Fire doors are very important in our public places because it not only protects our safety but also effectively eliminates fire hazards. What is the classification of fire doors ? Today we will come together to learn about the classification of fire doors .
Fire door grade division 1, according to thermal insulation fire door classification
Class A fire doors: also known as insulated fire doors, can fully meet the requirements and fire insulation and refractories at the same time within the specified time, maintain integrity, fire rating 0.5 h (c), 1.0 (b), 1.5 h (a) and 2.0 h, 3.0 h.
Class B fire doors: Also known as part of insulated fire doors, fire-resisting insulation requires 0.5 h, fire integrity rating is 1.0 - 1.5 h, h, h, 2.0 to 3.0 hours.
Class C fire doors: also known as insulated fire doors, fire-resisting and heat-insulating are not required. Refractory materials only meet the requirements of fire-resistance integrity within the specified time. Honest fire-resistance rating is 1.0 - 1.5 h, h, h, 2.0 to 3.0 h.
Fire door rating 2 Fire door fire resistance time
Thermal Insulation Fire Door (Class A) Insulation Refractory Material Maintains Acuity 0.50 h Fire Integrity ≥ 0.50 hA0.50 (Class c) Insulating Refractory Material Maintains Acuity 1.00 h Fire Endurance ≥ 1.00 hA1.00 (B Class) Insulating Refractories Maintaining Aperture 1.50 h Refractory Integrity ≥ 1.50 hA 1.50 (Class A) Insulating Refractories Maintaining Acuity 2.00 h Fire-Resistance Integrity hA2.00 2.00 or later Insulating Refractories Maintaining Acuity 3.00 h Fire resistance integrity hA3.00 3.00 or later.
Insulation Fire Door (B) ≥ 0.50 h Refractory Insulation Refractories Material Integrity hB1.00 1.00 or greater Fire Resistant Integrity hB1.50 1.50 or greater Fire Resistant Integrity hB2.00 2.00 or greater Fire Resistant Integrity Sex hB3.00 3.00 or later.
Insulation fire doors (C) Fire resistance Integrity hC1.00 1.00 or higher Fire resistance Integrity hC1.50 1.50 or higher Fire resistance Integrity hC2.00 2.00 or higher Fire resistance Integrity hC3.00 or higher .
As for the classification of fire doors , I will introduce them to you. I hope to help you, and more information on the decoration is on this site. Please stay tuned.
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