DC Wire Size Calculator

DC wire length:

The type of wire this is mainly designed to be used with the direct present day or in DC circuits is called the DC wire. The direct cutting-edge flows in one route. A DC wire is particularly utilized in diverse digital gadgets, automobile systems, and within the installation of solar panels. these wires are available in numerous sorts and sizes. it is essential to select the proper type and length to have finest overall performance. below we have cited a few key elements which you should recollect whilst buying the DC twine:

• Wire Gauge (AWG): It's the quick shape of yank twine Gauge that defines the size of the cord. meanwhile, a smaller AWG approach a massive diameter wire.
• Voltage Rating: pick the right voltage score to make certain the safety
• Temperature score: The most temperature restrict that the wire can endure
• Resistance: Resistance: consider the resistance of the wire

Formulation:

\(A(m^2)= \dfrac{2 \times ρ(Ω·m) \times L(m) \times I(A)}{V_V}\)

Where,

• A is the representative of the area
• Ρ is the resistance of the conductor in ohms meters(Ω·m)
• L indicates the length in meters
• I is the modern-day in amperes
• V is the allowable voltage drop for the cord

Example:

Suppose you are given the following values:

• Conductor (ρ) = aluminum (2.826 Ω⋅m)

• Wire length (L) = 150 m

• Current (I) = 400 amp

• Source voltage (V) = 24 V
• Voltage drop (v) = 4 %

Find the 400 amp wire size for a DC/AC single-phase system.

Solution:

\(A(m^2) = \dfrac{I(A) \times ρ(Ω·m) \times L(m)}{V_v}\)

\(A(m^2) = \dfrac{400 \times 2.826 \times 10^{-8} \times (2 \times 150)}{0.04 \times 24}\)

\(A(m^2) = \dfrac{0.000338832}{0.96}\)

\(A(m^2) = 0.00035399 \, m^2\)

\(A(mm^2) = 0.00035399 \, m^2 \times 1,000,000\)

\(A(mm^2) = 353.99 \, mm^2\)

wire size Chart:

AWG #	Diameter(inch)	Diameter(mm)	Area (kcmil)	Area(mm2)
0000 (4/0)	0.4600	11.6840	211.6000	107.2193
0000 (3/0)	0.4096	10.4049	167.8064	85.0288
0000 (4/0)	0.4600	11.6840	211.6000	107.2193
00 (2/0)	0.3648	9.2658	133.0765	67.4309
0 (1/0)	0.3249	8.2515	105.5345	53.4751
1	0.2893	7.3481	83.6927	42.4077
2	0.2576	6.5437	66.3713	33.6308
3	0.2294	5.8273	52.6348	26.6705
4	0.2043	5.1894	41.7413	21.1506
5	0.1819	4.6213	33.1024	16.7732
6	0.1620	4.1154	26.2514	13.3018
7	0.1443	3.6649	20.8183	10.5488
8	0.1285	3.2636	16.5097	8.3656
9	0.1144	2.9064	13.0927	6.6342
10	0.1019	2.5882	10.3830	5.2612

FAQ’s:

What type of twine Is quality For DC current?

strong and stranded wires are excellent for both AC and DC currents.

Does DC need 2 Wires?

yes, AC and DC both have one live twine and a different twine this is grounded.