High Voltage Cable Laying Method

Cable laying shall be started by rotating the drum in a direction recommended and marked side of the cable drum and cables are pulled accordingly.

High voltage cable laying method. Low voltage cables are usually three core xlpe insulated with aconcentric wave wound. There are so many parameters to consider while the laying of these cables. After all the cable is meant to. The outer jacket is extruded hdpe with typically 2mm thickness.

High voltage cables used by western power are normally un armouredsingle core xlpe insulated earthedscreen cables which may be bundled in twisted trefoil for three phase use. Cables placement will take place mainly above ground in perforated ladder type cable trays. Installation of cable trench covers cable protection tiles. Temperature range of the cable bending radius of the cable maximum tension of the cable weight of the cable as well as storage and cutting.

Method of installation laying of low voltage cable. Laying the cables must heed the following parameters. This method of laying underground cables is simple and cheap and is much favoured in modern practice in this method of laying underground cables a trench of about 1 5 metres deep and 45 cm wide is dug the trench is covered with a layer of fine sand of about 10 cm thickness and the cable is laid over this sand bed the sand prevents the entry of moisture from the ground and. Normally in the electrical system most of the high voltage cables are laid under the ground.

In a practical situation there are three main cable laying systems are used commonly for laying these under ground cables which are. Insulation resistance of hv cable should be checked by using 5 kv megger after installation and before termination of cables and readings shall be submitted to the consultant. No matter what method is used for lay ing cables must be segregate takin g into account the voltage level and function in order to avoid possible electro magnetic. Cable shall be tested both before removal from cable drums and on site with a 1 kv insulation tester 5kv for mv cables.

A high voltage cable hv cable is a cable used for electric power transmission at high voltage a cable includes a conductor and insulation cables are considered to be fully insulated.