<b>Electrical wiring</b> is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets and light fittings in a structure.
Wiring is subject to safety standards for design and installation. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric current capability, with further restrictions on the environmental conditions, such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals.
A home’s <strong>plumbing system</strong> is a complex network of water supply pipes, drainpipes, vent pipes, and more. Because plumbing is complicated and one of the costliest systems to repair or install in a home, it pays to understand how the system works.