Core Guide for Customizing Power Distribution Boxes
I. Customization Process
1. **Requirement Analysis**
- Clarify the purpose: Residential/industrial/commercial power distribution, equipment control, emergency power supply, etc.
- Load List: List parameters such as the names, powers, voltages, and starting currents of all electrical equipment.
- Installation Environment: Indoor/outdoor, humidity/temperature, dust/corrosive gases, etc.
2. **Parameter Design**
- Rated Voltage: AC 220V/380V (according to equipment requirements).
- Total Current Capacity: Calculated based on the sum of loads multiplied by a safety factor of 1.2 to 1.5 times.
- Number of Branch Circuits: Divided according to functions or areas (such as lighting, air conditioning, dedicated lines for equipment).
3. **Function Configuration**
- Main Circuit Breaker: With leakage protection (for households) or high breaking capacity (for industries).
- Branch Switches: Miniature Circuit Breakers (MCB) or Molded Case Circuit Breakers (MCCB).
- Additional Functions: Surge protection, intelligent monitoring modules, remote control, etc.
4. **Structural Design**
- Material Selection: Cold-rolled steel plate (needs to be sprayed with plastic for anti-corrosion), stainless steel (for outdoor use), insulating plastic (for special environments).
- Protection Level: IP54 (dust-proof and splash-proof), IP65 (waterproof), IP66 (strong waterproof).
- Size Planning: Determine the size of the box according to the number of components and heat dissipation requirements.
5. **Production and Testing**
- Draw electrical schematic diagrams and installation diagrams, and mark the numbers of terminal blocks.
- After factory assembly, conduct withstand voltage tests (2500V/1 minute) and insulation resistance tests (≥50MΩ).
II. Examples of Core Parameters
| Parameter Items | Example of Residential Power Distribution Box | Example of Industrial Power Distribution Box |
| Rated Voltage | AC 220V | AC 380V |
| Total Current | 63A | 250A |
| Number of Branch Circuits | 8-12 circuits |
Copyright 1998-2024© China Electrical Group Wankong Electrical Equipment Manufacturing Co., Ltd Whatsapp-86+13811255435 China_Electrical_Group. Sitemap 
|
