The low-cost,

2013 Code compliant solution

for car door interlocking.

ASME A17.1-2013/CSA B44-13

2.14.5.7    Restricted Opening of Car Doors.

2.14.5.7.1    

Car doors of passenger elevators shall be provided with a car door interlock conforming to 2.14.4.2 or 2.14.5.7.1 through 2.14.5.7.5

When a car is outside the unlocking zone, the car doors shall be so arranged that when in the closed position they shall be restricted from opening more than 100 mm (4 in.) from inside the car.

2.14.4.2.4    

Car door interlocks shall

a) prevent operation of the driving machine when the car door is not in the closed and locked position, except

   (1) when the car is within the unlocking zone for that entrance

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