Wuxi Electrical Control Cabinet Recycling Manufacturer, High and Low Voltage Electrical Control Cabinet Recycling, Used Transformer Recycling, Old Generator Recycling,废旧配电柜 Recycling, Electrical Control Cabinet Recycling Company, Ring Main Unit Recycling, High Voltage Cabinet Recycling.
Jiangsu, Zhejiang, and Shanghai second-hand electrical distribution cabinet recycling. We recycle various types of power distribution cabinets, including high-voltage and low-voltage distribution cabinets, high-voltage switchgear, power distribution cabinets, compensation cabinets, capacitor cabinets, switchgear, switch boxes, old electrical boxes, and more.
1. According to the schematic, terminals are required for components not in the same location. Never connect three wires to a single terminal. Troubleshooting will not be so straightforward; you must match each one according to the schematic.
1. Wire cross-sectional selection
The wire for the AC 220V voltage circuit should be 1.5 square millimeters; for the current circuit, use 2.5 square millimeters. For lead-acid batteries, 1.5 square millimeters is typically sufficient.
2. When connecting wires, ensure the signals at both ends match to avoid errors.
3. Primarily, understand the circuit diagram and wiring diagram.
Secondly, if you're a beginner, you should first review the drawings, organize your own train of thought, and also check for any issues in the drawings. Clarify any areas you're unclear about before proceeding, as this will be beneficial for the wiring process. Then you can start wiring. The entire wiring process requires attention to detail. Of course, if you're an experienced hand, there's no need to go into all this.
Construction personnel should carefully read and familiarize themselves with the secondary line symbols, and should cross-check the secondary wiring diagram with the schematic diagram to ensure the wiring diagram is accurate and free of errors.
Requirements for secondary wiring installation: Construction according to the drawings, correct wiring; Conductors and electrical components should be securely connected using bolts, plug-in, welding, or crimping methods; Wiring should be neat, clear, and aesthetically pleasing; Insulation of conductors should be good with no damage; No joints should be present on the conductors inside the cabinet; Circuit numbers should be correctly labeled with clear handwriting.
The selection of the cable core wire cross-section should also comply with the following requirements:
(1) Current circuit: The working accuracy class of the current transformer should be ensured. In this case, if there is no reliable basis, the short-circuit current can be determined according to the current capacity of the circuit breaker.
(2) Voltage circuit: When all protective devices are automatically activated (considering development, the load of the voltage transformer), the cable voltage drop from the voltage transformer to the protection and automatic device screen should not exceed 3% of the rated voltage.
(3) Operating Loop: Under load, the voltage drop from the busbar to the equipment should not exceed 10% of the rated voltage.
High-voltage Distribution Cabinet Recycling Brands:
Domestic Distribution Box Recycling: Long-term provider of recycling services for brands such as Chint, Mingri, Yuanhang, Fuji, Delta, TBEA, Schneider Electric, Kaming, Changkai, Shanghai Electric, Changshu Switch, Xujie, General Electric, Beikai, and other domestic brands.
We offer long-term import distribution box recycling services for brands such as Schneider, Delixi, Mingri, Yuanhang, Ruida Science & Technology, ABB, Siemens, Emerson, Omron, Eaton, Mitsubishi, Toshiba, Haige, LG, Bosch-Rexroth, and Schmersal.
