Indot prequalification work type descriptions and requirements the indiana department of transportation indot awards contracts for the construction and maintenance of the state highway system. These include three main types of wire splices, soldering and other devices, such as wire. Indots letting advertisements include one to three work types also called prequalification codes. Specification jts040110 ver 1 joint document between energex and ergon energy energex limited abn 40 078 849 055 ergon energy corporation limited abn 50 087 646 062. Cable tray types light duty cable tray standard cable tray is suitable for light and medium duty installation work. These handling and operation instructions do not include submarine cables nor installation or use of these. Cable lugs and tools addition catalogue 20152016 lets. Steel can be broadly categorized into four groups based on their chemical compositions. Twinlead this type of cable is a flat twowire line.
Preinsulated twiston type shall be permitted on solid conductor size no. This means that the electrical field is controlled by the contour of conducting elements integrated into the joint body. A study of a mv cable joint 5 conducting materials, was found to produce an extremely high total field at certain points and thus obstruct the quality of the joint. As explained in the previous section for high voltage applications the common design is to use the geometrical field control method. Electrical connections et 150 electrical connectionselectrical connectionslearning objectiveslearning objectives in this lesson you will. The idea of having conducting or semiconducting parts in the joint was tested based on some earlier designs of high voltage cables 4. Cable types for use on 2 to 4 core 600 volt and 3,3kv cables. The tension in the tubing makes the joint impervious to water. No special bulky sheath crossbonding arrangements are required as on 1c solid dielectric cables. Pdf a new method for determining the connection resistance of. Longterm performance of this type of cable accessory.
Method of joints frame 181 introduction a truss is a structure composed of several members joined at their ends so as to form a rigid body. Undergrounding high voltage electricity transmission. As the cables are not armored, therefore, joints become simpler and maintenance cost is reduced considerably. Practical hv cable jointing and terminations for engineers. Alibaba manufacturer directory suppliers, manufacturers. Computer cable types and descriptions hardsoft computers. The method used for a cable joint depends on the voltage, type of. Care should be taken to ensure that a short wire from one side of the cable is spliced to a long wire, from the other side of the cable. In order to properly mate and install the cable to an elastimold product, the use of a shield adaptor, grounding kit. Mv cable accessories installation best practice pdf ensto. Joints for connecting cables of the same design straight joints or different design. Pdf the compression connector of a cable joint is one of the major.
Prysmian has a range of transition joints that cover these type of gas cable systems jointing on to xlpe cables. These include three main types of wire splices, soldering and other devices, such as wire nuts, screw terminals and crimp connectors. Joints joint devices are used for connecting two cable ends in an extruded cable system. Including resin filled, heat shrink and cold shrink products available from 3m and birkett. Cable joints are a cost effective way of reducing the time which is lost in the process of electrical cable jointing. Euromold provides a complete range of accessories for underground cables. Cable joints are rarely made in shafts, but when they are, the box is usually placed in an inset in the side of the shaft. For jointing of a cable variety of inline adapters and connectors are used.
Heat shrink hs straight joints offer reliability and flexibility to meet the demands of. Joint, in anatomy, a structure that separates two or more adjacent elements of the skeletal system. We will discuss about the different types of high voltage cables, the need for jointing termination as well as various types of jointing termination kits that are available in the market. Shall be hydraulic compression longbarrel type with application preformed insulated cover, heatshrinkable tubing, or plastic insulated tape. There are very less chances of fault occurrence due to strong mechanical protection provided by the system. The management of actewagl transmission cable is covered in the transmission conductor asset specific plan.
The basic principles of cable jointing and terminations construction of electrical power cables, different types of cables for various voltage ratings and manufacturing aspects different types of connectors and connection methods different methods of cable terminations and jointing and choosing an appropriate type for every. This article discusses the joints of the human bodyparticularly their structure but also their ligaments, nerve and blood supply, and nutrition. The universal joints are placed at a 90degree angle to each other, and one counteracts the action of the other while in motion. Page 163 cable cleats, cable joints, cable terminations, cable.
Fiber joints and couplers for fiberfiber connection we need joints which are of two major types fiber splices. The required passage may be for a road, a railway, pedestrians, a canal or a pipeline. Computer cable types and descriptions with so many types of cables, its hard to find a singular source of information that highlights the important differences between them all. The sdp shielded differential pairs, twist or twinax of electrical conductors in a. These types of cable joints are reliable and have a durable life. Forms a protective jacket excellent abrasion resistance for high voltage cable joints and terminations. Premolded cable joints iec standard 605024, ieee standard 404,cenelec hd 629. These cables are available with a variety of optional shielding and jacket constructions. Hv, lv and services cable types the majority of high voltage cables are three core cable type. The cast resin system provides the electrical insulation, mechanical protection and moisture imperviousness to the joint. Different types of steel are produced according to the properties required for their application, and various grading systems are used to distinguish steels based on these properties. Guide to design criteria for bolted and riveted joints.
Elastimold elbows, cable joints and terminators have been designed for use on xlp, epr or similar solid dielectric insulated power cables. Often they may also be referred to as sea factory and land prefabricated. Although the discussion focuses on human joints, its. Wire, cable, and terminations november 2004 design guidelines and standards 3wct splices 600 volt. Twisted pair consists of two interwound insulated wires. Technical specification for underground power cables and. The heat shrink tubing material is either polyolefin or nylon. The purpose of a cable jointer is to lay, joint, terminate and repair underground power cable, they essentially lay new power cables through underground pipes and terminate them at electrical equipment. It is particularly useful for sheathed cables which can be easily dressed and secured to the tray using the numerous perforations. Different types of cable jointing methods in electrical.
Transition refers to a joint involving cables of different insulation types. Handling and operating instructions cable solutions for. Repairs, alterations or additions to the cable network can be made without opening the ground. Three common types of automotive drive shaft universal joints are used on rearwheel drive vehicles. A wide variety of 3 types cable joints options are available to you, such as copper, aluminum. The cold shrink tube will shrink over the cable after you make the joint. The power cable joints are highly reliable, factorymolded and tested cable joints for 15kv, 25kv and 3536 kv class distribution systems. Typically this technology was put into service up to 150 kv. The antitrack shrink material then begins to erode due to the ionisation of the air, which over time will inevitably cause failure of the termination. The file is used carefully and uniformly around the cable until the. Some types of junction boxes are designed to be bolted vertically to the side of the shaft.
The impetus for the preparation of a second edition of the guide to design criteria for bolted and riveted joints has been the enthusiastic reception of the original version and the continued citation for over a decade of that book as a source of information regarding the design of bolted connections. Other than electrical insulation this type of joint find use in providing environmental protection and make seals for cable entry. There are different types of power cable joints, such as straight joint for paper insulated. Design of high voltage cable joints general a premoulded cable joint consists normally of one elastomeric body, where all the stress control elements are. These joints are designed for compression connection, mechanical connectors or soldering of cable conductors. Tool is supplied completely with an operating manual in a box. Straight joints form an integral part of todays power cable networks. No sheath sectionalizing joints, bonding leads, link boxes or sheath voltage lmiters are. Raychem high voltage cable accessories up to 170 kv. Heres an overview of the most common computer cable types youll encounter when dealing with computers. You have clicked a page that seems to be very popular. Types of firestop systems through penetrations membrane penetrations fire resistive construction joints. Range of joints the low voltage heat shrink joint kit has an indefinite shelf life.
The sharp ends are then clamped firmly down on the conductor. They are used to span greater distances and to carry larger loads than can be done effectively by a single beam or. Depending on the type of joint, such separated elements may or may not move on one another. Chapter 11 drive lines, differentials, drive axles, and. There are two types of gas cable systems internal gas pressure and external gas pressure.
No metallic type moisture barrier or sheath is required over the insulation of each 1c cable as is necessary for extruded solid dielectric cables. This is due to the shrinking nature of the silicone material of the tubing. Technical specification 4124 issue 2, november 2018. These perforations also provide ventilation to cool the cables.
Wires form the foundation of a circuit and joining them together is an essential part of making a circuit work. Low voltage cable joints, oversleeving and cable jointing accessories. In this cable jointing type, we use plastic shrinkable tube. Ena technical specification 4124 issue 2 november 2018 page 4 5. The product line includes indoor and outdoor terminations, inline, branch and transition. Figure 26 shows how a twoconductor cable is joined to a similar size cable by using a western union splice and by staggering the splices.
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