Review of Risk and Assessment of Safety for Powered Conveyor Systems

2017 ◽  
Author(s):  
Robert Kupkovits ◽  
Eugenia Kennedy ◽  
Jeffrey A. Kornuta
Keyword(s):  
Material Handling ◽  
Workplace Injury ◽  
Mechanical Motion ◽  
Safety Standard ◽  
Manual Material Handling ◽  
Operation And Maintenance ◽  
Injury Data ◽  
Industry Standards ◽  
Mechanical Handling ◽  
Design Construction

Conveyor systems are common mechanical handling equipment used throughout many industries to transport materials in various directions — horizontally, vertically, at an angle or around curves — and at various heights including floor-mounted and overhead systems. There are many types of conveyors including both powered and non-powered. Each type of conveyor presents its own unique sets of hazards. Although conveyors reduce injuries associated with manual material handling tasks, they can present a different set of hazards to those installing, operating or maintaining them. These hazards are typically associated with the powered mechanical motion of belts, shafts, sprockets, chains and various other subcomponents. Many industry standards are currently in use for conveyors, such as ASME B20.1, Safety Standard for Conveyors and Related Equipment. These industry standards address safe practices in the design, construction, installation, operation and maintenance of conveyor equipment. This paper will focus on identifying and defining the hazards associated with powered conveyor systems, reviewing workplace injury data for powered conveyors and comparing with data for nonpowered conveyors to better understand the trends, quantifying many of the risks associated with conveyors, and exploring and discussing the engineering and administrative controls currently available to address these hazards. A brief look at recent updates to some of the relevant standards will be presented to guide the discussion.

Assessment of Mobile Elevating Work Platforms Risks and Review of Changes Introduced in New Industry Standards to Address These Hazards

2020 ◽  
Author(s):  
Eugenia Kennedy ◽  
Mark Guttag ◽  
Thomas Bress
Keyword(s):  
National Standard ◽  
Power Lines ◽  
Training Requirements ◽  
Voluntary Standards ◽  
Operation And Maintenance ◽  
Injury Data ◽  
Industry Standards ◽  
New Industry ◽  
And Training ◽  
The U.S

Abstract Three new industry standards, American National Standard/Scaffold & Access Industry Association, Inc. (ANSI/SAIA) A92.20, A92.22 and A92.24, were introduced in December 2018 to address the safe design, use and training associated with mobile elevating work platforms (MEWPs). MEWPs are defined in the new Standards as “machine/device intended for moving persons, tools and material to working positions, consisting of at least a work platform with controls, an extending structure and a chassis.”2 This definition encompasses certain types and sizes of MEWPs such as scissor lifts, articulating boom lifts, telescopic boom lifts and straight mast boom lifts. Replacing product-specific industry standards, these three new Standards significantly change the design, testing, rental, use and training requirements associated with MEWPs. The Standards also offer greater clarity to the assigned responsibilities associated with these functions to various entities including manufacturer, dealer, owner, user, supervisors, operator, occupants, lessor, lessee and brokers. Compliance with these voluntary standards became effective June 1, 2020.3 Recognized hazards associated with MEWPs include: tip overs associated with wind loads and contact with other obstacles, contact with power lines leading to electrocutions, caught-between the lift and other objects, falls from platform and equipment collapse.4 This effort will analyze injury data including both fatal and nonfatal incidents associated with MEWPs to better understand the trends and quantifying many of the risks associated with the operation and maintenance of MEWPs. Injury data from the U.S. Bureau of Labor and Statistics (BLS) will be reviewed. The effort will also identify and explore how the design, use and training requirements introduced in the new industry standards address the hazards and risk associated with MEWPs.

scholarly journals HUBUNGAN BEBAN KERJA FISIK DENGAN KELUHAN MUSKULOSKELETAL PADA PERAWAT DI RUANG LELY 1 DAN 2 RSUD BULELENG

2020 ◽  
Vol 8 (4) ◽  
pp. 440
Author(s):  
Luh Dea Pratiwi ◽  
I Kadek Saputra ◽  
Meril Valentine Manangkot
Keyword(s):  
Material Handling ◽  
Pulse Method ◽  
Cross Sectional ◽  
Probability Sampling ◽  
Manual Material Handling ◽  
Body Map

Perawat merupakan profesi tenaga kesehatan terbanyak di rumah sakit yang harus menangani dan merawat pasien selama 24 jam dan melakukan asuhan keperawatan yang menerapkan tindakan manual material handling. Manual material handling berisiko menimbulkan beban kerja fisik yang ditandai dengan adanya nyeri di daerah otot yang disebut dengan keluhan muskuloskeletal. Tujuan penelitian ini adalah untuk mengetahui hubungan beban kerja fisik dengan keluhan muskuloskeletal pada perawat di ruang Lely 1 dan 2 RSUD Buleleng. Penelitian ini merupakan deskriptif korelasional dengan rancangan penelitian cross sectional. Sampel dalam penelitian ini berjumlah 25 responden yang dipilih dengan metode probability sampling yaitu total sampling. Instrumen penelitian yang digunakan dalam penelitian ini yaitu cardiovascular load dengan menggunakan ten pulse method dan Nordic Body Map. Hubungan beban kerja fisik dengan keluhan muskuloskeletal pada perawat dianalisis menggunakan Pearson Product Moment karena data berdistribusi normal. Hasil penelitian menunjukkan bahwa sebagian besar responden memiliki beban kerja fisik katagori sangat ringan (84%) dan keluhan muskuloskeletal kategori rendah (84%). Uji Pearson Product Moment menunjukkan adanya hasil yang signifikan dengan nilai p yaitu 0,000, r=0,806. Kesimpulan dalam penelitian ini yaitu ada hubungan yang positif antara beban kerja fisik dengan keluhan muskuloskeletal pada perawat di ruang Lely 1 dan 2 RSUD Buleleng. Berdasarkan hasil penelitian, disarankan untuk menerapkan sikap ergonomis sesuai prosedur dalam memberikan asuhan keperawatan.  

scholarly journals System Dynamics Model Application for Ergonomic Assessment of Manual Material Handling Tasks

2016 ◽  
Author(s):  
Hossein Abaeian ◽  
Osama Moselhi ◽  
Mohamad Al-Hussein
Keyword(s):  
System Dynamics ◽  
Material Handling ◽  
Dynamic Equilibrium ◽  
Project Managers ◽  
Dynamics Modeling ◽  
Work Related ◽  
Manual Material Handling ◽  
Compressive Loads ◽  
Levels Of Automation ◽  
Free Body

Despite increased levels of automation in manufacturing occupations in recent years, many activities are still performed through human intervention and involve Manual Material Handling (MMH), thus exposing workers to stress due to over-exertion and potential Work-Related Musculoskeletal Disorders (WRMSDs). An early ergonomic and physical demand assessment of work activities is critical to reducing exposure to risk and to maintaining desired levels of productivity. Biomechanics consists of applying concepts of static and dynamic equilibrium to different parts of the human musculoskeletal system using free-body diagrams to estimate muscle force and loads generated across the joints and tissues. System dynamics is a powerful tool applied in resolving complex problems with different influencing variables. This technique can help designers and managers to understand, evaluate and simulate the factors causing problems in the system. This paper presents the application of System Dynamics modeling to assess the biomechanical risks associated with manual material handling tasks. The case study presents predicted cumulative biomechanical compressive loads from material handling task and can assist project managers to understand and reduce exposure to ergonomic risks in the workplace.

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