AS 5236.1:2021 pdf free download.Cranes – Limiting and indicating devices Part 1: General (ISO 10245-1 :2008, MOD).
This part of ISO 10245 specifies general requirements for limiting and indicating devices for cranes that are applicable to loads and motions, performance and environment. These devices restrict operation and/or provide the operator or other persons with operational information.
The specific requirements for the various types of crane are given in the other parts of ISO 10245.
It is emphasized that the safe and reliable operation of limiters and indicators depends upon regular
inspection and maintenance.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4306-1, Cranes — Vocabulary — Part 1: General
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4306-1 and the following apply.
3.1 anti-collision device
device used to prevent cranes or parts of cranes from colliding with a fixed load-lifting attachment when they are manoeuvred simultaneously in the same space
Note 1 to entry: A working space limiter may perform the function of an anti-collision device in certain applications.
3.2 configuration
combination and position of structural members, counterweights, support or outrigger position, hook block reeving and similar items assembled, positioned and erected in accordance with manufacturers instructions and ready for operation
3.3 continuous warning
warning visually by means of either a flashing or uninterrupted light, or audibly by either a pulsing or uninterrupted sound, that persists throughout the time during which the condition being indicated exists
4 Safety requirements and/or measures
4.1 Limiters and indicators
4.1.1 The crane manufacturer shall select a device having a specification that is compatible with the designed use of the crane, taking the following into account:
a) the operating environment, e.g. relative humidity, freezing, condensation;
b) the rated capacity;
c) crane characteristics;
d) electromagnetic compatibility.
4.1.2 The installation of limiters and indicators shall be carried out in a manner that does not reduce the required strength of the crane.
4.1.3 The effects (e.g. forces, stopping distances) resulting from the operation of the limiter shall be within the design constraints of the crane.
4.1.4 Systems shall enable periodic functional checks to be carried out to verif’ that indicators are operating correctly.
4.1.5 If interruption of the power occurs, the setting of limiters and indicators shall be retained.
4.1.6 Devices shall be capable of withstanding the shock loads and vibrations transmitted to them during normal usage, erection, rope changing, dismantling and maintenance of the crane.
4.1.7 Painting or other corrosion protection shall not affect the correct functioning of limiters and indicators.
4.2 General requirements for rated capacity limiters and indicators
4.2.1 Rated capacity limiters and indicators shall be provided on all cranes having a rated capacity of 3 t and above. It is, however, recommended for cranes of I t and above, or an overturning moment of 40 000m and above.AS 5236.1 pdf download.
Tags: Cranes
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