1. How many watts can be loaded on a 1 square wire

An electrician commonly used "empirical formula": as long as the copper-core wire, each square millimetre of cross-sectional area can safely pass 4 - 5A rated current; in the 220V single-phase circuit, every 1KW of power, the current is about 4.5A; in the 380V three-phase balanced circuit, every 1KW of power, the current is about 2A or so. The above values are close to the results of the physical formulae used to calculate them, so in order not to remember those "tedious" formulae, the electrician can remember these. So according to this algorithm, we know: for every 1 square millimetre of cross-sectional area of copper wire, if used in a 220V single-phase circuit, it can safely carry 1KW of current through the load; if used in a three-phase balanced load (such as an electric motor) circuit, it can safely carry 2.5KW of current through the load.

2. How much wattage can be carried by a 1.5 square wire 

If the power line is a copper-core wire, one is the maximum allowable working current for open-wire installation is 20A, i.e. 4400 watts; the second is a concealed set of steel pipes, the current is 16A and the power is 3520 watts; the third is a PVC pipe concealed installation, the current is 14A, then the power is 3000 watts.

3. 2.5 square wire can be loaded how many watts 

2.5 square wire Excel by pouring how many kilowatts of electricity, the national standard GB4706.1-1992/1998 wire load current value, copper-core wire 2.5 square millimeters 16A ~ 25A about 5500 watts, aluminum-core wire 2.5 square millimeters 13A ~ 20A about 4400 watts 220VAC voltage for a long time does not exceed 10A most standard The vast majority of the time does not exceed 15A count Safe .

4. 4 square wire can be loaded with how much wattage 

Single-phase power supply 1KW is about 4.5A, 8KW is about 36A. 4 square wire (a single plastic copper wire) capacity is about 30A, a little smaller, for 6 square wire (single-run power). Your meter and gate must be replaced with a larger one. You don't need such a high power, but a minimum of 4KW can be used. 4 square wire is subject to how many kilowatts of power that depends on whether you are using 220v electricity at home or 380v in a factory. 4 square wire can carry 6 to 8 kilowatts if 220.

5. How many watts can be loaded by 6 square wires 

6 square wire can load how many kilowatts? There is no direct link between the diameter of the power line and the power delivered, generally speaking 6 square wire is more than enough for air conditioning lines. For maintenance power on construction sites, 10x6+1x4 cables are generally used. As for the current strength, according to my experience, this cable is usually controlled by a 63 A air switch. 6 square aluminium wires can carry 6 kW and 6 square copper wires can carry 10 kW.

------------------------------------------END-----------------------------------------------

This article is sourced from the internet. We focus on sharing and the copyright belongs to the original author.

Zhejiang Qinshan Cables Co.,LTD