728x90 Safety/JSA_JHA (위험성평가)56 06. Cable Pulling, Installation and Banding Cable pulling works involve an individual pulling sheathed cables through walls, trays and ducts for electrical power systems. They will push, pull, and band these cables through given spaces, as well as joining them together. 케이블 풀링, 설치 공사는 혼자하기 어려운 작업입니다. 한팀을 이루어 작업을 진행하고, 풀링할 때에 구호를 넣어 구호에 맞춰 케이블을 끌어당기고 고정하기도 합니다. 케이블을 따라 근로자가 일 해야하기 때문에 작업조건이 좋지 않은 경우가 많습니다. 작업할 수 있는 공간확보를 하는 것이 무엇 보다도 중요하고 .. 2022. 12. 13. 05. Bolt Tightening and Torquing [General Information] Bolts may seem simple, but in reality the proper manufacturing of bolted joints requires careful study. Tightening the bolt puts the shank in tension, counteracted by compressive forces on the contact surfaces of the head and the nut, transferred from the parts. Inadequate preload is a common cause for bolted joint failure, which is why it’s so important to use the appropri.. 2022. 12. 11. 04. Backfilling Work ㅠㅁExcavation and backfilling of soil is a very important part of construction process, and care must be taken while excavation in safety perspective. Different soil layers may be encountered while excavation, dewatering may be needed sometimes. These points must be kept in mind to take necessary action during excavation and backfilling. 주유원이 굴삭기에 주유를 하고 주유호스를 정리하고 있었습니다. 굴삭기 운전원이 소변을 보고 돌아와서 주유가.. 2022. 12. 11. 03. Asphalt Works Asphalt paving works is a composite material commonly used to surface roads, parking lots, airports and other such places. It lays the asphalt flat and provides minor compaction before it is compacted by a roller. 아스팔트 공사하는 모습을 운전하시면서 종종 보셨을 거예요. 많은 건설장비가 투입되어 장비사고 위험이 높습니다. 사용 중인 도로라면 교통사고 위험은 더욱 높아지죠. 2019년에 아스팔트를 싣고 와서 트랙터에 쏟아주는 과정에서 덤프트럭이 전도되는 사고가 있었습니다. 다친 사람은 없었으나 덤프트럭은 주요 부붐 및 거더가 손상되는 사고.. 2022. 12. 11. 02. Air Flushing Air flushing provides an efficient method of removing debris from pipelines and newly constructed systems. In the gas process lines, the velocity should be the lowest figure between 60 m/s and the velocity obtained at 1.3 time the maximum process flow rate. The minimum velocity should be 30 m/s. In liquid process lines, a velocity between 30 m/s and 60 m/s should be used. Air Blowing 과 같이 청소을 목적.. 2022. 12. 11. 01. Air Blowing Test Air Blowing can be used as a safer, more environmentally friendly and cost effective alternative to conventional cleaning and steam blowing. The purpose of air blowing is to remove loose scale and debris prior to start up using compressed air as the cleaning medium. The velocity of a large air mass through the pipeline will pick up any debris or loose scale left in the pipe. This method will gua.. 2022. 12. 11. JSA (Job Safety Analysis) A Job Safety Analysis (JSA), also known as a Job Hazard Analysis(JHA), is to identify hazards before they occur. It is on the relationship between workers, tasks, equipment, devices and working environment. After you identify uncontrolled hazards, you should carry out four steps to eliminate or reduce it to an acceptable risk level 1. Select the job and review any existing documents 2. Identify .. 2022. 12. 11. 이전 1 ··· 5 6 7 8 다음 728x90
