§ 14-16-79. Hoistway doors or gates for power passenger elevators.

A.

Automatic fire door. No automatic fire door shall lock any landing opening in the shaftway enclosure from the shaftway side nor any exit leading from any hoistway landing to the outside of the building.

B.

Landing opening. Landing openings in a required fire-resistant hoistway shall be protected by solid horizontally sliding, swinging or combination sliding and swing doors.

C.

Maximum clearance hoistway door to threshold. For automatic operation elevators the distance between the hoistway side of the hoistway door or gate and the edge of the landing threshold should be not more than two and one-half inches. The shaftway face of each shaftway door wherein the above measurement is exceeded shall be furred out to within one-half-inch of the edge of the landing threshold or provided with equivalent protection to prevent an adult or child from standing in the space between the closed hoistway door or gate and the elevator car door or gate. (See also section 14-16-96(E))

In a non-fire-resistant hoistway, the hoistway openings shall be protected by doors, as heretofore specified or by horizontally swinging gates which will reject a two inch ball.

Doors and gates shall guard the full width and height of the landing openings.

Exception: scissors or pantograph gates, which reject a three-inch ball when closed, may be used at basement landing openings nonfire-resistant hoistways.

D.

Hoistway doors over 100 feet per minute. Hoistway doors or gates for power passenger elevators operated in excess of 100 feet per minute shall be provided with door interlocks which conform to section 14-16-82. In addition, the hoistway doors of all hydraulic passenger elevators shall be provided with a door closer or the elevator shall be equipped with devices which will compensate for the creeping of the car away from the landing opening while the hoistway doors or gates are opened. Lever or wheel operated power elevators shall not be permitted to have mechanic interlocks for the hoistway doors or gates where the interlocks are of a type which may mechanically lock the operating device in the run position.

E.

Hoistway doors under 100 feet per minute. Hoistway doors or gates for power passenger elevators operated at 100 feet per minute or less shall have interlocks which conform with section 14-16-82, except that on such elevators existing contacts and mechanical locks which conform with section 14-16-83, may be continued in service until either their replacement or renewal is required or else the elevator is altered.

F.

Hoistway doors locked out of service. Hoistway doors or gates shall be arranged to be opened by hand from the shaftway side, except when locked out of service. Main exit and bottom terminal hoistway doors or gates shall not be locked out of service while the elevator is in operation.

G.

Manual or mechanical locks. Where hoistway door or gate interlocks on mechanical locks are:

1.

Manually unlocked, these locking devices shall be arranged to prevent the opening of the hoistway doors or gates from the landing side except as provided in section 14-16-89.

2.

Mechanically or electrically unlocked, the locking devices shall be arranged to prevent the opening of the hoistway doors or gates from the landing side unless the car is within the landing zone, except as provided in section 14-16-89.

H.

Power hoistway doors. Power closed hoistway doors or gates in elevators employing a type of operation which does not require an operation in the car shall be driven by a mechanism so designed and set that the force necessary to prevent the closing of the door or gate shall not exceed 30 pounds and further, that the hoistway door or gate, plus the car door or gate, plus all parts rigidly connected thereto, shall not develop a kinetic energy in excess of seven foot pounds, computed for the average closing speed or shall be provided with other suitable protecting measures.

I.

Hoistway door vision panels. Hoistway doors provided with vision panels shall have the openings protected with clear wire glass in cases where the hoistway is of fire-resistant construction, and in all other cases with either clear wire glass or may be protected by wire grille screens of not less than number 13 steel wire gauge or metal gratings of equivalent strength which are designed to reject a two-inch ball.

(Code 1967, § 49-129; Code 1985, § 46-149)