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In the US, local practice typically uses Black for Phase 1 (Hot 1) or Line 1 (L1) and Red for Phase 2 (Hot 2) or Line 2 (L2). Additionally, the following wiring color codes are used in the US and Canada for two-wire grounded, two-wire ungrounded, and three-wire grounded DC power systems.
25 paź 2022 · Here’s how to tell the wire colors apart: The red wire is positive. The black wire is negative. The white wire (if present) is ground (sometimes called neutral in DC). If both wires are black but one has a white stripe, the striped wire is negative, while the plain black wire is positive.
24 sty 2023 · Finally, there is the direct current (DC) power wire colours, commonly featured in solar and battery power systems. The standard DC cable colours are as follows: Positive (non-ground) - Red; Negative (non-ground) - Black; Ground - White or grey
Black, red, and blue are used for 208 VAC three-phase; brown, orange and yellow are used for 480 VAC. Conductors larger than #6 AWG are only available in black and are color taped at the ends. US AC power circuit wiring color codes
13 paź 2022 · However, the colors red (for positive) and black (for negative) follow the grounded system coloring code. 2-Wire Ungrounded DC: (Not recommended due to safety) Positive (labeled as “L+”): Red? Negative (labeled as “L-“): Black? 2-Wire Grounded (of a Negative Grounded) DC Circuit: Positive (labeled as “L+”): Red *
For the DC circuit, red is used for positive wire (+) and black is used for negative wire (-).
Supply wires for small voltage DC often use red for positive, black for ground and blue for negative. For power installations, other systems are in use and must be adhered to. In electronics, red is usually positive power, black is ground, and the rest can be anything.
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