If your home needs major electrical work, such as installing an electrical cable for new service, it would be wise to obtain the services of a building inspector to ensure you are complying with all local electrical codes. The following will discuss the most typical requirements for home electrical systems.
Local and National Codes
Licensed electricians rely on the National Electrical Code (NEC). It is a massive compilation detailing the national codes for residential and commercial wiring. The most economical way to access it is through your local public library.
The building departments of local municipalities often revise the NEC, and you must comply with their modified codes. Even neighboring towns have different codes. This is why it makes sense to request a local inspector to review and approve your wiring plans prior to starting a project.
When your home’s existing wiring is not in compliance with local codes most likely the local building department won’t require you to make modifications. For the most part, only new electrical work must be up to current code. However, if it’s determined that faulty or old wiring is making your home unsafe, it should be replaced. A major remodeling project may result in being required to make electrical modifications throughout a home in order to meet current codes.
Loading and Grounding Circuits
There are two important considerations when installing a new service. The first is ensuring it will not overload a circuit. The second is making sure that every receptacle and appliance is safely grounded.
Local codes will likely include the requirement of grounding both switches and light fixtures. This will provide protection against shock or electrocution in the event a wire is loosened or a device or appliance malfunctions. The local codes will set forth the approved method for grounding.
Part 2 will discuss Typical Code Requirements.
Electrical Services You Can Trust
Founded in 1991 and serving Maryland, Virginia, and D.C., where we are licensed and insured, Meyer Electrical Services provides home and commercial electrical services you can trust, including:
• Standby Generator Installation
• Panel Upgrades (Heavy-Ups)
• Electrical Vehicle Charging Stations
• Structured Cabling
• Circuit Breaker Replacement
Based in Bethesda, our team proudly serves all of Montgomery County. Receive a free consultation for custom electrical work today by calling (301) 941-1400.