728x90 JSA9 08. Electrical Installation Electrical installations consist as the connection system that has the mission to conduct and distribute the electric current, from the electric service to the last electrical installation outlet, in a edification or construction. Electrical installation describes the physical work involved in installing electrical systems into a building and a plant., etc as testing of electrical wiring and equ.. 2022. 12. 13. 07. Coring on Existing Drainage Sump. Constructing holes in precast concrete manhole sections for pipe connections can be achieved by several methods. Each requires careful consideration before making the investment in training and equipment. Whether you are building a new plant and trying to decide which production method to use or you have an existing plant and want to determine if your current method is the most efficient, it’s i.. 2022. 12. 13. 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. 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. 이전 1 2 다음 728x90
