Cranes - 295 entries found
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Ordinance No.20 of the Ministry of Labour [Japan]
Rōdō-shōrei dai-nijū-gō [in Japanese]
This Ordinance, made under the Industrial Safety and Health Law of Japan (CIS 92-352), makes it compulsory to report incidents involving wire breakage and crane collapse to the authorities.
Kampō, 30 Mar. 1994, No.58, p.27-34.
Load limiting devices on cranes [Sweden]
Överlastdon på kranar [in Swedish]
This amendment of regulation AFS 1980:19 (CIS 81-904) was adopted on 25 November 1993 and is an adaptation of EEC Directive 89/392/EEC (CIS 89-1442). It covers: modifications regarding its applicability.
Arbetarskyddsstyrelsen, Publikationsservice, Box 1300, 171 25 Solna, Sweden, 1993. 3p.
Gangways on tower cranes [Sweden]
Gångbanor på tornkranar [in Swedish]
This amendment of regulation AFS 1981:18 (CIS 82-13) was adopted on 25 November 1993 and is an adaptation of EEC Directive 89/392/EEC (CIS 89-1442). It covers: modifications regarding its applicability.
Arbetarskyddsstyrelsen, Publikationsservice, Box 1300, 171 25 Solna, Sweden, 1993. 3p.
Drivers' cabs on stationary cranes [Sweden]
Förarhytter till stationära kranar [in Swedish]
This amendment of regulation AFS 1981:17 (CIS 82-12) was adopted on 25 November 1993 and is an adaptation of EEC Directive 89/392/EEC (CIS 89-1442). It covers: modifications regarding its applicability.
Arbetarskyddsstyrelsen, Publikationsservice, Box 1300, 171 25 Solna, Sweden, 1993. 5p.
Electrical equipment for cranes [Sweden]
Elutrustning till kranar [in Swedish]
This amendment of regulation AFS 1980:18 (CIS 81-922) was adopted on 25 November 1993 and is an adaptation of EEC Directive 89/392/EEC (CIS 89-1442). It covers: modifications regarding its applicability.
Arbetarskyddsstyrelsen, Publikationsservice, Box 1300, 171 25 Solna, Sweden, 1993. 3p.
Noise from tower cranes [Sweden]
Buller från tornkranar [in Swedish]
This regulation was adopted on 21 September 1993 and is an adaptation of the EEC directives 84/534/EEC (CIS 95-1196), 87/405/EEC (CIS 87-1171), 84/532/EEC, 79/113/EEC (CIS 95-1193) and 81/1051/EEC (CIS 95-1194). It covers: application and definitions; conditions for release on the market; type approval; exposure limits for noise; declaration of conformity; marking; special provisions; advice for the implementation of the ordinance. In annexes 1 to 7: sample form for type approval; method for determination of noise from tower cranes; method for determination of noise exposure for the crane operator; sample form for certificate of noise level; sample form for declaration of conformity regarding noise; example of signs for indicating the noise level emitted by cranes.
Arbetarskyddsstyrelsen, Publikationsservice, Box 1300, 171 25 Solna, Sweden, 1993. 40p. Illus.
Safety in crane operations
Update version of the guide published in 1981 (see CIS 83-1204). Contents: the work of crane operators and procedures for operating cranes; safe operation of radio controlled cranes; procedures for crane repairers; procedures for the safety of persons working on cranes or from crane runways; hooking loads onto overhead cranes (slinging); which hitch for the job; care and inspection of fibre ropes, alloy steel chains, wire ropes and synthetic webbing slings; lifting accessories. Appendices cover lifting capacities for various ropes, chains and slings and relevant legislation.
Industrial Accident Prevention Association, 250 Yonge Street, 28th Floor, Toronto, Ontario M5B 2N4, Canada, 1993. iv, 50p. Illus.
International Labour Office (ILO)
Machine safety: Cranes
This training manual presents definitions of various types of lifting equipment and accessories, describes causes of accidents associated with their use and outlines safety requirements (safe design, initial testing, periodical examination, marking of safe working load, safe operation). Information on the size, strength and construction of wire ropes is provided along with guidance on the inspection of lifting accessories. The text of the Finnish standard SFS 4696 on safety requirements for cranes is included.
African Regional Labour Administration Centre (ARLAC), P.O. Box 6097, Harare, Zimbabwe, 1993. 25p. Illus. Also available on diskette (MS-DOS).
Crane accidents by contact with powerlines
Reports of electrocution accidents involving contact between machines and powerlines were analysed to determine the type of equipment involved, the occupation of the workers affected, the severity of the accident, the part of the machine which came into contact with the powerline and the voltage of the powerline. Based on this analysis, some specific factors have been recognised which have helped to describe some typical accidents for each of six categories of equipment. The study can be used to define a priority for the prevention of this type of accident, including consideration of the technology of the machines involved.
Safety Science, Apr. 1993, Vol.16, No.2, p.129-142. Illus. 9 ref.
Piette A., Malchaire J.
Technical characteristics of overhead cranes influencing the vibration exposure of the operators
This study was undertaken to determine the technical factors responsible for the generation of vibration and shocks in overhead cranes and therefore responsible for complaints by the workers. Vibration measurements were made on the floor and on the seat of the cabin on 21 cranes. Vibration levels were correlated with the characteristics of the cranes. The study showed that vibration accelerations increased with the span of the crane and were very dependent upon the state of the runway. The type of speed regulation and the position of the cabin also play a significant role. The suspension systems of the cabin and of the seat were clearly inadequate to give significant reduction of the vibration. In several cases, it was even shown to amplify the vibration in the most critical frequency range. These results should be taken into account by designers as well as maintenance services in order to prevent the development of vibration at the source.
Applied Ergonomics, Apr. 1992, Vol.23, No.2, p.121-127. Illus. 18 ref.
Types of risks in the operation of tower cranes
Risiko-Typen beim Betrieb von Turmdrehkranen [in German]
From accident records collected in the Federal Republic of Germany between 1980 and 1988 the types and causes of accidents in which tower cranes were involved were identified. Assembling and disassembling of tower cranes was found to lead most frequently to severe accidents. Failure of safety devices ranked second and breaking apart of the weight-carrying parts through faulty welding ranked third.
Hebezeuge und Fördermittel, Feb. 1992, Vol.32, No.2, p.58-63. Illus. 9 ref.
National Occupational Health and Safety Commission (Worksafe Australia)
National guidelines for occupational health and safety competency standards for the operation of loadshifting equipment and other types of specified equipment
These guidelines cover minimum occupational safety and health competencies required for safe use and operation of specified industrial equipment. They are designed to be incorporated into relevant industry competency standards and training programmes. Equipment covered: loadshifting equipment, specified cranes, concrete placing booms, refrigeration plant operation. Performance criteria are specified for various activities within each operation.
Australian Government Publishing Service, GPO Box 84, Canberra ACT 2601, Australia, Dec. 1992. viii, 58p.
http://www.ascc.gov.au/NR/rdonlyres/176E0EF6-CA11-4C81-A163-E6851ED155BA/0/Loadshifting.pdf [in English]
Piette A., Malchaire J.
Vibration exposure in overhead cranes
Exposition aux vibrations dans les ponts roulants [in French]
A study was undertaken in order to determine the technical characteristics of overhead cranes that may be responsible for the generation of vibration and shocks, and the most appropriate ways to reduce this exposure. It clearly demonstrates the importance of the crane track, and of the dimensions and suspension systems of the cabin and seat. The opinions of the workers concerning vibration and shocks were analysed, demonstrating that workers have difficulty discriminating between vibration and shock. The nuisance threshold appeared to be about 0.6m/s2. The prevalence of low-back pain was also compared between overhead crane operators and a control group formed of subjects adopting almost the same working postures but not exposed to vibration. This study did not reveal any increase in prevalence that could be attributed to whole-body exposure.
Cahiers de notes documentaires - Sécurité et hygiène du travail, 4th Quarter 1992, No.149, Note No.1898-149-92, p.497-504. Illus. 18 ref.
Piccinni S., Marchì T., Lorusso A., Magarotto G.
Spinal disorders among Venice port crane operators
Prevalenza di spondilopatie tra i gruisti del porto di Venezia [in Italian]
A group of 78 crane operators were examined using the "EPM Research Unit" method for assessing spine function. Crane operators work in a fixed posture characterised by a flexed position of the cervical spine, isometric load of the extensor cervical muscles and increased dorsal kyphosis. The prevalence of spinal disorders was 39.7% for the cervical tract, 37.2% for the dorsal tract and 38.5% for the lumbar region. The results were compared with those concerning a control group. A statistically significant difference was found in the number of cervical and dorsal complaints (OR=3.33 and 2.69), whereas the difference was nearly significant for the lumbar tract (OR=1.65). Results suggest that this category of workers may be subject to an increased risk for the spine.
Medicina del lavoro, Mar.-Apr. 1992, Vol.83, No.2, p.146-149. Illus. 7 ref.
Cranes (Suspended Personnel) Regulations 1992; Lifts and Cranes (Certification of Operators) Regulations 1992; Lifts and Cranes (Certification of Operators) (Exemption) Regulations 1992 [Australia - Victoria]
These regulations (made on 30 June 1992, effective 1 July 1992) were issued under the Victoria Lifts and Cranes Act 1967 (see CIS 92-1086). The 1972/1973 Regulations under the Act (also in CIS 92-1086) dealing with the safety of dogmen, the certification of operators and exemption from such certification are at the same time revoked.
In: Australian Industrial Safety, Health and Welfare, CCH Australia Ltd., CNR Talavera & Khartoum Roads, Box 230, North Ryde, NSW 2113, Australia, Vol.2, 20p. (pages numbered 61,331 - 61,404).
Craning and rigging handbook
Recommended for supervisors and workers directly engaged in rigging and craning, this handbook outlines safe procedures and practices. Topics covered: responsibilities of personnel; factor of safety; wire rope; chain; rope and chain fittings; slings; rigging and hoisting practices; rigging tools and devices; general craning considerations; road mobile, rough terrain and crawler cranes; travelling overhead bridge and gantry cranes; tower cranes.
Ontario Hydro, 700 University Avenue, Toronto, Ontario M5G 1X6, Canada, 1991. xii, 251p. Illus. Index
Cranes - Inspection and tests [Netherlands]
Hijskranen - Onderzoekingen en beproevingen [in Dutch]
According to legal provisions, cranes with a safe working load of 2t and above have to be examined and tested for reliabiity and safe operation. These tests have to be carried out by an expert, both before their initial use and periodically thereafter. This directive contains information about the testing procedures to be followed.
Labour Inspectorate, Directorate-General of Labour (Arbeidsinspectie, Directoraat-Generaal van de Arbeid), Postbus 90804, 2509 LV Den Haag, Netherlands, 5th ed., 1991. 27p.
Tower cranes - A manual of standard practices
Safe work practices in transporting, erecting, operating, dismantling and storing tower cranes are outlined. Types of equipment, inspections and maintenance of cranes are also discussed.
Workers' Compensation Board of British Columbia, 6951 Westminster Highway, Richmond, British Columbia V7C 1C6, Canada, 1991. 69p. Illus.
Technical note of 6 March 1991 on tower cranes operating in overlapping work zones - Specific installation safety measures [France]
Note technique du 6 mars 1991 sur les grues à tour à zones d'action interférentes - Mesures particulières de sécurité en cas d'installation [France] [in French]
This note provides technical details of anti-collision safety devices for use on sites where tower crane work zones overlap. It begins by listing the different equipment that may be used bearing in mind site organisation and lifting and handling plans. It also discusses the adaptation of safety devices to take care of unexpected alterations in the work programme. Finally, it recommends that cranes too old to be fitted with anti-collision safety devices only be used in exceptional circumstances.
Cahiers de notes documentaires - Sécurité et hygiène du travail, 3rd Quarter 1991, No.144, Note No.1846-144-91, p.531-533.
Mobile cranes - Determination of stability
Grues mobiles - Détermination de la stabilité [in French]
This International Standard specifies the conditions to be taken into consideration when verifying the stability of a mobile crane by calculation, assuming that the crane is operating on a firm and level surface (up to 1% gradient). It applies to mobile cranes as defined in ISO 4306-2, i.e. appliances mounted on wheels (tyres) or crawlers, with or without outriggers.
International Organization for Standardization, Case Postale 56, 1211 Genève 20, Switzerland, 2nd ed., 1991. 5p. Illus.
Lifting devices and lifting tools [Norway]
Løfteinnretninger og løfteredskap [in Norwegian]
Rules applied to devices used in connection with cranes. Main topics: General obligations, design, safety devices, electrical devices, hydraulic devices, information and warnings to be affixed to the equipment, mounting, tests, marking, monitoring, obligations on the operator and use of the lifting devices. The original 1974 directive (CIS 75-2) was amended to 1984.
Direktoratet for Arbeidstilsynet, Fr. Nansens vei 14, Postboks 8103 Dep, 0032 Oslo 1, Norway, 2nd ed., Aug. 1990. 27p. Illus. Index.
Cranes - Vocabulary - Part 1: General
Appareils de levage à charge suspendue - Vocabulaire - Partie 1: Généralités [in French]
This international standard establishes a vocabulary in English, French and Russian of the most commonly used terms in the field of cranes. Part 1 defines terms concerning the main types of crane, parameters, general concepts, component parts, limiting and indicating devices and lifted loads. Diagrams illustrate some of the definitions.
International Organization for Standardization, Case postale 56, 1211 Genève 20, Switzerland, 15 Mar. 1990. 53p. Illus.
Cranes - Wire ropes - Code of practice for examination and discard
Appareils de levage à charge suspendue - Câbles - Critères d'examen et de dépose [in French]
This international standard provides guidelines for examination of wire ropes in service on a crane and specifies discard criteria which are to be applied to ensure the efficient and safe use of the equipment. Contents: definitions; state of wire rope before fitting; fitting precautions; maintenance; frequency of and points to be covered by examination; discard criteria; operating performance; condition of equipment related to ropes. Annexes include a method for the internal examination of wire rope, and examples of defects that may occur in wire rope.
International Organization for Standardization, Case postale 56, 1211 Genève 20, Switzerland, 15 Aug. 1990. iv, 25p. Illus. 2 ref.
Mobile cranes and power lines
Contents of this data sheet: hazards of operation near power lines; applicable regulations; pre-operation safety measures; safety measures for operating near energised power lines; crane operation near radio, radar or television transmitting towers; devices for added protection; cause and effect of electrical shock; shock avoidance while crane is in contact with power line; operator training; arcing in air.
National Safety Council, 444 North Michigan Avenue, Chicago, IL 60611, USA, 1990. 6p. Illus. 12 ref.
Klimmer F., Kylian H., Linke G., Maxeiner B., Heinrich V., Merdian K., Rutenfranz J.
Workload and physiological response of crane operators caused by the ascent to the cabins of various types of tower cranes
Belastung und Beanspruchung des Kranführers beim Aufstieg zur Kranführerkabine verschiedener Turmdrehkrantypen [in German]
Workload and physiological response of 12 crane operators during their ascent to tower crane cabins at heights of 35.9m, 40.1m and 57.8m via vertical or inclined (74°) ladders were determined with the "Ergonomic Job Description Questionnaire". In addition, climbing speed, energy expenditure, lactate concentration in arterial blood and heart rate were measured. Lactate values revealed that the ascent on vertical ladders was more straining. Energy expenditure was correlated with climbing velocity, height and body mass.
Arbeitsmedizin - Sozialmedizin - Präventivmedizin, 1990, Vol.25, No.8, p.356-361. Illus. 19 ref.
Causes of fatal accidents in connection with transport by cranes
Ursachen tödlicher Unfälle beim Krantransport [in German]
Of 5711 fatal occupational accidents in Germany (Fed. Rep.) between 1979 and 1988, 6% (340) were associated with materials handling by cranes. Operators of overhead hoists without cabins were affected in 13.5% of the accidents, crane-followers in 65% and employees working in the operating range of cranes in 21.5% of the accidents. Overhead hoists were most often involved, followed by mobile cranes and truck-mounted cranes.
Sicherheitsingenieur, 1990, Vol.21, No.8, p.14-18. Illus. 2 ref.
Cranes - Training of drivers - Part 1: General
Appareils de levage à charge suspendue - Formation des conducteurs - Partie 1: Généralités [in French]
The international standard specifies the minimum training to be given to trainee drivers of cranes, to develop basic operational skills and to impart the prerequisite knowledge for the proper use of those skills. It defines the overall training scheme within which specific training should be given for each type of crane (i.e. tower cranes, mobile cranes).
International Organization for Standardization, Case postale 56, 1211 Genève 20, Switzerland, 1990. 4p.
Cranes - Crane driving manual - Part 1: General
Appareils de levage à charge suspendue - Manuel à l'usage des conducteurs - Partie 1: Généralités [in French]
This international standard gives guidance on the contents of a crane driving manual to be provided by the manufacturer.
International Organization for Standardization, Case postale 56, 1211 Genève 20, Switzerland, 1990. 3p.
Radical solutions are needed
Nužny radikal'nye rešenija [in Russian]
Editorial presenting fatal accident statistics for mining, metallurgy, petroleum and gas extraction, petroleum refining, the chemical and petrochemical industry and geological exploration, as well as for cranes and for equipment subject to the boiler and gas inspectorates in the USSR for 1988 and 1989. Although there were 89 fewer deaths in 1989 (1151 versus 1240 in 1988), the decrease is modest, and there was actually an increase in the petroleum and gas industry. The numbers are broken down by industrial sector and republic; total figures for the Russian, Ukrainian and Kazakh republics are broken down by district. The relation of these figures to the safety situation in general is discussed. Improvement requires action on 3 fronts: increasing the safety consciousness of the whole population; imposing serious fines on those who violate safety rules; establishment of a legal and regulatory system that clearly defines the rights and responsibilities of individuals, enterprises and authorities.
Bezopasnost' truda v promyšlennosti, Mar. 1990, No.3, p.2-6.
Overhead travelling cranes, portal and semi-portal cranes
Ponts roulants, portiques et semi-portiques. Mesures de prévention des accidents [in French]
These recommendations concern the prevention of accidents during the use of overhead travelling cranes and portal and semi-portal cranes. Potential hazards on the ground and at height are identified and guidance is given on safety measures: correct use of equipment and installation of safety devices, operational procedures, the personal protection of workers and regular inspection of the equipment.
Institut national de recherche et de sécurité, 30 rue Olivier-Noyer, 75680 Paris Cedex 14, France, 1989. 3p. Illus.
http://www.risquesprofessionnels.ameli.fr/atmp_media/R318.pdf [in French]
Cranes: inspection and tests [Netherlands]
Hijskranen: onderzoekingen en beproevingen [in Dutch]
Under article 141 of the Safety Decree for Factories and Workshops 1938 (V.B.F.), cranes with a safe working load of two tons and above have to be examined and tested for reliability and safe operation. These tests have to be carried out by an expert, before first use and periodically. This directive (revision of CIS 85-307) contains information about the safety rules required by law.
Labour Inspectorate, Directorate-General of Labour (Arbeidsinspectie, Directoraat-Generaal van de Arbeid), Postbus 69, 2270 MA Voorburg, Netherlands, 4th ed., 1989. 18p.
Overhead travelling cranes - Safety manual for supervisors, operators and maintenance workers
Ponts roulants - Manuel de sécurité à l'usage de la maîtrise, des pontiers et du personnel d'entretien [in French]
Aspects covered: general practical information (with particular attention to French regulations); knowledge of technical aspects of overhead travelling cranes; training and aptitude of operating and maintenance staff; safe operations; maintenance of lifting equipment; work in the vicinity of the cranes.
Institut national de recherche et de sécurité, 30 rue Olivier-Noyer, 75680 Paris Cedex 14, France, 1989. 79p. Illus.
Guide to safe use of mobile cranes
Contents of this safety guide: types of mobile cranes; having the proper crane for the job (including responsibilities, inspection, maintenance, routine checking, repair); using cranes correctly; problems in crane operation (multi-crane operations, pick and carry operations, operation on slopes).
Ministry of Labour, Nos. 3, 5 & 7 Halifax Road, Singapore 0922, Republic of Singapore, 1989. 19p. Illus.
Technical Committee on Mobile Cranes
Code of practice for safety devices, examination and test of mobile cranes for approved persons
Code of practice covering: general (scope, purpose, definitions); safety devices and attachments; visual examination (to detect significant defects of critical parts of cranes and associated safety devices); test requirements.
Ministry of Labour, Nos. 3, 5 & 7 Halifax Road, Singapore 0922, Republic of Singapore, 1989. 9p.
Hazards are numerous - safe operation of construction machines
Gefahren sind zahlreich - Kriterien für die Auswahl von Sicherheitsvorrichtungen an Baumaschinen [in German]
Accidents involving construction equipment such as cranes and circular saws are described. Relevant accident and noise prevention regulations effective in the Federal Republic of Germany are quoted and required safety devices are outlined. Necessary safe distances from overhead power lines are listed.
Maschinenmarkt, 1989, Vol.95, No.25, p.26-28, 30-31. Illus.
Locking of cranes to avoid damage by wind
Sicherung von Kranen gegen Abtreiben durch Wind [in German]
Locking devices for cranes at wind speeds of about and above 15m/s are described. They include brakes, catch hooks, eye bolts, rail pinch bars, self-locking levers, eccentric rollers and rail pinch bars which close by spring force and are opened electrohydraulically. The latter are considered the safest but most expensive locking devices.
Fördern und Heben, 1989, Vol.39, No.1, p.23-26. Illus.
Bureau of Labour Protection, Ministry of Labour
Standard for examination of the safety techniques for crane operators [China]
Qizhongji siji anquan jishu kaohe biaozhun [in Chinese]
This standard (effective 1 May 1987) specifies the methods for examining technical competence with respect to safety of crane operators, including operators of bridge, gantry, tower, crawler, loading and unloading cranes. It specifies the age, educational and physical criteria to be met by the operators; training, examination and licensing of operators; regular re-examination, content of theory test on safe techniques; and practical examination problems. Scoring tables for practical examinations are annexed. An appended commentary explains items in the standard and cites the high incidence of industrial accidents due to cranes and faults of crane operators.
In: Reference Collection of National Occupational Safety and Health Standards 1985-1986, China Standards Publishing Co., Beijing, China, Apr. 1988, p.452-463. Price: CNY 11.00 (whole volume).
Platforms for rescuing crane operators from cabins at a great height
Rettungsplattform zur Rettung von Kranführern aus hochliegenden Führerhäusern [in German]
The elevating platforms described are used for the rescuing of crane operators from their cabin at heights of e.g. 30 to 35m. They have room for three first-aid attendants, the patient and a medical doctor. They can accommodate a stretcher and first-aid equipment necessary for emergency treatment e.g. for a heart attack or injuries from accidents.
Die BG, May 1988, No.5, p.316-317. Illus.
Escape devices for cranes
Ėvakuacionnye ustrojstva dlja gruzopod"emnyh kranov [in Russian]
Illustrated description of 2 compact and effective means of escape for operators of cranes. One is a reel of steel tape or nylon strap attached to a hydraulic clutch. The clutch limits the rate at which the reel can unwind to 3m/s. The tape or strap has a ring at the free end for attachment of a safety belt or harness. It can lower persons over distances up to 35m. The other device consists of a double-walled fabric tube that descends from a hole in the floor of the operator's cabin or from another appropriate point on the crane. The outer tube is 360-420mm in width and is elastic in the radial direction but not longitudinally; the inner tube is 870-920mm wide and is not elastic in either dimension. The rate of descent of a person through the tube is controlled by friction between his clothing and the inner tube, and by the mechanical properties of the double-walled structure.
Bezopasnost' truda v promyšlennosti, June 1988, No.6, p.46-48. Illus.
Rescue from cranes - safety for the rescuers!
Rettung vom Kran - Sicherheit für den Retter! [in German]
A harness with lifelines and fall arresters as used in mountaineering is described and recommended for use in rescue work on tower cranes. The equipment provides better protection against falls than the present belt used by fire brigades in the Federal Republic of Germany for this purpose.
Brandschutz, 1988, Vol.42, No.3, p.134-136. Illus.
Qualifications of crane operators
Eignungsanforderungen an Kranführer [in German]
Crane operators must be at least 18 years old, must have good depth perception and hearing acuity and must be reliable. Training can be based on the VDI-guideline 2194 (Selecting and Training Crane Operators). Refresher training seminars are recommended.
Sicherheitsbeauftragter, 1988, Vol.23, No.5, p.10-11. Illus.
Cranes and lifting appliances - Selection of wire ropes - Part 2: Mobile cranes - Coefficient of utilization
Grues et appareils de levage - Choix des câbles - Partie 2: Grues mobiles - Coefficient d'utilisation [in French]
International standard establishing the minimum practical coefficient of utilisation for ropes and rotation-resistant ropes used on mobile cranes, for general, constant and heavy crane operating conditions.
International Organization for Standardization, Case postale 56, 1211 Genève 20, Switzerland, 15 June 1988. 2p. 3 ref.
Bongers P.M., Boshuizen H.C., Hulshof C.T.J., Koemeester A.P.
Back disorders in crane operators exposed to whole-body vibration
The incidence of permanent work disability due to whole-body vibration among 743 crane operators and 662 controls in the Netherlands was studied. There were more disabilities among crane operators with more than 5 years of exposure to vibrations than in the control group. With increasing years of exposure the risk ratio for disability due to intervertebral disc disorders increased. Regression analysis yielded a 1.5-fold rise in risk of disability for 10 years of vibration exposure.
International Archives of Occupational and Environmental Health, 1988, Vol.60, No.2, p.129-137. Illus. 28 ref.
Ministère chargé du travail
Tower crane installations with overlapping displacement zones. Special safety measures [France]
Installation des grues à tour à zones d'évolution interférentes - Mesures particulières de sécurité [France] [in French]
This circular of 9 July 1987 puts forward a number of recommendations for reducing hazards in tower crane installations with overlapping displacement zones: measures to take in different typical circumstances. Appendix 1 lays out the implementation procedure for each hazardous situation. Appendix 2 provides some definitions.
Cahiers de notes documentaires - Sécurité et hygiène du travail, 1st Quarter 1988, No.130, Note No.1668-130-88, p.123-125.
Tower cranes with overlapping displacement zones. Safety devices
Grues à tour à zones d'évolution interférentes - Dispositifs de sécurité [in French]
Tower cranes with overlapping displacement zones require safety devices capable of alerting the operator and if necessary acting on the controls. After a short description of different types of detection, this note reviews and describes the devices currently on the market or in the design stage. A table summarises the situation on 9 sites where such devices are used, and the results of a survey conducted among crane operators are given. The information gathered, the experience acquired and the technological advances in tower cranes and preventive devices should enable manufacturers, users and risk-prevention organisations to draw up draft specifications determining what targets must be achieved in view of the real difficulties on sites and the hazards specific to each installation.
Cahiers de notes documentaires - Sécurité et hygiène du travail, 1st Quarter 1988, No.130, Note No.1662-130-88, p.53-69. Illus. 12 ref.
Revolving tower cranes: Electrical safety and lightning protection
Elektroschutz und Blitzschutz bei Turmdrehkranen [in German]
This safety guide for revolving tower cranes deals with: choice of protective measures, protective earthing, grounding, fault current breaker, practical applications, further hazards, lightning protection.
Allgemeine Unfallversicherungsanstalt, Abteilung für Unfallverhütung und Berufskrankheitenbekämpfung, Adalbert-Stifter-Str. 65, 1200 Wien, Austria, 1987. 11p. Illus.
Auxiliary hydraulic cranes
Grues hydrauliques auxiliaires [in French]
Illustrated safety guide aimed at operators and maintenance personnel. Regulatory texts applicable in France are given and commented upon. Summary: description of the machinery; practical information; how to learn to use the machine; starting the working day off safely; safe working practices; advice on personal behavior; ending the working day; maintenance; safety checks and testing.
Institut national de recherche et de sécurité, 30, rue Olivier-Noyer, 75680 Paris Cedex 14, France, 1987. 79p. Illus.
Itigin A.M., Pivkina L.V., Prilepskih V.D., Cinker S.G.
Contactless travel-limiting device for cranes
Beskontaktnyj ograničitel' hoda krana [in Russian]
Description and block diagram of a travel-limiting device for portal cranes. Each of 2 cranes mounted on a single set of rails is equipped with a transmitter/receiver unit and a reflector. At the minimal distance between the cranes, the reflector on each is aligned with the transmitter/receiver unit on the other. This allows a beam of light from a photodiode in the transmitter to be reflected back to a detector in the receiver. The detector is connected via electronic circuitry to a relay that brings the crane to a halt when the detector picks up the reflected light.
Bezopasnost' truda v promyšlennosti, May 1987, No.5, p.37-38. Illus.
Lifting of persons by means of cranes [Sweden]
Personlyft med kranar [in Swedish]
Amendment of directive AFS 1983:5 (effective: 1 July 1987). It contains appeal procedures relating to the lifting of persons by cranes or other lifting equipment, except when used in emergency situations or in mines and quarries. Detailed commentaries are appended. (For more details about the original directive, see CIS 83-901).
LiberDistribution, 162 89 Stockholm, Sweden, 29 Jun. 1987. 4p.
Council Directive of 25 June 1987 amending Directive 84/534/CEC on the approximation of the laws of the Member States relating to the permissible sound level of tower cranes [CEC]
Directive du Conseil, du 25 juin 1987, modifiant la directive 84/534/CCE concernant le rapprochement des législations des Etats membres relatives au niveau de puissance acoustique admissible des grues à tour [CCE] [in French]
This directive lays down the permissible sound power level of airborne noise emitted into the environment and the permissible sound pressure level of airborne noise emitted at the operator's position for tower cranes used to perform work on industrial and building sites. The method of measuring airborne noise emitted by these cranes at the operator's position is appended.
Official Journal of the European Communities - Journal officiel des Communautés européennes, 8 Aug. 1987, Vol.30, No.L220, p.60-64. Illus.
Success through safe lifting
Survey of the safety aspects of the use of indoor cranes for lifting in manufacturing operations. Coverage: standards; alarms and indicators; flexible (modular) manufacturing of specialised cranes; testing and inspection.
Engineering, Jan. 1987, p.31-33. Illus.
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