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C&G Unit 305: Electrical systems design
Published in Trevor Linsley, Advanced Electrical Installation Work, 2019
Cable tray is a sheet-steel channel with multiple holes. The most common finish is hot-dipped galvanized but PVC-coated tray is also available. It is used extensively on large industrial and commercial installations for supporting MI and SWA cables which are laid on the cable tray and secured with cable ties through the tray holes.
and technology
Published in Trevor Linsley, Electrical Installation Work Level 2, 2019
Cable tray is a sheet-steel channel with multiple holes. The most common finish is hot-dipped galvanized but PVC-coated tray is also available. It is used extensively on large industrial and commercial installations for supporting Ml and SWA cables which are laid on the cable tray and secured with cable ties through the tray holes.
C&G Unit 203: Electrical installations technology and renewable energy systems
Published in Trevor Linsley, Basic Electrical Installation Work, 2018
Cable tray is a sheet-steel channel with multiple holes. The most common finish is hot-dipped galvanized but PVC-coated tray is also available. It is used extensively on large industrial and commercial installations for supporting MI and SWA cables which are laid on the cable tray and secured with cable ties through the tray holes.
Decision-making for cable routing at detailed ship design through life cycle and cost assessment
Published in Journal of International Maritime Safety, Environmental Affairs, and Shipping, 2020
Muki Park, Byongug Jeong, Mingyu Kim
This study contains the four types of production parts; cable pipe, cable tray, angle support, and cable. In terms of cable pipe, cable tray, and angle support, they are generally manufactured by processing and welding the steel plates, which made from carbon steel. In the study, cable pipe or cable tray and angle support were modeled separately, because the factory that produces cable pipe and tray may differ from the factory-making angle supports. In addition, this model included the transport phase for the delivery of products between factories. All transportation distances were assumed 100 km. The copper was considered the main material used in the production of cables. (2)Installation part
A simulation-based method for effective workface planning of industrial construction projects
Published in Construction Management and Economics, 2018
Di Hu, Yasser Mohamed, Hosein Taghaddos, Ulrich (Rick) Hermann
The major work in this area is to install a number of pipe-rack modules in a stacked configuration. These modules are pre-assembled in a module yard and shipped to the construction site for final installation. Other disciplines involved include piling, support structure, piping (for interconnecting modules), silencer installation, hydro-testing, insulation, and electrical cable tray. Fifty one work packages are identified with quantity, work areas, dependency relationships, and resource requirements data. A sample of these work packages is shown in Table 1. As a typical oil and gas project, overlap between work packages (e.g. work packages 38 to 42 and work packages 44 to 49 in Table 1) exists as insulation can be started before hydrotesting (specifically reinstate) is completed to achieve shorter schedule duration. This overlap can lead to congestion issues that impact safety and productivity of workers. Five trades are required to perform these work packages, which results in about 250 activities taking place where these work packages are located. Daily availability limit for each trade is shown in Table 2. The pipe-rack module packages are selected here as they suffer the most from overlaps between trades in the same work area and therefore are subject to congestion constraints.
Experimental study of the direct shear characteristics of cement grout under constant normal loading and stiffness boundary conditions
Published in European Journal of Environmental and Civil Engineering, 2023
Dajiang Liu, Hongwen Jing, Bo Meng, Yuan Gao, Zixuan Yu
By virtue of the stable structure, mechanical performance, high-strength anchoring force, pre-tightening force and strong adaptability to the surrounding rock, the grouting cable has been widely used in mining engineering (Benmokrane et al., 1995; Kaiser et al., 1992). In the installation of the grouting cable, the cement mortar is first injected into the pre-drilled hole and then the cable is inserted and stirred evenly (Kılıç et al., 2002). After the cement mortar solidifies, the cable is stretched, and the anchor cable tray is installed (Harrison, 2013). The cement mortar bonds the cable wire with the borehole wall to form a basic anchoring structure, which constitutes the source of the anchoring force of the grouting cable (Benmokrane et al., 2000).