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That depends upon the maximum amperage expected through the cable (which generally depends upon the usage):

Lighting circuits use 1.0 mm2 or 1.5 mm2

Ring mains use 2.5 mm2

Cookers and showers use 6.0 mm2

If you are unsure, get a qualified electrician to install the cable you need (recommended).

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Q: What is the cross section of each core in 3 core electrical cable?
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What is the significance of stepped core?

A transformer's windings are pre-wound around insulated 'formers' or tubes of circular cross section. To achieve maximum flux density, the core should ideally be of circular cross-section, too. A 'stepped core', then, describes the way in which the widths of the outer laminations of a transformer's core are progressively reduced ('stepped') in order to achieve a roughly-circular cross-section.


What is the significance of CORE?

A transformer's windings are pre-wound around insulated 'formers' or tubes of circular cross section. To achieve maximum flux density, the core should ideally be of circular cross-section, too. A 'stepped core', then, describes the way in which the widths of the outer laminations of a transformer's core are progressively reduced ('stepped') in order to achieve a roughly-circular cross-section.


How to calculate cable conductor weight?

Basic calculation is: no. of cores x cross-section of one core x 9,6 = copper weight in kg/km e.g. copper weight for cable 4x2,5 = 4 x 2,5 x 9,6 = 96 kg/km This is how cable manufacturers calculate the copper weight. Pls notice that it's valid formula only for cables without screening/shielding. If you know cross-section of screening, you can add that to the formula.


What is the meaning of stacking factor of a transformer?

it s the ratio of net cross section occupied by the magnetic material to the gross cross section of the core generally, its value s between 0.5 to 0.95


Does the 1989 celiberty use an electrical heater core valve?

It does not. It is cable controlled thru a "blend door". If you are having no heat, it could be because of a clogged heater core, or the cable has came off the blend door, or the blend door control.


What is four core electrical cable use for in UK?

TO SUPPLY A BATHROOM FAN / CENNTRAL HEATING THERMOSTATWITH A CONSTANT LIVE FEED


How many square millimeters of the cross-section of a photovoltaic cable is better?

A few squares is a nominal value stipulated by the national standard, and a few squares are the user's choice of wire and cable according to the load of the photovoltaic cable. The number of squares of photovoltaic cables is a verbal term used in the renovation of hydropower construction. The number of squares of photovoltaic cables that are often said is no unit, that is, square millimeters. The square of the wire actually refers to the cross-sectional area of ​​the wire, that is, the area of ​​the circular cross-section of the wire, in square millimeters. Inexperienced people, if you want to judge the thickness (square) of the wire, you can use a vernier to measure the diameter of the wire, and then find the cross-section. If you want to judge the thickness (square) of the wire, you can use a vernier to measure the diameter of the wire, and then find the formula for calculating the cross-section: S = the square of the radius R??Γ—Ο€ (R is the radius of the wire) such as a wire with a diameter of 1.76, That is 1.76Γ·2Γ—3.14=2.76 square β‰ˆ 2.5 square, (take an approximate value). If you want to choose the size of the photovoltaic cable, you usually first calculate the current according to the power of the electrical appliance and then check the electrician's manual based on the current, which is more accurate. If it is a single-core, you can measure its diameter, and then get the radius. According to the formula of area S=radiusradius3.14, you can know the cross-sectional area of ​​the photovoltaic cable, and some wires are twisted together by a combination of multiple cores. Yes, in this way, you can't use the single-core method to calculate, you can only calculate by connecting one of the multiple wires in this wire to the single-core wire, and then multiply it by the number of strands of the wire.


What does mean of cable 2x3x70mm2?

70mm2 is the cross-sectional area of each individual core of the cable. The previous numbers may relate to the number of cores. I guess we are talking SWA here?


What is the difference between core and cord?

A cord is often the same thing as a cable or a wire, as in power cord - the cable between an electrical appliance and the wall socket. A core is something that inside, either physically in the center (like an apple core), or central in terms of importance, like the core of the emergency services(firefighters, ambulance etc) is a willingness to help people.


Do you class a twin and earth cable as a two core or a three core cable?

2


What is the Cross section of Jupiter?

The interior of Saturn is probably composed of a core of iron, nickel, silicon and oxygen compounds, surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium and finally, an outer gaseous layer


What is the difference between core flex and tech cable?

Core Flex = one conductor per cable Tech cable = 3 conductors per cable