AS 1735.15:2021 pdf free.Lifts, escalators and moving walks Part 15: Safety rules for the construction and installation of lifts – Special lifts for the transport of persons and goods一Vertical lifting platforms intended for use by persons with impaired mobility (EN 81- 41:2010, MOD).
5 Safety requirements andlor protective measures
5.1 General requirements for lifting platforms
5.1.1 General
Machinery shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed according to the principles of EN ISO 12100 (all parts) for hazards relevant but not significant, which are not dealt with in this document (e.g. sharp edges).
It shall be ensured that the dimensions specified in this standard are maintained, despite wear. Consideration shall also be given to the need for protection against the effects of corrosion. The transmission of noise and vibration to any surrounding walls and other supporting structures shall be minimised.
All materials shall be asbestos free.
5.1.2 Pattern of use
The mechanical design of the lifting platform shall take account of the frequency of usage to which It will be subjected.
NOTE See Assumptions – negotiahons.
5.1.3 Guarding
Components (for example gearing of the drive unit) shall be guarded to prevent the risk of personal injury. Access panels shall be secured by means requiring the use of a tool or key for their release. Their fixing systems shall remain attached to the guards or to the machinery when the guards are removed.
Guarding shall be designed and constructed in accordance with EN 953, EN ISO 13857 and EN 349.
5.1.4 Access for maintenance, repair and Inspection
5.1.4.1 WorkIng areas on the platform
5.1.4.1.1 General
Where machinery is to be maintained or inspected from the p’atform and if this work requires movement of the platform or is likely to result in uncontrolled and unexpected platform movement, the following applies.
5.1.4.1.2 Any kind of uncontrolled and unexpected movement of the platform resulting from maintenance/inspection that can be dangerous to persons carrying out maintenance/inspection work shall be prevented by a mechanical device. Such device shall ensure a minimum 300 mm clear space between the parts of the platform and rigid parts of the liftway where there is a risk of crushing. Monitoring of this device to ensure that the device is in the passive position before normal operation, shall be by means of an electrical safety device in accordance with 5.5.11.
5.1.4.1.3 Any necessary devices for emergency operation and for dynamic tests (such as brake tests, traction tests, safety gear tests) shall be arranged so that they can be operated from outside of the enclosed liftway.
5.1.4.2 Working areas under the platform
5.1.4.2.1 Where the lifting platform is to be maintained or inspected from underneath the platform the following applies:
a) If a clear space of 500 mm minimum is not available under the platform when at its lowest position, a manually positioned mechanical blocking device shall be provided to enable the platform to be held in a raised position and to create a free distance of at least 500 mm between the floor of the working area and the lowest parts of the platform. The device shall be able to stop the platform travelling downwards at rated speed with maximum working load.
b) The blocking device shall be in position before entering the pit and shall be provided with an electric safety device that detects the correct positioning of the mechanical blocking device and which will disable the car and landing controls and enable any inspection control station. The function shall be clearly marked with its intended purpose and position.
c) The opening of any door providing access to the pit shall be by use of a key, see 5.8.6, and prevent normal operation of the lifting platform; visible information shall be available if the blocking device is not in its active position. The return of the platform to normal service shall only be made by operation of a reset device placed outside of the liftway and accessible to authorised persons only.
d) Where it is necessary to move the platform from the pit, an inspection control station according to 5.5.18 shall be available foc use.
e) The floor of the pit shall be able to support the loads and forces (N) imposed to it and to support at any position the mass of 2 persons, each counting for 1 000 N without permanent deformation.
5.1 .4.2.2 When the platform is in the position according to 5.1.4.2.1 a), it shall be possible to leave the working area easily and safely.
5.1 .4.2.3 Any necessary devices for emergency operation and for dynamic tests, such as brake tests. traction tests, safety gear tests, shall be arranged so that they can be operated from outside of the enclosed liftway.AS 1735.15 pdf download.