Countries like China, Russia, Saudi Arabia (KSA), and the UAE now follow the IEC cable color codes for DC circuits. However, do not rely solely on the cable insulation colors in these regions, as electricians may still use both old and new color codes for AC and DC systems. It’s important to test with a multimeter or voltage tester to confirm the phase, neutral, as well as positive and negative wires.

The IEC DC wiring color codes are adopted from IEC AC wiring color codes based on IEC 60445:2021. These rules are applicable in the UK, EU and all other countries who follow the new IEC color codes instead of local and regional codes. The following IEC DC wiring color codes are used for Two-Wire Grounded, Two-Wire ungrounded and Three Wire grounded DC power systems.

The following tables shows the comparisons of different wire and cable color codes used in DC power circuits used by IEC and NEC.

India, Pakistan, and other countries in the subcontinent, as well as the UAE (United Arab Emirates), KSA (Kingdom of Saudi Arabia), and South Africa (also known as the “Proteas”), traditionally followed the old UK wiring color codes. These include RYB (Red, Yellow, and Blue for three-phase systems) and Red and Black for phase and neutral, respectively. Although South Africa and others have now adopted the IEC standard, these older color codes are still in use in many regions.

Three Phase 277V & 480 V AC: The following i.e. 277V and 480V AC supplies are used for industrial and high power equipment such as motors and heaters in factories and production units. BROWN = Phase 1 , Hot 1 or Line 1 “L1” ORANGE = Phase 2 , Hot 2 or Line 2 “L2” YELLOW = Phase 3 , Hot 3 or Line 3 “L3” GRAY = Neutral “N” GREEN, BARE or GREEN / YELLOW = Ground “PG” This is from your webpage

24VDCwire color codeUSA

Iecwire color

Both Aussies and Kiwis are using the same wiring color codes according to AS/NZS 3000:2018 for single phase and three phase power circuits followed by IEC..

Russia was following the same wiring color codes as China before but they adapted the IEC with little bit changes i.e. in a three phase system, they may use purple or gray color instead of gray in IEC. As things are little bit changed in Russia, so one must follow the tester before going in the mess.

The first orders have already rolled in from Germany's BioNTech, whose vaccine developed with US giant Pfizer is already being administered in some countries, and from CureVac, another German company whose vaccine candidate is in final stage trials.

In this tutorial, we will discuss the different wiring color codes for AC (single-phase and three-phase) and DC power systems according to the NEC and IEC standards. Many countries, including the UK (BS-7671), China, Russia, Hong Kong, Singapore, Ukraine, Belarus, Kazakhstan, Turkey, Israel, South Africa, Argentina, Malaysia, Saudi Arabia (KSA), and the UAE, have adopted IEC wiring color codes. We will also cover the wiring color codes used in the US, Canada, UK, EU, Australia, New Zealand, Russia, China, Japan, India, Pakistan, and South Africa.

Final Note: You have now learned the wiring color codes for both DC and AC (single-phase and three-phase circuits) according to IEC, NEC, and other regional standards. If you encounter any unusual wiring color codes or want to add those from your country or region, feel free to share them in the comments below, and we’ll update this post accordingly. Thank you!

Prior to March 2004, the UK were following their own wiring color codes. These old wiring color codes are still used in the subcontinents including India, Pakistan, UAE and South Africa.

The company intends to spend 30 million euros on an additional assembly line, partly to cope with increased demand for the Covid-19 jabs.

24VDCwire color codeIEC

Some countries adapted the IEC wring codes with little bit modifications. Israel follow the IEC codes with the local practiced wiring are as follow:

There are some differences between AC and DC systems, so the wire color codes for DC differ slightly from those for AC in both NEC and IEC standards. These DC color codes are used for solar power and panels, batteries, vehicles, and other DC-powered equipment, such as computer data centers and wiring installations.

The old colors for Germany were: phases black, brown, black – neutral blue – earth yellow green. The two black phases were difficult to tell apart. The new system has brown, black, gray – neutral blue – earth yellow green For one phase brown, old sometimes black – Neutral blue – earth yellow green

"There won't be a shortage of syringes, even if we are facing a big challenge," said Otto-Philipp Braun, co-director of Almo, Germany's leading syringe manufacturer.

Keep in mind that in case of three phase supply, there is no need for neutral wire here in Japan. So don’t panic with the “3rd Line” in three phases and the common Neutral as a White color.

24 vdcWire

The following i.e. 277V and 480V AC (US) and 600V/347V (in Canada) supplies are used for industrial and high power equipment such as motors and  heaters in factories and production units.

The US National Electrical Code only mandates white (or grey) for the neutral power conductor and bare copper, green, or green with yellow stripe for the protective ground. The other colors are adopted as local practice and followed by the electricians. Thanks and regards

Electrical engineers, contractors, traders, manufacturers, and especially electricians worldwide use different wiring color codes for wire and cable installations and electrical distribution in industrial buildings or residential homes. Some of these color codes are mandatory, while others are optional. Using the correct wiring color codes is essential for identifying line, neutral, and ground wires, saving time, simplifying maintenance and troubleshooting, and ensuring the safety of those working on the system.

"We can produce 270 million syringes of one millilitre next year, and if necessary an extra 200 million from 2022," Braun told AFP.

Power cable colours

Hello I am a Electrical teacher and licenced Electrician here In Canada for the past 28 years. First of all you have an amazing website thanks for all the information you provide. On your website with the link I have given you Your say we use Brown, Orange, Yellow for 3 Phase 277V/480V We actually don’t use it for that voltage. We have 600V/347V we only use Brown, Orange, Yellow for this. When we see these colours we only think 600V / 347V it was a part of our Electrical code for quite some time. 277V / 480V is an American standard we have here in Canada at American and Japanese manufacturing plants like General motors, Ford, Honda. 600V / 347V is Canadian and uses the colours you have talked about in that phase orientation. This in no way is a complaint I just thought you would like to know the correct values.

The mandatory colors for power wiring in the National Electrical Code (NEC) are Green, Bare, or Green/Yellow (a yellow stripe or band on green) for the protective ground (PG), and White (or alternatively Gray) for the neutral wire. However, any other colors, except those mentioned above, can be used for live (line or hot) wires. Meanwhile, the following colors are commonly adopted in local practice and used for line, neutral, and ground wires as follows.

I have a copy of the Canadian Electrical Code (CE Code not CEC that stands for the California Electrical Code) from 1990 and it is Red Black Blue. So how old is your data if our code from 31 years ago doesn’t support this paper?

0VDCwire color

As the name suggests, Japan always does weird things. The single phase supply is 100V (Line to Neutral) and Three Phase supply is 200V (3 Lines, No Neutral). For wow reaction, Check the common neutral and 3rd Phase colors. They are the same i.e. white (Read the following note after the three phase codes for explanation). For electrical wiring installations, Japanese electricians use the following wiring color codes according AGN 203 – Japanese National Electrical Distribution System:

They churn out disposable syringes 24 hours a day, seven days a week, destined for use in Germany and more than 140 other countries around the world.

This might help you find it quicker. I was looking at section on wiring color codes for high leg delta panel. It’s the panel box representation towards the end just before how to wire 120v 1phase circuit breaker. Thanks In looking up info on color of 3 phase wiring I found conidiations in a diagram depicting how a 3 pole breaker would be wired in a panel box. Two mistakes l see are a green wire shown as neutral and white as ground. And the L1 as black L2 as blue and L3 as orange probably the art department got the breaker misaligned when positioning the breaker representation.

Taking into account larger-size syringes that are also used for vaccine injections, Almo has orders for some 500 million units for 2020 and 2021.

Wirecolour codes

The plastic piston is green, matching the logo of German parent company B.Braun, a giant in the medical devices industry and still owned by the Braun family.

Similar to AC systems, the mandatory colors for grounded neutral wires are White or Gray, and the protective ground wire should be Green, bare conductor, or Green with a Yellow stripe. Any other colors may be used for hot (phase) wires. These codes apply to both AC and DC power circuits.

Canadian Electrical Code “CEC” wiring color codes are similar in practice with National Electrical Code “NEC” except that White color is used for Neutral Wire and Green or bare conductor is used for protective ground. In some cases, the 1st and 2nd phase (lines) colors are in an inverse position as compared to NEC.

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.

*Good to Know: The colors used for hot wires are not explicitly specified in the NEC-2023 or any previous editions. However, they are commonly recommended and widely used by electricians as a general practice for safety and consistency.

Three phase power in Canada 600vac and 208vac is red black blue per Canadian Electrical Code. There are no brown orange yellow colour standards in Canada.

Its main rival, US behemoth Becton, Dickinson and Company (BD), earlier this week said it had received orders for more than a billion injection devices globally as part of Covid-19 inoculation efforts.

24VDC brown blue

I know I might seam nitpickey but I was confused enough with the change that I did not know about shifting the designation of the high leg bank in 2008 from a B to a C and it’s orange now so when I saw this diagram N E C change diagram I got more confused it looks like someone in the art dep. put colors in the wrong place. I think most electricians would pick up on it pretty quick but I’m an old retired maintenance man and have really never studied the code book. I am looking to add a used 3 phase motor and wanted the colors of the wires to be correct for someone in the future to be safe. I still don’t know if it maters where the high leg goes. I think I am typical of the person searching for info you might consider having the web sight reviewed or taken of line until you do for safety sake. Thank to you for listening.

Different regions use various colors for wires and cables in AC (Alternating Current) single-phase, three-phase, and DC (Direct Current) systems, according to local codes, rules, and regulations. Some well-known standards include the NEC (National Electrical Code) used in the US, CEC in the Canada, and the IEC (International Electrotechnical Commission) standard, followed by the UK (Including BS 7671), most European countries, and nations like Argentina.

One machine moulds high-quality plastic granules into thin, one-millilitre syringes, while another spits out the pistons that fit snugly inside the cylinder and are needed to push out the vaccine.

As mentioned above, most of the Europe Union countries and UK, China, Russia, Hong Kong, Singapore, Ukraine, Belarus, Kazakhstan, Israel, Turkey, Argentina, South Africa, KSA (Saudi Arabia), UAE (United Arab Emirate) and Malaysia are following the IEC “International Electrotechnical Commission” wiring codes based on IEC 60445:2021. Keep in mind that some of the above mentioned countries such as UK, Russia & China etc. were using their own “Old wiring color codes” but now follow the IEC power circuit wire codes.

Good afternoon; I find references to the NEC Electrical Wiring Color Codes in a variety of authoritative sources. Not the least of which is your very useful website at https://www.electricaltechnology.org/ But, I am unable to locate the standard in the NEC that describes this color coding scheme. Can you help me with a citation of where in NFPA 70 (NEC) I would the description of the color coding information found on your website?