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The Power Cord Under Current Estimates

Shenzhen KW-LINK Electronic Co.,Ltd | Updated: May 16, 2017

The power cord One square of the power cord to the maximum number of electric current, how much power. For example, 2.5 square wires. How to use the electric wires in the construction.

For 1.5, 2.5, 4, 6, 10mm2 wires can be multiplied by the number of the cross-sectional area by 5 times times.

For 16, 25mm2 wires can be multiplied by 4 times times the number of areas.

For 35, 50mm2 wires can be multiplied by 3 times times the number of areas.

For 70, 95mm2 wires can be multiplied by 2.5 times times the number of areas.

For 120, 150, 185mm2 wires can be multiplied by twice times

The power cord Operating temperature 30 ℃, long-term continuous 90% load under the load flow as follows:

1.5 sq mm-18A

2.5 sq mm-26A

4 sq mm-26A

6 sq mm-47A

10 sq mm-66A

16 sq mm-92A

25 sq mm-120A

Square mm-150A

The power cord Power P= Voltage UX current I=220 v x18 ann = 3960 Watts

The Wire load Current value (part) of the specified GB4706.1-1992/1998

Copper Conductor Wire: ... Copper core wire sectional area. Allow long-term current. 2.5 sq mm (16A~25A)

4 sq mm (25A~32A). 6 sq mm (32A~40A)

Aluminum Conductor Wire: Aluminum core wire section area. Allow long-term current. 2.5 sq mm (13A~20A).

4 sq mm (20A~25A). 6 sq mm (25A~32A)

The power cord Examples:

1, each computer consumes about 200~300W (about 1~1.5A), then 10 computers will need a 2.5-square-millimeter copper-core electric wires, or the fire may occur.

2, The power cord large 3 of the air-conditioning power consumption of about 3000W (about 14A), then 1 air-conditioning will need a separate 2.5 mm of copper-core wires for electricity.

3, The power cord the current housing into the line is generally 4 square millimeter copper wire, therefore, the simultaneous opening of household appliances must not exceed 25A (ie 5500 watts), someone in the house to replace the wires into a 6 square millimeter copper wire is useless, because the wire into the meter is 4 square mm.

4, early housing (15 ago) The line is generally 2.5 sq mm of aluminum wire, so the simultaneous opening of household appliances must not exceed 13A (ie 2800 watts).

5, The power cord the power consumption of the larger household appliances are: air-conditioning 5A (1.2 horses), electric water heater 10A, microwave oven 4 A, rice cooker 4 A, dishwasher 8 A, the washing machine with drying function 10A, electric water heater 4A

The power cord In the fire caused by the power supply, 90% is due to the heat of the joints, so all joints are welded, not welded contact devices 5-10 years must be replaced (such as sockets, air switches, etc.).