3 Wire Plug Color Code
Nec of usa defines green green with yellow stripe bare copper for ground wire.
3 wire plug color code. Loosen each terminal screw hook the wire around it and put the screw down tightly. It is important to note that with this type of wiring there are multiple phases in place each of which will get its own color wire to make it clear what it is for those working on it. The white wire goes on the silver terminal the black wire on the brass one and the green wire on the green one. The following iec dc wiring color codes are used for two wire grounded two wire ungrounded and three wire grounded dc power systems.
For three phase electricity supply circuits will use five wires. Brown orange and. Black red and blue are used for 208 vac three phase. 3 277 480 volt ac wiring color codes in usa.
Solar power systems and many battery systems use dc power instead of ac power alternating current. The colors adopted as local practice are shown in table below. The black wire is the hot wire. Us ac 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 in principle any other colors except these may be used for the power conductors.
The outer plastic sheathing or jacket and the inner color coded wires the sheathing binds the inner wires together and its outer markings indicate the number of wires and size of wire gauge within the sheathing. This article details the following cable colour codes. Non metallic or nm 120 volt and 240 volt electrical cable come in two main parts. The white wire is known as the neutral or return wire.
Usa wiring color codes for dc supply. It becomes energized as soon as you insert the plug into a working receptacle. The color of the sheathing indicates recommended. Earth wire neutral wire live wire line 2 wire line 3 electrical wire.
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. For wires that will be 120 208 or 240 volts the following wiring color standards are used. The color code is standard in electrical wiring. The existing cable colour code for fixed electrical wiring stipulated in the singapore standard cp5 1998 code of practice for electrical installations has been amended to align with international standards such as bs 7671 and iec 60446.
When you re done join the two halves of the plug casing and tighten the screws to hold it together.