Elevator Pit Depth: What EN 81-20 Requires and What to Do With a Shallow Pit
Pit depth is not a number the manufacturer picks. It follows from buffer stroke, the 0.50 m clearance under the car, the refuge volume a technician must fit into, and guide-rail overrun. This guide sets out what EN 81-20 requires, what changed from EN 81-1, and what to do when the building cannot give you the depth.
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