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3.57special tooltool unique to the equipment required in order to keep the equipment in a safe operating condition or forrescue operations3.58stopping accuracyvertical distance between car sill and landing sill at the moment when a car is stopped by the control system atits destination floor and the doors reach their fully open position3.59traction liftlift whose lifting ropes are driven by friction in the grooves of the driving sheave of the machine3.60travelling cableflexible electric cable containing multiple cores between the car and a fixed point3.61type examination certificatedocument issued by an approved body carrying out a type-examination in which it certifies that the productexample under consideration complies with the provisions applicable to itNote 1 to entry: For the process of type examination and definition of approved body see EN 81-50.3.62unintended car movementnon-commanded movement of the car with doors open within the door zone away from the landing, excludingmovements resulting from loading/unloading operation3.63unlocking zonezone, extending above and below the landing level, in which the car floor has to be to enable thecorresponding landing door to be unlocked3.64userperson making use of the services of a lift installation which includes passengers, persons waiting at thelandings and authorized persons3.65wellspace in which the car, the counterweight or the balancing weight travels. This space is usually bounded bythe bottom of the pit, the walls and the ceiling of the well

5.2.1.9 Surfaces of walls, floors and ceilingsSurfaces of walls, floors and ceilings of wells, machine and pulley rooms shall be in durable material notfavouring the creation of dust e.g. concrete, brick or blockwork.The surface of the floor where a person needs to work or to move between working areas shall be of non-slipmaterial.NOTE 1 For guidance see EN ISO 14122-2, 4.2.4.6.The floor of working areas shall be approximately level, except for any buffer and guide rail bases and waterdrainage devices.After the building-in of guide rail fixings, buffers, any grids, etc., the pit shall be impervious to infiltration ofwater.For hydraulic lifts the space in which the power unit is situated and the pit shall be designed in such a way thatit is impervious, so that all the fluid contained in the machinery placed in these areas will be retained if it leaksout or escapes.NOTE 2 National regulations may require the protection of hydraulic pipe routed through the building.