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The quality of safety slide contact wire can be measured according to the following standards:
1. Carbon brush service life -- it is a consumable item, and the travel distance affects the equipment maintenance cycle.
2. Quality of slide contact wire shell -- applicable temperature, environment, etc.
3. Expansion issue of slide contact wire -- expansion must be considered when the length exceeds 100 meters.
4. Voltage drop issue -- the voltage drop varies according to the length of various copper bars.
Rigid safety slide contact wire: used for high-current equipment, with current up to several thousand amperes.
Tube-type slide contact wire: combined according to different pole numbers, current can also reach thousand amperes.
Safety slide contact wire is also called safety slide wire, slide contact wire, slide wire.
Safety slide contact wire is used to supply power to moving equipment. It consists of two parts: the slide rail (fixed part, connected to the power source, usually made of rails of 4m/piece or 6m/piece connected together), and the current collector (sliding part, which can slide on or inside the slide rail and contact the copper bar to collect electricity, used to connect with the moving motor).
Commonly used are safety slide contact wires (tube type, enclosed), single-pole combined slide contact wires, rigid slide contact wires, multi-pole tube-type safety slide contact wires, seamless safety slide contact wires, cable safety slide contact wires, I-beam cable trolleys, etc. Great improvements have been made in protection level and insulation, making them safe and reliable.
The quality of safety slide contact wire can be measured according to the following standards:
1. Carbon brush service life -- it is a consumable item, and the travel distance affects the equipment maintenance cycle.
2. Quality of slide contact wire shell -- applicable temperature, environment, etc.
3. Performance of current collector -- mainly from the service life of wheels, design of turning wheels, and whether the current collector can be used in various environments.
4. Expansion issue of slide contact wire -- expansion must be considered when the length exceeds 100 meters.
5. Voltage drop issue -- the voltage drop varies according to the length of various copper bars.
1. Product structure: The type slide contact wire consists of guide rail, protective sheath, current collector, hanger, connector, fixing clamp, end cover, etc. According to user requirements, expansion section (thermal compensation device), maintenance section (isolator), etc. can also be configured.
2. Guide rail and protective sheath: The guide rail is made of aluminum alloy profile with good conductivity and strong environmental adaptability (grade 6063, state T5). The lower part of the guide rail is embedded with a "V"-shaped stainless steel groove to ensure wear resistance, stability, and good contact when the current collector brush slides along the groove.
The guide rail is generally fixed at 6 meters. The protective sheath is made of engineering plastics with toughness, wear resistance, anti-aging, and flame retardant properties, providing good insulation protection for the guide rail and ensuring personal safety.
3. Current collector: The current collector is a support-type structure and is the main component for supplying power to moving equipment. It consists of special carbon brushes, terminal posts or terminals, plastic protective cover, support arm, etc. It applies appropriate contact pressure, slides smoothly along the guide rail, and supplies power to the equipment. When the equipment needs maintenance, the carbon brush of the current collector can be pulled away from the guide rail to cut off power, ensuring safety and convenient operation.
4. Connector (also serving as power supply): The connector is specially used for end connection between guide rails. It is reliably connected by pressing plates and bolts, and the shell is made of engineering plastics as a protective cover. The protective sleeve also serves as a power supply, and the port can introduce the power incoming line, which is fastened together with the connector pressing plate and bolts.
5. Hanger, fixing clamp, and end cover: The hanger is a special part for hoisting and fixing the slide contact wire guide rail. The fixing clamp is a device that limits the guide rail at the bracket. When the guide rail expands and contracts due to temperature changes, it guides the guide rail to extend to both sides of the fixing clamp. The end cover is installed at both ends of the guide rail for insulation protection. Both the hanger and end cover are made of engineering plastics.
6. Expansion section (thermal compensation device): The expansion section is also called expansion joint, thermal compensation device, etc. It consists of connector pressing plates, compensating aluminum or copper plates for power supply, lead wires, etc., and the shell is made of engineering plastics. When the guide rail expands and contracts due to temperature changes, the expansion joint adjusts its gap to avoid deformation of the guide rail. Generally, when the workshop length exceeds 200 meters, one set is configured for every additional 100 meters.
7. Maintenance section (isolator): The maintenance section is made of connector pressing plates and high-strength insulating materials, with an engineering plastic shell as a protective cover. It is selected according to user needs and is mainly convenient for maintenance of slide contact wires, moving equipment, etc.
Safety slide contact wire: used in dusty, humid environments, can be equipped with dust-proof sealing strips and hand protection (when the slide contact wire is very close to people, hand protection should be configured, such as akapp). The running speed of the current collector is less than 300 meters/minute.
Single-pole combined safety slide contact wire: easy to install, fast speed, speed can reach 500 meters/minute (imported slide contact wire can achieve).
Rigid safety slide contact wire: used for high-current equipment, with current up to several thousand amperes.
Tube-type slide contact wire: combined according to different pole numbers, current can also reach thousand amperes.
Slide contact wire installation acceptance standards
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
