The installation of low-voltage switchgear accessories produced by Richge Company must strictly comply with safety regulations and technical standards to ensure stable operation of the equipment. Regular maintenance is also required to identify and address potential hazards in advance.
The following are the specific operation methods and precautions:
一、Installation Methods (General Process)
Before installation, preparation work must be completed. During installation, key steps must be closely monitored to avoid safety issues or equipment failures caused by improper operations.
1. Pre-Installation Preparation
l Confirm that the model of the accessory matches the switchgear. Verify information such as the order number and model to prevent incorrect installation.
l Check the appearance of the accessory for damage or deformation, and ensure that all components (such as screws and terminal blocks) are complete.
l Prepare special tools, including insulated wrenches, screwdrivers, and torque wrenches, and ensure the tools have good insulation performance.
l Cut off the main power supply of the switchgear before installation, and confirm that there is no electricity through inspection before starting operations.
2. Core Installation Steps
l Wiring Accessories (e.g., terminal blocks, bus bars): Determine the installation position according to the drawings, and fix the accessories firmly using a torque wrench. The torque value must meet the requirements specified in the product manual. When wiring, ensure that the wires are in tight contact with the terminals without looseness, and that the insulation layer of the wires is not damaged to avoid short circuits.
l Supporting Accessories (e.g., brackets, guide rails): Ensure the accessories are installed horizontally or vertically, with a deviation within the range specified by the product. Tighten all fixing screws to prevent internal components of the switchgear from shifting due to loose accessories.
l Protective Accessories (e.g., insulating baffles, dust covers): Assemble the accessories in the specified order to ensure a tight seal without gaps, achieving the protective effects of dust prevention and electric shock prevention.
3. Post-Installation Inspection
l Manually check whether the accessories are installed firmly without shaking or abnormal noise.
l Use a multimeter to test the continuity of the wiring circuit and confirm there is no open circuit or short circuit.
l Before restoring power, recheck for electricity to ensure operational safety. After power is restored, observe the operating status of the accessories to ensure there is no abnormal heating, alarming, or other phenomena.
二、Maintenance Methods (Regular and Daily)
Low-voltage switchgear accessories produced by Richge Company require regular maintenance and daily inspections. Focus on the operating status and aging condition of the accessories, and address potential issues in a timely manner.
1. Daily Inspections (1-2 times per week)
l Appearance Inspection: Check the surface of the accessories for dust, oil stains, or corrosion marks, and inspect insulating components for cracks or discoloration.
l Operating Status: Through the observation window of the switchgear, check the accessories for abnormal heating (e.g., discoloration of terminal blocks) or abnormal noise, and ensure indicator lights are functioning properly.
l Connection Inspection: Gently touch the wiring connections to confirm there is no looseness (operations must be performed when the power is cut off or under safe conditions).
2. Regular Maintenance (1 time every 3-6 months)
l Cleaning: After cutting off the power, use a dry brush or vacuum cleaner to remove dust from the surface and gaps of the accessories. This prevents dust accumulation from affecting heat dissipation or insulation performance.
l Tightening Inspection: Re-tighten the terminal blocks and fixing screws using a torque wrench to prevent looseness caused by long-term operation.
l Insulation Testing: Use an insulation resistance tester to test the insulation resistance of insulating accessories (e.g., insulating brackets, baffles). The value must meet industry standards (usually not less than 0.5MΩ).
l Aging Replacement: Timely replace severely aged accessories (e.g., rubber sealing rings, wires with damaged insulation layers) to prevent the expansion of faults.
3. Maintenance Under Special Circumstances
l In harsh environments such as high humidity or high temperature, increase the frequency of maintenance. Check the moisture-proof and heat-dissipation conditions of the accessories, and install moisture-proof devices or cooling fans if necessary.
l After faults such as short circuits or overloads occur, conduct a comprehensive inspection of relevant accessories (e.g., terminal blocks, protective devices) and confirm there is no damage before restoring operation.
三、Safety Precautions
l All installation and maintenance operations must be performed by certified electricians. Unauthorized personnel are strictly prohibited from conducting such operations.
l The power supply must be cut off and verified to be disconnected before operations. Live working is strictly prohibited.
l Use insulated tools that meet safety standards during maintenance to avoid accidents caused by tool leakage.
l When replacing accessories, use products with the same model as the original to ensure compatibility and safety.
