Position the second long sealing sleeve over the center of the joint.Overlap the previously installed sealing sleeve by 100 mm. They are named tap splices because the loose wire can then tap the flow of the conductor. Wrap the joint case around the joint and secure it with about two layers of cloth tape as shown in the picture. by distribution, connection or junction boxes with devices for relieving electrical stress, Cable junctions protected by sleeves, e.g. Unique 60 Modern And Classic Wooden Main Door Design Ideas, 40 Amazing DIY Project Pallet Swing Design Ideas, 1619 Sq Ft 3BHK Contemporary Style Two-Storey House And Free Plan, 30 Smart Bathroom Design Ideas With Washing Machine, Magnifico One Storey House With Detailed Exterior. Joint the conductors by crimping. Keep the torch aimed in the shrink direction to pre-heat the material. (adsbygoogle = window.adsbygoogle || []).push({}); There are three main types of electrical joints, also known as splices: The Western Union splice, the tap splice, and the fixture splice. The hot ridges melt the polymer material sufficiently to anchor the polymer insulation on both sides of the joint to the heat sink ridges. A solution to this problem is described in WO 86/02210 where shrinkback is prevented by anchoring a special heatsink device in the polymer insulation sheaths on both sides of the conductor joint. Note: Continue immediately with step 10 while the insulating tubing is still hot. The slip-on tubing is inserted first and then the wires are jointed. Adhere to the installation instruction of the kit manufacturer. Note: Do not use too much void-filling compound. The slip-on tube is pushed in place and fused. Most of the melted polymer will flow into the joint as indicated at 15 and 16. Overlap the cables to be jointed by 100mm. Wrap with rubber tape and vinyl electrical tape around the barrel of the cable lugs. Solder Sleeves are similar to the Crimp Splice; however, they have the added benefit of having an inner lining of solder that creates the joint when being heated. These find use in tunnels and underground applications. Simple and easy and you can get these anywhere! What Happens When Sugar Is Added To Concrete? The local network uses wired connections to connect computers to other computers and also to other devices such as printers. Use is made of a hard box coffin and heat shrinkable tubes on the outer sides for protection. Cover the sharp edges of the screw clips with a piece of cable oversheath. Prior to jointing of the cables, physical inspection, and phase identification/verification. The heat sink device consists of two sleeve halves 7 and 8 having inner side ridges 9, 10, 11 and 12. This acts as a replacement for the wire insulator and keeps the wires safe from catching on fire. The end of the wire is inserted, then the connector is closed, clamping the wire inside. A good example of the use of a solder sleeve is splicing a piece to wire to the braid of a multi-core cable. Within a fraction of a second a permanent, solid and pure connection, with outstanding physical properties, is created. Start shrinking in the center working towards the ends. Screened Insulating Sleeves (Black and Red). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); View compaqinternationals profile on Facebook, View compaq-internationals profile on LinkedIn, View Compaqinternationals profile on Google+, Mechanical Shear Head Lugs | Mechanical Shear Head Connectors, You can protect your valuable devices now, Surge Arrester Are Must in Every Industry for the Safety of Workers, Arresters and Insulators Are Readily Common These Days, There Are Number of New and Trendy Products Available in Market These Days, Electrical Fuse and Its Application in the Industry, The Electronic Devices Which Are Very Famous and Readily Available. The wires of the loose wire are wrapped around the conductor, first with one on one side and then with five or more on the other. Shrinkback of the polymer insulation is effectively prevented. Electric ribbon cables. Use a solvent recommended by the cable manufacturer (preferably non-flammable). After termination high pot test should be carried out and recorded. Hp 0. =
@d62q These handy splices are great for simple connections and are very popular in electrical installations. Pencil-like blue flame should be avoided. Not using the correct type of electrical joint can result in a useless circuit, at best, and a dangerous one, at worst. Fold and tape it down temporarily so that the next sealing sleeves can be slid over it. Do not cut the earth conductor (if any). Assignors: ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE, GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER, INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES, Cable junctions protected by boxes, e.g. The basic idea is to preheat the heat sink halves and melt/press the hot heat sink inner ridges into the cable insulation. The outer layers of the cables and the joint are not shown. 1141 0 obj
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As a rule, all non-ferrous metals are suitable for this joining technique, however, copper, aluminum and their respective alloys are particularly well-suited. Note: Take care not to accidentally shrink the other tubing at this stage. Change). All our method statements are available on this link: MV cable joint MV cable joint MV cable joint, 2022 by The Engineering Galaxy - All Rights Reserved, Do you want to be notified once I publish this video? endstream
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ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALCATEL;REEL/FRAME:012043/0126, Free format text: Position the screened insulating tubing (blade and red) centrally over the previously installed tubing.Start shrinking in the center working towards the ends. B: Cables with a semiconducting and conducting layer. There is a metal plate inside the terminal where the wires are held. Single-hole compression terminal connectors are permitted for termination on manufactured equipment that has integral provision for single-hole lugs only. These feature sleeves on the cables that you can push-on once you have made the joint. Clean and degrease the ends of the oversheath for length of about 150 mm. Overlap the over sheath by approximately 10 mm. The tension in the tubing makes the joint impervious to water. They shrink radially but not longitudinally. Slide the insulating sleeves over the long core ends. Connect each core to the terminal block according to the termination schedule. Slide the top long sealing sleeve over the long side of the joint.Position the sleeve so that it overlaps for 100 mm onto the over sheath.Shrink it into place start ng from the joint area and world ng towards the over sheath. Multiple conductors without insulation are classified as one conductor. 4- Management Structure/Resources and Responsibilities, Step 03: Cables with extruded semi-conducting screen, Step 08: Installation of Stress Control Tubing, Step 9: Installation of The Red Insulation Tubing, Step 10: Shrinking the screened Insulation Tubing, Step 11: Installation of the armoring above the joint, Step 13: Installation of the Long Sealing Sleeve, Step 14: Installation of the second Long Sealing Sleeve, Step 15: Installation of the Short Sealing Sleeve, 8- Inspection and Test Plan (and Quality Records), 10- Training and Competency of Personnel (see also 13 below), 11- Advise Any Permits to Work required (e.g. Install the junction box at the convenient location without any obstruction from the cable tray. Check to ensure that the kit you are going to use fits the cable. Broadly, we classify them in the groups given below. Carefully read and the follow the steps of the installation instruction. Check to ensure that the kit to be used fits the cable. PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. Here, the wires or cable are bared and twisted one on another before the heat shrink is applied. with end-to-end orienting, Assembling elongated conductors, e.g., splicing, etc. Assigned to ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE, ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE. The Western Union connector connects two conductors and is especially useful for repairing a broken wire. If you are not sure which is best for you then fear not your helpful cable assembly experts will be there and happy to help you! ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE, ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VARRENG, JAN SVERRE;REEL/FRAME:009358/0173, CHANGE OF NAME;ASSIGNOR:ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE;REEL/FRAME:010070/0287, ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALCATEL;REEL/FRAME:012043/0126, PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362, Cable fitting for the protection of a cable connection in a medium voltage technology, Electrical Connector for End to End Connection, Cable connecting structure, member for cable connecting structure, and method of manufacturing cable connecting structure, Arrangement for electrically connecting conductors of two high voltage cables, A kind of insulated enclosure method of non-isometrical object, Method of jointing and terminating electric cables, High voltage cable joint and heat sink sleeve for use therein, High voltage shielded cable termination, splice connection, and method of making a splice connection, Splice connector with internal heat transfer jacket, Joint for cables with an extruded insulation, Equipment for power cable junction and power cable equipped therewith, Electrical connector with wedges and spring, Electrical connector for end to end connection, Heater cable splice and method of forming, Improvements in or relating to weldable pipe fittings and welded pipe joints, Assembly with self-regulating temperature heater perform for terminating conductors and insulating the termination, Cable joint using a semi-conductive tubular assembly and method to obtain a smoothly shielded connector, Method for environmentally sealing a wire splice, Sealing method and sealing structure of wire connection, Method of jointing and repairing district heating lines and device prior to carrying out the process, System for holding a heat shrinkable tube during a heat shrinking operation, Metallurgical bonded connector for coaxial cables, Method and device for sealing the area of contact sections of electric wire connections, Electric cable joints and methods of making them, Manufacturing method for lead wire connecting part having waterproof structure, Lapse for failure to pay maintenance fees, Lapsed due to failure to pay maintenance fee, Information on status: patent discontinuation. Ensure that cables to be jointed are line checked to ensure correct cables are being jointed. Certificates and licenses for personnel are available on request. Cover the 20mm length of insulation and about 5mm of the extruded semi-conducting screen with conductive paint. The steel surface shall be thoroughly cleaned before making a grounding connection. 1123 0 obj
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This procedure shall be applied to the electrical works of the project which includes the medium voltage cable jointing of new cables for electrical equipment. The purpose of this is to describe in detailed procedure for cable jointing using Armored Type Raychem Jointing Kit and Junction Box, in which connection will be through terminal block. Clean and degrease the insulation. Slide one combined tubing set over each long core end. Relay the cores as far as possible. A good wire splice will hold without a solder, but the solder adds an important backup. Having superior materials assure you long life of the equipment you use and the safety remains guaranteed. Secure the ends of the armor wires with wire binder. This is the easiest type of cable joint to use on the field. Tubing should be cut smoothly with a sharp knife leaving no jagged edges. Hot works; confined space; excavation; electrical), Online Courses for Electrical, Mechanical, MEP & Civil Engineers. Tubing should be cut smoothly with a sharp knife leaving no jagged edges. If solvent is used follow the manufacturers handling instructions. Start shrinking in the center working towards the ends. Create a free website or blog at WordPress.com. Cover the 20mm of conducting layer and about 5mm of the semi-conducting tape screen with conductive paint. Keep the flame moving continuously to avoid scorching the material. It consists of multiple isolated wires running parallel to each other and is used for the simultaneous transmission of multiple data. The tailing should be fully shrunk and wrinkle-free. For ease of installation hold them in place with few layers of PVC tape. Making of suitable grooves do, however, require special cutting tools. Use of superior tools and material is needed to assure quality of the electrical connections. These coffin boxes are filled with cold resin. Main keywords for this article are LV Power Cables Jointing Procedure, Raychem Jointing Kit, Cable Preparation for Jointing, Outdoor Lighting Primary Cables Using Raychem Joint Kit . Most of the wires are made of copper because it conducts electricity with great flexibility and very little resistance. This is simple and involves just twisting the wires and using the tape to cover the joint.
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