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Conversion and calculation cross section diameter
Cable diameter to circle cross-sectional area and vice versa
Round electric cable , conductor , wire , cord , string , wiring , and rope
Cross section is just a two-dimensional view of a slice through an object.
An often asked question: How can you convert the diameter of a round wire d = 2 r to the
circle cross section surface or the cross-section area A (slice plane) to the cable diameter d ?
Why is the diameter value greater than the area value? Because that's not the same.
Resistance varies inversely with the cross-sectional area of a wire.
The required cross-section of an electrical line depends on the following factors:
1) Rated voltage . Net form. (Three-phase (DS) / AC (WS))
2) Fuse - Upstream backup = Maximum permissible current (Amp)
3) On schedule to be transmitted power (kVA)
4) Cable length in meters (m)
5) Permissible voltage drop ( of the rated voltage)
6) Line material . Copper (Cu) or aluminum (Al) The used browser does not support JavaScript.
You will see the program but the function will not work.
The 'unit' is usually millimeters but it can also be inches, feet, yards, meters (metres),
or centimeters, when you take for the area the square of that measure.
Litz wire (stranded wire) consisting of many thin wires need a 14 larger diameter compared to a solid wire.
Cross sectional area is not diameter.
Cross section is an area.
Diameter is a linear measure.
That cannot be the same.
The cable diameter in millimeters
is not the cable cross-section in
square millimeters.
The cross section or the cross sectional area is the area of such a cut.
It need not necessarily have to be a circle.
Commercially available wire (cable) size as cross sectional area:
0.75 mm 2 , 1.5 mm 2 , 2.5 mm 2 , 4 mm 2 , 6 mm 2 , 10 mm 2 , 16 mm 2 . Calculation of the cross section A , entering the diameter d = 2 r :
r = radius of the wire or cable
d = 2 r = diameter of the wire or cable
Calculation of the diameter d = 2 r , entering the cross section A :
The conductor (electric cable)
There are four factors that affect the resistance of a conductor:
1) the cross sectional area of a conductor A , calculated from the diameter d
2) the length of the conductor
3) the temperature in the conductor
4) the material constituting the conductor
There is no exact formula for the minimum wire size from the maximum amperage .
It depends on many circumstances, such as for example, if the calculation is for DC, AC or
even for three-phase current, whether the cable is released freely, or is placed under the
ground. Also, it depends on the ambient temperature, the allowable current density, and the
allowable voltage drop, and whether solid or litz wire is present. And there is always the
nice but unsatisfactory advice to use for security reasons a thicker and hence more
expensive cable. Common questions are about the voltage drop on wires.
Voltage drop V The voltage drop formula with the specific resistance (resistivity) (rho) is:
V = I R = I ( 2 l / A )
I = Current in ampere
l = Wire (cable) length in meters (times 2, because there is always a return wire)
= rho, electrical resistivity (also known as specific electrical resistance or volume
resistivity) of copper = 0.01724 ohmmm 2 /m (also m)
(Ohms for l = 1 m length and A = 1 mm 2 cross section area of the wire) = 1 /
A = Cross section area in mm 2
= sigma, electrical conductivity (electrical conductance) of copper = 58 S m/mm 2
Quantity of resistance R = resistance = specific resistance m l = double length of the cable m A = cross section mm 2
The derived SI unit of electrical resistivity is m, shortened from the clear mm / m.
The reciprocal of electrical resistivity is electrical conductivity. Electrical conductivity and electrical resistivity or = 1/
Electrical conductance and electrical resistance = 1/ = 1/
Electrical
conductor Electrical conductivity
Electrical conductance Electrical resistivity
Specific resistance silver = 62 S m / mm = 0.0161 Ohm mm / m copper = 58 S m / mm = 0.0172 Ohm mm / m gold = 41 S m / mm = 0.0244 Ohm mm / m aluminium = 36 S m / mm = 0.0277 Ohm mm / m constantan = 2.0 S m / mm = 0.5000 Ohm mm / m
Casinos with slot machines near me . Difference between electrical resistivity and electrical conductivity The conductance in siemens is the reciprocal of the resistance in ohms.
To use the calculator, simply enter a value.
The calculator works in both directions of the sign.
The value of the electrical conductivity (conductance) and the specific electrical resistance
(resistivity) is a temperature dependent material constant. Mostly it is given at 20 or 25C.
Resistance = resistivity x length / area The specific resistivity of conductors changes with temperature.
In a limited temperature range it is approximately linear:
where is the temperature coefficient, T is the temperature and T 0 is any temperature,
such as T 0 = 293.15 K = 20C at which the electrical resistivity ( T 0 ) is known.
Convert resistance to electrical conductance
Conversion of reciprocal siemens to ohms
1 ohm [] = 1 / siemens [1/S]
1 siemens [S] = 1 / ohm [1/] To use the calculator, simply enter a value.
The calculator works in both directions of the sign.
1 millisiemens = 0.001 mho = 1000 ohms Compressor 4 2 2 . Mathematically, conductance is the reciprocal, or inverse, of resistance:
The symbol for conductance is the capital letter 'G' and the unit is the
mho, which is 'ohm' spelled backwards. Later, the unit mho was
replaced by the unit Siemens abbreviated with the letter 'S'. Deepstyle 1 0 2 Sezonas
Table of typical loudspeaker cables Cable diameter d 0.798 mm 0.977 mm 1.128 mm 1.382 mm 1.784 mm 2.257 mm 2.764 mm 3.568 mm Cable nominal cross section A 0.5 mm 2 0.75 mm 2 1.0 mm 2 1.5 mm 2 2.5 mm 2 4.0 mm 2 6.0 mm 2 10.0 mm 2 Maximum electrical current 3 A 7.6 A 10.4 A 13.5 A 18.3 A 25 A 32 A -
Always consider, the cross section must be made larger with higher power and higher length of
the cable, but also with lesser impedance. Here is a table to tell the possible power loss . Cable length
in m Section
in mm 2 Resistance
in ohm Power loss at Damping factor at Impedance
8 ohm Impedance
4 ohm Impedance
8 ohm Impedance
4 ohm 1 0.75 0.042 0.53 1.05 98 49 1.50 0.021 0.31 0.63 123 62 2.50 0.013 0.16 0.33 151 75 4.00 0.008 0.10 0.20 167 83 2 0.75 0.084 1.06 2.10 65 33 1.50 0.042 0.62 1.26 85 43 2.50 0.026 0.32 0.66 113 56 4.00 0.016 0.20 0.40 133 66 5 0.75 0.210 2.63 5.25 32 16 1.50 0.125 1.56 3.13 48 24 2.50 0.065 0.81 1.63 76 38 4.00 0.040 0.50 1.00 100 50 10 0.75 0.420 5.25 10.50 17 9 1.50 0.250 3.13 6.25 28 14 2.50 0.130 1.63 3.25 47 24 4.00 0.080 1.00 2.00 67 33 20 0.75 0.840 10.50 21.00 9 5 1.50 0.500 6.25 12.50 15 7 2.50 0.260 3.25 6.50 27 13 4.00 0.160 2.00 4.00 40 20
The damping factor values show, what remains of an accepted damping factor of 200
depending on the cable length, the cross section, and the impedance of the loudspeaker.
Conversion and calculation of cable diameter to AWG
and AWG to cable diameter in mm - American Wire Gauge The gauges we most commonly use are even numbers, such as 18, 16, 14, etc.
If you get an answer that is odd, such as 17, 19, etc., use the next lower even number.
AWG stands for American Wire Gauge and refers to the strength of wires.
These AWG numbers show the diameter and accordingly the cross section as a code.
They are only used in the USA. Sometimes you find AWG numbers also in catalogues
and technical data in Europe.
American Wire Gauge - AWG Chart AWG
number 46 45 44 43 42 41 40 39 38 37 36 35 34 Diameter
in inch 0.0016 0.0018 0.0020 0.0022 0.0024 0.0027 0.0031 0.0035 0.0040 0.0045 0.0050 0.0056 0.0063 Diameter ()
in mm 0.04 0.05 0.05 0.06 0.06 0.07 0.08 0.09 0.10 0.11 0.13 0.14 0.16 Cross section
in mm 2 0.0013 0.0016 0.0020 0.0025 0.0029 0.0037 0.0049 0.0062 0.0081 0.010 0.013 0.016 0.020
AWG
number 33 32 31 30 29 28 27 26 25 24 23 22 21 Diameter
in inch 0.0071 0.0079 0.0089 0.0100 0.0113 0.0126 0.0142 0.0159 0.0179 0.0201 0.0226 0.0253 0.0285 Diameter ()
in mm 0.18 0.20 0.23 0.25 0.29 0.32 0.36 0.40 0.45 0.51 0.57 0.64 0.72 Cross section
in mm 2 0.026 0.032 0.040 0.051 0.065 0.080 0.10 0.13 0.16 0.20 0.26 0.32 0.41
AWG
number 20 19 18 17 16 15 14 13 12 11 10 9 8 Diameter
in inch 0.0319 0.0359 0.0403 0.0453 0.0508 0.0571 0.0641 0.0719 0.0808 0.0907 0.1019 0.1144 0.1285 Diameter ()
in mm 0.81 0.91 1.02 1.15 1.29 1.45 1.63 1.83 2.05 2.30 2.59 2.91 3.26 Cross section
in mm 2 0.52 0.65 0.82 1.0 1.3 1.7 2.1 2.6 3.3 4.2 5.3 6.6 8.4
AWG
number 7 6 5 4 3 2 1 0
(1/0)
(0) 00
(2/0)
(-1) 000
(3/0)
(-2) 0000
(4/0)
(-3) 00000
(5/0)
(-4) 000000
(6/0)
(-5) Diameter
in inch 0.1443 0.1620 0.1819 0.2043 0.2294 0.2576 0.2893 0.3249 0.3648 0.4096 0.4600 0.5165 0.5800 Diameter ()
in mm 3.67 4.11 4.62 5.19 5.83 6.54 7.35 8.25 9.27 10.40 11.68 13.13 14.73 Cross section
in mm 2 10.6 13.3 16.8 21.1 26.7 33.6 42.4 53.5 67.4 85.0 107.2 135.2 170.5
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Deepstyle 1 0 2 Sezonas
Deepstyle 1 0 2 0
Deutsche Version
Conversion and calculation cross section diameter
Cable diameter to circle cross-sectional area and vice versa
Round electric cable , conductor , wire , cord , string , wiring , and rope
Cross section is just a two-dimensional view of a slice through an object.
An often asked question: How can you convert the diameter of a round wire d = 2 r to the
circle cross section surface or the cross-section area A (slice plane) to the cable diameter d ?
Why is the diameter value greater than the area value? Because that's not the same.
Resistance varies inversely with the cross-sectional area of a wire.
The required cross-section of an electrical line depends on the following factors:
1) Rated voltage . Net form. (Three-phase (DS) / AC (WS))
2) Fuse - Upstream backup = Maximum permissible current (Amp)
3) On schedule to be transmitted power (kVA)
4) Cable length in meters (m)
5) Permissible voltage drop ( of the rated voltage)
6) Line material . Copper (Cu) or aluminum (Al) The used browser does not support JavaScript.
You will see the program but the function will not work.
The 'unit' is usually millimeters but it can also be inches, feet, yards, meters (metres),
or centimeters, when you take for the area the square of that measure.
Litz wire (stranded wire) consisting of many thin wires need a 14 larger diameter compared to a solid wire.
Cross sectional area is not diameter.
Cross section is an area.
Diameter is a linear measure.
That cannot be the same.
The cable diameter in millimeters
is not the cable cross-section in
square millimeters.
The cross section or the cross sectional area is the area of such a cut.
It need not necessarily have to be a circle.
Commercially available wire (cable) size as cross sectional area:
0.75 mm 2 , 1.5 mm 2 , 2.5 mm 2 , 4 mm 2 , 6 mm 2 , 10 mm 2 , 16 mm 2 . Calculation of the cross section A , entering the diameter d = 2 r :
r = radius of the wire or cable
d = 2 r = diameter of the wire or cable
Calculation of the diameter d = 2 r , entering the cross section A :
The conductor (electric cable)
There are four factors that affect the resistance of a conductor:
1) the cross sectional area of a conductor A , calculated from the diameter d
2) the length of the conductor
3) the temperature in the conductor
4) the material constituting the conductor
There is no exact formula for the minimum wire size from the maximum amperage .
It depends on many circumstances, such as for example, if the calculation is for DC, AC or
even for three-phase current, whether the cable is released freely, or is placed under the
ground. Also, it depends on the ambient temperature, the allowable current density, and the
allowable voltage drop, and whether solid or litz wire is present. And there is always the
nice but unsatisfactory advice to use for security reasons a thicker and hence more
expensive cable. Common questions are about the voltage drop on wires.
Voltage drop V The voltage drop formula with the specific resistance (resistivity) (rho) is:
V = I R = I ( 2 l / A )
I = Current in ampere
l = Wire (cable) length in meters (times 2, because there is always a return wire)
= rho, electrical resistivity (also known as specific electrical resistance or volume
resistivity) of copper = 0.01724 ohmmm 2 /m (also m)
(Ohms for l = 1 m length and A = 1 mm 2 cross section area of the wire) = 1 /
A = Cross section area in mm 2
= sigma, electrical conductivity (electrical conductance) of copper = 58 S m/mm 2
Quantity of resistance R = resistance = specific resistance m l = double length of the cable m A = cross section mm 2
The derived SI unit of electrical resistivity is m, shortened from the clear mm / m.
The reciprocal of electrical resistivity is electrical conductivity. Electrical conductivity and electrical resistivity or = 1/
Electrical conductance and electrical resistance = 1/ = 1/
Electrical
conductor Electrical conductivity
Electrical conductance Electrical resistivity
Specific resistance silver = 62 S m / mm = 0.0161 Ohm mm / m copper = 58 S m / mm = 0.0172 Ohm mm / m gold = 41 S m / mm = 0.0244 Ohm mm / m aluminium = 36 S m / mm = 0.0277 Ohm mm / m constantan = 2.0 S m / mm = 0.5000 Ohm mm / m
Casinos with slot machines near me . Difference between electrical resistivity and electrical conductivity The conductance in siemens is the reciprocal of the resistance in ohms.
To use the calculator, simply enter a value.
The calculator works in both directions of the sign.
The value of the electrical conductivity (conductance) and the specific electrical resistance
(resistivity) is a temperature dependent material constant. Mostly it is given at 20 or 25C.
Resistance = resistivity x length / area The specific resistivity of conductors changes with temperature.
In a limited temperature range it is approximately linear:
where is the temperature coefficient, T is the temperature and T 0 is any temperature,
such as T 0 = 293.15 K = 20C at which the electrical resistivity ( T 0 ) is known.
Convert resistance to electrical conductance
Conversion of reciprocal siemens to ohms
1 ohm [] = 1 / siemens [1/S]
1 siemens [S] = 1 / ohm [1/] To use the calculator, simply enter a value.
The calculator works in both directions of the sign.
1 millisiemens = 0.001 mho = 1000 ohms Compressor 4 2 2 . Mathematically, conductance is the reciprocal, or inverse, of resistance:
The symbol for conductance is the capital letter 'G' and the unit is the
mho, which is 'ohm' spelled backwards. Later, the unit mho was
replaced by the unit Siemens abbreviated with the letter 'S'. Deepstyle 1 0 2 Sezonas
Table of typical loudspeaker cables Cable diameter d 0.798 mm 0.977 mm 1.128 mm 1.382 mm 1.784 mm 2.257 mm 2.764 mm 3.568 mm Cable nominal cross section A 0.5 mm 2 0.75 mm 2 1.0 mm 2 1.5 mm 2 2.5 mm 2 4.0 mm 2 6.0 mm 2 10.0 mm 2 Maximum electrical current 3 A 7.6 A 10.4 A 13.5 A 18.3 A 25 A 32 A -
Always consider, the cross section must be made larger with higher power and higher length of
the cable, but also with lesser impedance. Here is a table to tell the possible power loss . Cable length
in m Section
in mm 2 Resistance
in ohm Power loss at Damping factor at Impedance
8 ohm Impedance
4 ohm Impedance
8 ohm Impedance
4 ohm 1 0.75 0.042 0.53 1.05 98 49 1.50 0.021 0.31 0.63 123 62 2.50 0.013 0.16 0.33 151 75 4.00 0.008 0.10 0.20 167 83 2 0.75 0.084 1.06 2.10 65 33 1.50 0.042 0.62 1.26 85 43 2.50 0.026 0.32 0.66 113 56 4.00 0.016 0.20 0.40 133 66 5 0.75 0.210 2.63 5.25 32 16 1.50 0.125 1.56 3.13 48 24 2.50 0.065 0.81 1.63 76 38 4.00 0.040 0.50 1.00 100 50 10 0.75 0.420 5.25 10.50 17 9 1.50 0.250 3.13 6.25 28 14 2.50 0.130 1.63 3.25 47 24 4.00 0.080 1.00 2.00 67 33 20 0.75 0.840 10.50 21.00 9 5 1.50 0.500 6.25 12.50 15 7 2.50 0.260 3.25 6.50 27 13 4.00 0.160 2.00 4.00 40 20
The damping factor values show, what remains of an accepted damping factor of 200
depending on the cable length, the cross section, and the impedance of the loudspeaker.
Conversion and calculation of cable diameter to AWG
and AWG to cable diameter in mm - American Wire Gauge The gauges we most commonly use are even numbers, such as 18, 16, 14, etc.
If you get an answer that is odd, such as 17, 19, etc., use the next lower even number.
AWG stands for American Wire Gauge and refers to the strength of wires.
These AWG numbers show the diameter and accordingly the cross section as a code.
They are only used in the USA. Sometimes you find AWG numbers also in catalogues
and technical data in Europe.
American Wire Gauge - AWG Chart AWG
number 46 45 44 43 42 41 40 39 38 37 36 35 34 Diameter
in inch 0.0016 0.0018 0.0020 0.0022 0.0024 0.0027 0.0031 0.0035 0.0040 0.0045 0.0050 0.0056 0.0063 Diameter ()
in mm 0.04 0.05 0.05 0.06 0.06 0.07 0.08 0.09 0.10 0.11 0.13 0.14 0.16 Cross section
in mm 2 0.0013 0.0016 0.0020 0.0025 0.0029 0.0037 0.0049 0.0062 0.0081 0.010 0.013 0.016 0.020
AWG
number 33 32 31 30 29 28 27 26 25 24 23 22 21 Diameter
in inch 0.0071 0.0079 0.0089 0.0100 0.0113 0.0126 0.0142 0.0159 0.0179 0.0201 0.0226 0.0253 0.0285 Diameter ()
in mm 0.18 0.20 0.23 0.25 0.29 0.32 0.36 0.40 0.45 0.51 0.57 0.64 0.72 Cross section
in mm 2 0.026 0.032 0.040 0.051 0.065 0.080 0.10 0.13 0.16 0.20 0.26 0.32 0.41
AWG
number 20 19 18 17 16 15 14 13 12 11 10 9 8 Diameter
in inch 0.0319 0.0359 0.0403 0.0453 0.0508 0.0571 0.0641 0.0719 0.0808 0.0907 0.1019 0.1144 0.1285 Diameter ()
in mm 0.81 0.91 1.02 1.15 1.29 1.45 1.63 1.83 2.05 2.30 2.59 2.91 3.26 Cross section
in mm 2 0.52 0.65 0.82 1.0 1.3 1.7 2.1 2.6 3.3 4.2 5.3 6.6 8.4
AWG
number 7 6 5 4 3 2 1 0
(1/0)
(0) 00
(2/0)
(-1) 000
(3/0)
(-2) 0000
(4/0)
(-3) 00000
(5/0)
(-4) 000000
(6/0)
(-5) Diameter
in inch 0.1443 0.1620 0.1819 0.2043 0.2294 0.2576 0.2893 0.3249 0.3648 0.4096 0.4600 0.5165 0.5800 Diameter ()
in mm 3.67 4.11 4.62 5.19 5.83 6.54 7.35 8.25 9.27 10.40 11.68 13.13 14.73 Cross section
in mm 2 10.6 13.3 16.8 21.1 26.7 33.6 42.4 53.5 67.4 85.0 107.2 135.2 170.5
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