No, it's not in the rules. Although there are corresponding explanations in various places, there are no clear regulations.

The setting of fire elevator shall meet the following requirements:

Fire elevators should be located in different fire zones.

The front room of the fire elevator room should be set by the external wall. The first floor should have an exit to the outside or a passage with a length not exceeding 30m.

The fire elevator shaft and machine room shall be separated from other adjacent elevator shafts and machine rooms by a partition wall with a fire resistance limit of not less than 2.00 h. When the door is opened on the partition wall, a Class A fire door shall be set.

Drainage facilities should be set at the bottom of the fire elevator.