What is the Power Supply Size in Container Houses

There is no unified standard for the power supply size in container houses, which typically ranges from 5kW to 30kW or higher, depending on the internal configuration and purpose. Here is a detailed explanation:

1. Basic Power Consumption Components The power consumption of a container house is mainly composed of the following parts:

• Lighting and Socket System: LED lighting typically has a power range of 100W-500W, while the total power of ordinary office sockets (for computers, printers, etc.) is approximately 2kW-3kW.
• Air Conditioning System: An office with an area of 18-30 square meters requires the installation of an air conditioner ranging from 1.5 to 3 horsepower. A 1.5-horsepower air conditioner has a cooling power of about 1.1kW and a heating power (including electric auxiliary heating) of up to 2.5kW; a 3-horsepower air conditioner has a cooling power of about 2.5kW and a heating power of over 5kW.
• Water Dispenser/Water Heater: The power typically ranges from 1.5kW-3kW. If an electric water heater or a high-power water dispenser is installed, additional load is required.
• Other Equipment: The total power of exhaust fans, surveillance systems, network equipment, etc., is approximately 0.5kW. If microwave ovens, coffee makers, etc., are installed, their power should be calculated separately.

2. Power Configuration Recommendations for Different Scenarios

• Standard Office Scenario (office work, lighting, and air conditioning only): A recommended power range of 6kW-8kW is suggested. The circuit design should use single-phase 220V power supply, and the incoming cable is recommended to be no less than 10mm² copper wire.
• Comprehensive Office Scenario (including water dispenser, small kitchen appliance, microwave oven): A recommended power range of 10kW-12kW is suggested. The circuit design should use a three-phase five-wire system (380V) power supply, and the incoming cable is recommended to be no less than 16mm² copper wire.
• Special Requirement Scenario (such as coffee shops, exhibition halls, laboratories): A recommended power range of 15kW-30kW or higher is suggested. The total load should be calculated based on specific equipment. The circuit design must use 380V three-phase power supply and install an intelligent distribution box for branch circuit control to avoid overload risks.

3. Selection Criteria for Power Cord Cross-Sectional Area According to Israeli standards, the cross-sectional area of the power cord in a container house should match the load current:

• 10A Load (below 2.2kW): It is recommended to use 1.5mm² copper wire.
• 16A Load (below 3.5kW): 2.5mm² copper wire is required. If the total power exceeds the above range, thicker cables should be selected based on current calculations. For example, a 32A load (about 7kW) requires 6mm² copper wire to ensure electrical safety.

Summary: The power configuration of a container house should be comprehensively designed based on equipment power, usage scenarios, and safety regulations. It is recommended to select an appropriate power supply solution according to actual needs and consult a professional electrician for circuit planning.