: QQ:2251311805 : Feng Huai
Personal safety wire is mainly used for low-voltage lines and secondary protection during power outage maintenance of overhead lines and electrical equipment, * to protect against induced voltage injury in the maintenance line.
Composition of personal safety wire: personal safety clamp soft copper wire copper lug grounding clamp
Common configurations of personal safety wire:
(1) Connect to cross arm: equipped with16 square soft copper grounding wire4*1.5 meters+1.5 meters, with pliers or grounding rod.
(2) Grounding: equipped with16 square soft copper grounding wire4*1.5 meters+1.5 meters, with pliers or grounding rod .
(3) Connect to cross arm: equipped with16 square soft copper grounding wire3*1.5 meters+1.5 meters, with pliers or grounding rod .
(4) Grounding: equipped with16 square soft copper grounding wire3*1.5 meters+1.5 meters, with pliers or grounding rod .
Detailed introduction of personal safety wire:
Personal safety wire is to ensure the safety of personnel and equipment, ensure the integrity of the safety grounding wire. The safety grounding wire should be stored in a well-ventilated, dry place. When using this grounding wire on electrical equipment, it should be carried out in accordance with the relevant provisions of the electric power safety work regulations. Before using this safety wire, first check for voltage, discharge, confirm that the electrical equipment is de-energized and the grounding wire is hung, then proceed with the operation. Personal safety grounding wire is a safety tool to protect construction personnel from induced voltage electric shock, and cannot replace the role of the portable short-circuit grounding wire specified in the SD332-89 ministry standard. Before using the safety grounding wire, routine inspection should be carried out. If defects such as clamp cracking, damage, poor contact of connecting parts, looseness, or damage to the insulation protective layer are found, use is prohibited.
Use and maintenance of personal safety wire:
Before using the personal safety wire, first check for voltage to confirm that the power is off, and then proceed after confirming that there is no voltage on the equipment. First connect the grounding clamp to the grounding grid or flat iron, then use the grounding operating rod to tighten the wire end clamps on the equipment conductors. When removing the short-circuit grounding wire, the order is exactly the opposite. The distance between the installed short-circuit grounding wire and the live equipment, considering the influence of the grounding wire swing, should not be less than the value specified in the new "Electric Power Safety Work Regulations". It is strictly forbidden to use winding methods instead of clamps for grounding short-circuit. The portable short-circuit grounding wire should be properly stored. Before each use, carefully check whether it is intact, the soft copper wire is not exposed, and the nuts are not loose, otherwise it must not be used. The inspection cycle for portable short-circuit grounding wires is every five years, and the inspection items are the same as factory inspection. After a portable short-circuit grounding wire that has passed the test is subjected to a short circuit, it should be judged based on the magnitude of the short-circuit current and appearance inspection, and generally should be scrapped.
Notes for personal safety wire:
1. Short-circuit has two categories: phase-separated and combined, and there are two types of wire end clamps: flat mouth and hook type. Please specify when ordering. 2. The cross-sectional area and length of the soft copper wire are matched according to the specific requirements of the user.
3. When ordering, the wire specification range and voltage level must be stated.
4. The insulating operating rod is selected and matched according to user requirements.
5. This factory is equipped with grounding devices, and users can choose according to their needs.
1. Overview of portable short-circuit grounding wire and high-voltage grounding wire:
(1) Function of portable short-circuit grounding wire and high-voltage grounding wire: used for line and substation construction, to protect against electric shock caused by static induction from nearby live bodies or to protect against accidental closing.
(2) Structure: The portable short-circuit grounding wire consists of an insulating operating rod, wire clamp, short-circuit wire, grounding wire, grounding terminal, bus clamp, and grounding clamp.
(3) Manufacturing process: The wire clamp and grounding clamp are die-cast from high-quality aluminum alloy; the operating rod is made of epoxy resin colored tube, with good insulation performance, high strength, light weight, bright colors, and smooth surface; the soft copper grounding wire is made of multiple strands of high-quality soft copper wire twisted together, and covered with a soft, transparent insulating protective layer, which can protect the grounding copper wire from wear during use, meet the fatigue test requirements of copper wire, and ensure the safety of operators during operation.
The short-circuit grounding wire is a common safety tool used to temporarily short-circuit and ground de-energized equipment. Its purpose is to discharge residual charge, prevent dangerous voltage from accidental power supply or induced voltage caused by nearby live equipment or lines, which could cause electric shock death or severe burns to workers. During work, the short-circuit grounding wire is regarded as the lifeline of workers. In the research topic "Study on the Integrity Rate of Portable Short-Circuit Grounding Wires", QC team members analyzed the various causes of grounding wire damage through current situation investigation, formulated countermeasures, and effectively solved the problem of grounding wire damage.
Voltage levels:380V,6KV,10KV,35KV,66KV,110KV,220KV,330KV and500KV.
Specifications:16 mm2, 25mm2, 35mm2, 50mm2, 70mm2, 95mm2
Knowledge introduction of grounding wire soft copper wire:
[Diameter]16 square millimeter soft copper wire,25 square millimeter soft copper wire,35 square millimeter soft copper wire,50 square millimeter soft copper wire,75 square millimeter soft copper wire,90 square millimeter soft copper wire
[Grounding method] Grounding by driving ground rod into earth, grounding by cable clamp on busbar
[Material] Die-cast aluminum material, die-cast copper material
[Soft copper wire model classification] Models:3*1＋6 grounding wire,3*1＋10 grounding wire,4*1＋10 grounding wire,3*1＋15 grounding wire,3*3＋15 grounding wire and other models.
Technical standards for portable short-circuit grounding wire:
(1) Measure DC resistance between each wiring lug, for 25mm
