Without electricity and electric power it is impossible to imagine the existence of our planet, literally and figuratively will come the end of the world. Power lines or in short power lines are the suppliers of electricity to homes and businesses.
Norma Cable” company offers products and equipment for overhead power transmission lines from leading manufacturers, of high quality and reliability. Cooperation with “Norma Cable” has a lot of advantages:
– Competitive prices;
– The company works directly with manufacturers;
– The ability to purchase goods in installments;
– Constant discounts;
– A wide range of products;
– Delivery of equipment in an optimally short time.
Power lines are not just wires and metal poles, as it may seem to a non-specialist, but are a complex system consisting of various elements. Power lines are divided into cable and overhead structures.
Cable power lines are a system of cables encased in insulation. In turn, the insulation can be liquid or solid. There is a gas isolation, but it is very rare.
Overhead power lines are the fittings on which the wires are mounted. In a complex system also includes insulators, lightning arresters, surge arresters, grounding loop.
Power line equipment:
– Fittings;
– Supports;
– Insulators;
– Ropes and grounding;
– Wires, the most popular, thanks to the high technical characteristics are CIP.
The supports can be separated into a separate block of equipment for power transmission lines. There are many factors which influence the choice of material for erection of supports, including type of soil, type of terrain, height of structure, wind loads. Supports made of wood are not used as often as they used to be, but they are used in hard-to-reach areas because of the ease of installation and low weight. Such constructions are themselves good insulators.
Reinforced concrete supports are strong and reliable, not susceptible to temperature fluctuations, can have any height.
Metal structures have the highest technical characteristics, but are more expensive. The strong alloy from which the poles are made can withstand heavy loads, is not prone to corrosion, and the shape of the structure is designed to protect the wires from damage, which means that the support will last much longer.
When installing power lines use a variety of devices and tools, which can be purchased from us in the company “Norma-cable. These are shears, winches, sealing materials, rollers, presses, and much more. Detailed consultations can be obtained on the website of the company.
