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《Class 1》

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Definition

Residential buildings with the building height more than 54m (including the residential buildings with commercial service points)

Fire endurance

Incombustibility / 1.5 hours

For civil buildings with the building height more than 100m, the fire endurance of their floor slabs shall not be less than 2 hours.

《Class 2》

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Definition

Residential buildings with the building height more than 27m but not more than 54m (including the residential buildings with commercial service points)

Fire endurance

Incombustibility / 1.0 hour

From Code for Fire Protection Design of Buildings, GB50016-2014

《Class 1》

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Definition

1. Public buildings with the building height more than 50m;

2. Shop, exhibition, telecommunication, post, trade and finance buildings and other multi-functional combined buildings with any floor with the building area more than 1000m² in the part above 24m height of building;

3. Medical buildings and important public buildings;

4. Broadcasting & television and disaster prevention commanding and dispatching buildings at the provincial level or higher, and electric dispatching buildings at the network bureau or provincial level;

5. Libraries and stacks with a collection of more than 1,000,000 books.

Fire endurance

Incombustibility / 1.5 hours

For civil buildings with the building height more than 100m, the fire endurance of their floor slabs shall not be less than 2 hours.