Pre-twisted Wire Electrical Engineering Terminology

armour rod is used for connecting fittings of overhead power conductors and terminals, suspensions, joints, etc. of overhead power optical cables. armour rod in transmission line first appeared in the United States in the 1940s and 1950s. The original product was a spiral protective wire used to protect the stress concentration position of bare conductors and the position of electrical corrosion and arc burn. After years of development, armor rods conductor fittings have been widely used in power transmission and distribution, optical fiber communications, electrified railways, cable TV, construction, agriculture and other fields.
Steel core aluminum conductor is the mainstream conductor widely used in 10 kV distribution network lines. It has a series of advantages such as high tensile strength, good lightning protection performance and low cost. It is widely used in suburban junctions and rural power lines. However, once the steel core aluminum conductor line is damaged by external forces or affected by bad weather, it is very easy to cause mixed short circuit faults of conductors. After mixed short circuit occurs, the conductor will break. If this situation is found, appropriate wire repair treatment must be given in time to avoid the continued reduction of mechanical properties and conductivity of the conductor due to the continued loose strands.