CEN/TC 147/WG 12 - Tower cranes

This document specifies the requirements of anti-collision devices and systems installed on tower cranes (as defined in EN 14439) to avoid the risks of collision between several cranes in service, between a crane in use and fixed obstacles, and over prohibited zones.
It also specifies the requirements for working range limiting devices.
Anti-collision devices and systems and working range limiting devices according to this document are safety components.
It applies to anti-collision devices manufactured after the publication of this document.
NOTE   For anti-collision systems used to avoid the risk of collision with power lines, additional requirements might be necessary.
This document defines the safety characteristics and requirements of anti-collision devices and systems intended for installation on self-erecting tower cranes and tower cranes erected from parts.
In particular:
-   performance level;
-   information to be provided by the sensors installed on the crane;
-   operation, particularly in the event of failure, override and free jib slewing states of a crane;
-   type of communication between devices;
-   information for the crane operator and outside indicator.
It also specifies the requirements for marking the device or the system and the content of the instructions for use.
The significant hazards covered by this document are identified in Clause 4.
This document is not applicable to anti-collision devices and systems which are manufactured before the date of publication by CEN of this document.

This document specifies the safety characteristics and the requirements:
-   of anti-collision devices and systems intended for installation on self-erecting tower cranes and tower cranes erected from parts for construction work (as defined in EN 14439:2006+A2:2009) to avoid:
-   the risks of collision between several cranes;
-   the risks of collision between a crane in service and fixed obstacles; and
-   travelling over prohibited zones.
-   for working range limiting devices.
NOTE   Anti-collision devices and systems and working range limiting devices according to this document are safety components.
This document deals with all significant hazards, hazardous situations and events relevant to anti-collision devices and systems installed on tower cranes, when used as intended and under conditions foreseen by the manufacturer. This document specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards (see Clause 4).
This document is not applicable to anti-collision devices and systems which are manufactured before the date of publication by CEN of this document.

This document specifies safety requirements:
-   for tower cranes;
-   for climbing systems for tower cranes erected from parts.
This document applies to tower cranes for construction works, which are either erected by parts or self-erecting cranes, including mobile self-erecting tower cranes. Tower cranes for construction works are exclusively equipped with a hook as load-handling device.
This document is applicable to tower cranes to be operated outdoors at ambient temperature between
-20 °C and +40 °C.
This document is not applicable to tower cranes, which are permanently installed on a yard or integrated in a manufacturing process, resulting in a significantly different classification of the crane and its mechanisms, or which are equipped with a grab or when a sudden release of the load is intended, resulting in significantly different load actions and number of stress cycles.
This document is not applicable to mobile cranes, mobile harbour cranes, crawler cranes, slewing jib cranes, bridge and gantry cranes, offshore cranes, floating cranes, loader cranes, hand operated cranes or railway cranes.
This document deals with significant hazards, hazardous situations and events relevant to tower cranes, it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. This document specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards (see Annex A).
The significant hazards covered by this document are identified in Annex A.
This document covers hazards related to the lifting of persons using a climbing system for tower cranes as described in 3.6, 3.6.1 and 3.6.2. The lifting of persons by a tower crane itself is not included.
The requirements related to Electromagnetic compatibility (EMC), the specific hazards due to external influence on electrical equipment, potentially explosive atmospheres and ionising radiation are not covered by this document.
To improve readability, additional requirements for climbing systems are given in Annex E of this document. Additional requirements for mobile self-erecting tower cranes are given in Annex B of this document.
This document is not applicable to tower cranes and climbing systems which are manufactured before the date of publication by CEN of this document.

The main aspects that the proposed revision will cover are:
Introduction detailed guidelines for application of EN 13001-
Series: • modification of clause 5.2 • modification of Annex F
• addition of a new annex concerning wind calculation •
addition of a new annex concerning limit stress range

This document specifies safety requirements:
-   for tower cranes;
-   for climbing systems for tower cranes erected from parts.
This document applies to tower cranes for construction works, which are either erected by parts or self-erecting cranes, including mobile self-erecting tower cranes. Tower cranes for construction works are exclusively equipped with a hook as load-handling device.
Applications when the crane is equipped with a grab or when there is a sudden release of the load, are not covered by this document. This document is not applicable to mobile cranes, mobile harbour cranes, crawler cranes, slewing jib cranes, bridge and gantry cranes, offshore cranes, floating cranes, loader cranes, hand operated cranes or railway cranes.
This document deals with tower cranes to be operated at ambient temperature above -20° C.
This document deals with significant hazards, hazardous situations and events relevant to tower cranes, it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. This document specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards (see Annex A).
The significant hazards covered by this document are identified in Annex A.
This document covers hazards related to the lifting of persons using a climbing system for tower cranes as defined in clause 3.6, 3.7 and 3.8. The lifting of persons by the tower crane itself is not included.
The requirements related to Electromagnetic compatibility (EMC), the specific hazards due to external influence on electrical equipment, potentially explosive atmospheres and ionising radiation are not covered by this document.
To improve readability, additional requirements for climbing systems are given in Annex E of this document. Additional and specific requirements for mobile self-erecting tower cranes are given in Annex G of this document.
This document is not applicable to tower cranes and climbing systems which are manufactured before the date of publication by CEN of this document.