Pre-twisted guard strip
1. Purpose and structure
Pre-twisted protective strips are used to protect conductors from vibration, clamp stress, friction, arcing and all other external damage. Pre-twisted segment protection strips can protect conductors from arc, friction or other damage on short-span lines when the conductor vibration is not serious. They can also be used as repair strips to repair damaged wires and restore them to their original mechanical strength and electrical conductivity. It can also be used to protect branch lines to avoid damage caused by arcs and friction at branch points of conductors.
The structures of pre-twisted protective strips and pre-twisted short protective strips are simple. A group of pre-twisted wires form an empty tube, which generates gripping force when wrapping the conductors to protect the conductors.
2. Characteristics
1) Small wear: Since the guard strip and the short guard strip hold the wire tightly, the slip of the wire is avoided, so the wear of the wire can be minimized;
2) Anti-loose: Because the pre-twisted wire has tight grip elasticity, it can ensure that it will not loosen for a long time;
3) Good corrosion resistance: The lines have been treated with anti-rust treatment to ensure strong corrosion resistance;
4) Simple installation: no special tools are required, it can be installed quickly and easily on site with bare hands, and can be completed by one person;
5) The installation quality is easy to ensure: no special training is required, it can be inspected with the naked eye, and the appearance is simple and beautiful;
6) Strong universal performance: can be used with a variety of hardware.
3. Continuation instructions
1) When less than 25% of the outermost aluminum wire of the copper-core aluminum stranded wire and the outermost aluminum wire of the aluminum wire are broken, the pre-twisted short guard wire MG can be used to repair it, which can restore 100% of the mechanical and electrical performance;
2) When 25%-50% of the outermost aluminum wire of the copper-core aluminum stranded wire and the outermost aluminum wire of the aluminum wire conductor are broken, pre-twisted protective wire AR can be used to repair it, which can restore 100% Mechanical and electrical properties.