be not less than 30mm; exposed wiring must take additional fire protection measures.
Independent Installation
Fire alarm control circuits must be installed separately and are strictly prohibited from sharing conduits with lighting, air conditioning, or other non-fire alarm control circuits.
Installation and Commissioning Points
Mechanical Installation
Window frames must be installed horizontally and vertically, with deviations in both verticality and horizontality controlled within ≤2mm/m. Electric window openers must be securely installed and reliably connected to the window sash, ensuring smooth and unobstructed opening and closing.
Thermostat Location
The temperature sensor release device must be installed above the window sash, with the sensing element facing inwards and free from any obstructions to ensure accurate temperature sensing.
Interlock Testing
After installation, three tests must be performed: manual opening and closing test, automatic temperature-sensing shutdown test, and automatic fire alarm control shutdown test to ensure all functions operate normally.
In terms of price, it is definitely more expensive than fixed windows and manual window closers. The higher price comes from the electronic components and commissioning costs. However, for commercial complexes or office buildings that require both ventilation and lighting while meeting fire safety standards, this is almost the only option.
This Electric Self-Closing Fire-Resistant Window acts as a "smart firewall" for buildings. Normally, it allows ventilation, but once the fire alarm system (FAS) is triggered, the built-in electric actuator forcibly closes and locks the window within seconds. It also has a backup battery, so it can close even during a power outage in a fire. It's a Class A insulated type, typically meeting EI 60 (Class B) or EI 90 (Class A) standards. It uses thick composite fire-resistant glass and a steel frame, not only blocking open flames but also keeping the temperature of the unexposed side within safe limits to prevent burns. Integration with the fire alarm control panel is standard, allowing all windows in the building to close logically by area.
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