Time:2024-12-19 Browse: 4
To compare the 380V cable and power, we first need to understand the current carrying capacity of the cable (i.e. the maximum current that the cable can safely carry under specific conditions) and the calculation method of power (P=√ 3 × V × I × cos φ, where P is power, V is line voltage, I is current, cos φ is power factor, usually assumed to be 1Restaurant Equipment to simplify the calculation).
The following is a simplified comparison of 380V cable and power. Assuming we use copper core cable and do not considerRestaurant Equipment the influence of cable length, laying method, environmental temperature and other factors on current carrying capacity (which need to be considered in practical applications):
Cable specifications (mm ²)
Current carrying capacity (A)
Power (kW)
one point five
ten
six point five eight
two point five
sixteen
ten point five three
four
twenty-five
sixteen point four six
six
thirty-two
twenty-one point zero three
ten
forty
twenty-six point two eight
sixteen
fifty-five
thirty-six point one nine
twenty-five
seventy
forty-six point one five
thirty-five
ninety-five
sixty-two point seven four
fifty
one hundred and ten
seventy-two point six seven
seventyRestaurant Equipment
one hundred and thirty-five
eighty-nine point zero six
ninety-five
one hundred and sixty
one hundred and five point eight nine
be careful:Restaurant Equipment
The current carrying capacity and power in the above table are based on assumptions and may vary in practical applications.Restaurant Equipment
The current carrying capacity of cables is influenced by various factors, such as cable length, laying method, ambient temperature, cable material (copper or aluminum), etc. Therefore, when selecting cables, it is important to refer to the detailed data provided by the cable manufacturer.
The power factor cos φ may be less than 1 in practical applications, so the calculated power may be lower than the values in the table. To improve the power factor, reactive power compensation devices such as capacitors can be used.
The power calculation in the table is based on three-phase balanced loads. If the load is unbalanced, it may be necessary to calculate the power of each phase separately and add them up.
To obtain a more accurate comparison table, it is recommended to collaborate with professional electrical engineers or cable manufacturersRestaurant Equipment to customize calculations based on specific application scenarios and conditions.
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