Cable jointing supplies high voltage and low voltage. When the various layers are removed, cuts should extend only partially through the layer. Join the wire armor from one end to the other end and cut excess wire to the correct length. A good cable jointing and installation provides a better supply of power fig. Cut the ends of the case to suit the cables using a hacksaw. Every cable, whether it is lowtension type or hightension type, needs proper termination so that a cable run can be connected to a piece of equipment, usually a circuit breaker, a transformer, a motor and so on. In this method, as the cables need not be armoured, the cable jointing procedure becomes simpler.
High voltage cable jointing up to 20 kv this specification has been developed from the power network standard. Introduction ifferent types of cable splicing and termination kits. Procedure of products a z below is an az of the cable jointing products and supplies which we have available. Find cable jointing stock images in hd and millions of other royaltyfree stock photos, illustrations and vectors in the shutterstock collection. The aim of a cable jointer must therefore to be to obtain a joint whose electrical properties are as good as the original cable both in electrical and mechanical terms. Wiping type cable glands to be used of approved quality as per standard size. Energy high voltage cable accessories up to 245 kv insulating and nontracking heatshrinkable outer tube torque controlled lug able sheds heatshrinkable stresscontrol tube stressrelief material solderless grounding accessory sealant max.
The above joint may be constructed without cutting through the mains cable uncutmain using the appropriate connectors. For example, when removing cable insulation, the installer. Weems tn1452 20 pp illus august 1976 unclassified 1. They are the cable jointing product of choice of energy supply companies, industry and the electrical trade for permanently connecting cables buried in the ground.
May 14, 2014 sps high voltage cable joint kits are designed and tested to bs7888 and cenelec hd 628 s1 and hd 629 s1 hv cable joints kits are available to joint xlpe, pilc, picas, epr and triplex high. Optical fibre cable jointing december 20 optical fibre cable jointing 1. Ensure the armor spread evenly over the entire joint. Make sure that the connectors are at least 10mm apart. Mediumhigh voltage cable preparation it is necessary to begin with a good cable end. When the various layers are removed, cuts should extend only partially. Method statement for installation of high voltage hv cables. Regular education and training in risk management are critical in controlling occupational hazards. Index terms cable works, cable termination, cable splicing, jointing kits, hazardous compounds i. Sep 08, 2014 the quality of a joint or termination depends to a large extent on the skill of cable jointer.
It can function as a waveguide, or light pipe, to transmit light between the two ends of the fibre. Jul 08, 2017 how to make termination joint of 11kv 3 core xlpe cable this video is explains the complete procedure of cable termination joint. A cable joint protects cables against moisture ingress, dust and penetration by foreign objects. Energy high voltage cable accessories up to 245 kv understanding the value of high voltage cable accessories as essential elements in a cable system since the foundation of raychem in 1957, we have specialized in the development, design, manufacture and installation of cable accessory products. Terminations to be carried out as per standard and approved procedure. Method statement for installation of high voltage hv.
Mseal kastex joints and terminations for lv cables are based on a cast resin system. Prior to shift the cable supports to the site, the supports frame, stand andor brackets shall be inspected and checked against the issued for construction or standard drawing. All test result shall be submitted after meggering of the cables. Managing safety hazards in electric cable splicing and. Terms printed in bold type are as defined in the scottishpower safety rules electrical and mechanical. Contractor shall take back all the cable drums from site after successful laying, testing and commissioning of cables. Relicon cable joints are suitable for universal application as branch or straight through joints in lowvoltage electrical installations. The casting resin is polyurethane based which has complete compatibility with the cable components. Raychem three core terminations 12kv unique zno based stress control system. Step 6 visually inspect the cable on which it is proposed to carry out work to ascertain its general. Thousands of new, highquality pictures added every day. This is a straight joint used for small solid cables. Dependence on operatorskill is sought to be reduced to the extent. Cable jointing is a necessary part of daily life for electrical engineers, and high expectations are placed on the end result.
Practical hv cable jointing and terminations for engineers. A key to good cable preparation is the use of sharp, high quality tools. Tightly wrap the cable from armor to armor while applying adequate tension around the insulation. Raychem three core terminations 12kv are heatshrinkable medium voltage terminations ixsuf for indoor and outdoor applications for polymeric cables. If you continue browsing the site, you agree to the use of cookies on this website. 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. This method statement defines the procedure step by step to implement the correct practices for installation of high voltage hv cable in order to ensure that the job execution complies with the project requirements and serves the intended function to satisfactory level. Included are deadbreak separable connectors elbows and ancillary. How to make termination joint to the 11kv 3 core xlpe cable.
This specification includes heat shrink, cold shrink and cold applied joints and terminations for lv, 11kv, 22kv and 33kv cable. Using the proper size of the connector for the particular cable. Sps high voltage cable joint kits are designed and tested to bs7888 and cenelec hd 628 s1 and hd 629 s1 hv cable joints kits are available to joint xlpe, pilc, picas, epr and triplex high. A properly designed cable joint with the instructions meticulously followed is essential. 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 application. Fewer chances of fault occurrence due to the strong mechanical protection provided by the system. For this reason, it is common practice to cut off a portion of cable after pulling to assure an undamaged end. The aim of a cable jointer must therefore be to obtain a joint whose electrical properties are as good as the original cable both in electrical and mechanical terms. The 33kv joints are installed using normal procedures for heat shrink cable joints with clear installation instructions confirming precise cable stripping dimensions and marking measurements for sheath, semicon and insulation removal joints are installed using the standard cable jointing tools depending upon cable construction.
The quality of a joint or termination depends to a large extent on the skill of cable jointer. By ensuring that delegates are conversant with the full range of joints, accessories and terminations in use today, we aim to provide a comprehensive update on the latest in cable accessories up to and including 33kv. Use pulling tension measuring device a dynamometer 1,000 pounds. Branch joints stripping dimensions main cable size mm2 dimension x mm 1. Inquiry if you are interested in 33kv cable jointing procedure,please feel free to give your inquiry in the form or the email below. Typical electrical cable jointing methods western union splice joint. Wrap the cable with the mesh tape and then use the standard vinylpvc tape to wrap over the mesh to. Mseal kastex cable accessories for low voltage pvc pilc xlpe cables have been designed for simplicity in installation and a prolonged service life. Repairs, additions or alterations to the cable network can be easily made from manholes without reexcavation. 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. Technical note voltage cable splicing and cable termination. It is important that cable jointing not taken casuallyis.
Cable jointing has become the preferred pick over conventional systems for cable termination, cable abandonment, low voltage cable jointing and cable repair. The cable joint kits include thickwall heat shrink adhesive lined tubes to provide high performance water sealing, protection and corrosion resistance in above ground exposed or direct buried underground cable trenches the outer protection heat shrink tubing colour black provides a moisture barrier to water ingress through the activation of an inner lining of adhesive which melts and flows upon the application of a heat source provided by the cable jointers gas torch. The product will remove even heavy or old deposits without hazard to user, environment, substrate or insulation materials. Cable jointing has become the preferred pick over conventional systems for cable termination, cable abandonment, low voltage cable jointing and. The design of cable jointing and termination accessories is based on this perception. The idea of having conducting or semiconducting parts in the joint was tested based on some earlier designs of high voltage cables 4. Completing the joint after making the earth braid connections place a half of the joint case around the joint positioning centrally. Shrink polymer systems 11kv cable joints are tested to cenelec standards hd 628 s1 and 629. Shrink polymer systems 11kv cable joints are tested to cenelec standards hd. Jsafor cable jointing termination free download as word doc.
They show typical arrangements but the procedures are the same for any variation of joint. Work or testing on hv cable systems including cables subject to induced voltage opsaf5. Cable lugs shall be tinned copper compression heavy duty type. Procedure of xlpe cable jointing procedure armoured cable. Library card civil engineering laboratory high voltage cable splicing and cable termination techniques final, by david e. Relicon cable joints are longitudinally and laterally waterproof. Introduction an optical fibre is a flexible, transparent fibre made of high quality extruded glass silica or plastic. Step 5 identify any cable on which work is to commence in accordance with the procedure specified in opsaf10012 pssi 12, appendix 1. How to make termination joint of 11kv 3 core xlpe cable this video is explains the complete procedure of cable termination joint.
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