Can all residential electricians work with them?
Residential electricians work with a variety of electrical systems. Electrical wiring is a system of conductors and other devices that carry electricity. The different types of wiring used vary depending on 3 factors, purpose, quantity of electricity, and location. For instance, a home needs less power than an office block. This means that the correct wiring system will maximize energy efficiency in a safe way.
There are international standards for the types of wires used in electrical systems. This permits electricians to know what kind of wires are in a system. For instance, color coating is used identify wires for safety reasons, installation, and repairs. These colors are not the same everywhere. Brown colored wires denote a live wire in EU countries, Australia, and New Zealand. However, a black brass colored wire is used in the US and Canada.