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How to Bury Electrical Wire Safely in the Yard Burying electrical wire in the yard requires using the correct cable type, digging to the required depth, and obtaining an ESA permit before starting work. All underground electrical installations must be performed by a Licensed Electrical Contractor in Ontario. The work must be inspected by the […]
How Long Does Romex Wiring Last? Romex (non-metallic sheathed cable, or NM cable) is designed to last the lifetime of the building when installed correctly and not subjected to physical damage. The copper conductors themselves do not degrade under normal conditions. What does age is the plastic insulation and jacket — modern Romex uses PVC […]
How Long Does an Electrical Permit Stay Active? In Ontario, an ESA electrical permit is generally valid for one year from the date of issuance, though the Electrical Safety Authority can extend permits under certain circumstances. If the work is not completed and inspected within the permit period, the permit may lapse and a new […]
How Do You Ground an Older Home That Has No Ground Wires? Older Ontario homes wired with two-wire circuits (hot and neutral only, no ground conductor) can be brought up to acceptable safety standards using GFCI protection. The Ontario Electrical Safety Code and the Canadian Electrical Code permit the use of GFCI-protected outlets as an […]
How Do You Find a Broken Wire Underground? Finding a break in a buried electrical wire requires specialized equipment and should be performed by a Licensed Electrical Contractor. The most common method uses a time-domain reflectometer (TDR), which sends a pulse down the wire and measures how long it takes to return from the fault […]
How Do You Bond a Neutral and Ground in a Main Panel? In the main service panel (the first panel where utility power enters the building), the neutral and ground are bonded together at a single point. This bond is made using a main bonding jumper — typically a green screw, a strap, or a […]
How Deep Should a Trench Be for an Electrical Line? In Ontario, the minimum burial depth for electrical cables depends on the wiring method. Direct-buried cable (Type TECK or USE-2) requires a minimum of 600 mm (24 inches) in most residential applications. Rigid conduit or rigid metallic conduit can be buried at 450 mm (18 […]
Do I Need an Electrical Inspection When Buying an Older Home? An electrical inspection is strongly recommended when buying an older home in Ontario, especially homes built before 1980. Standard home inspections often include only a visual assessment of the electrical system — they do not open panels, test every circuit, or identify hidden wiring […]
Do I Need a Permit to Change an Electrical Outlet? In Ontario, a permit is generally not required for simple like-for-like outlet replacements — replacing a standard outlet with another standard outlet of the same type, in the same location, on an existing circuit. However, any work that involves adding a new outlet, moving an […]
Do I Need a 400-Amp Electrical Service for My House? Most Ontario homes do not need a 400-amp service. The standard residential service is 200 amps, which is sufficient for the vast majority of homes including those with electric vehicles, heat pumps, electric ranges, and electric dryers. A 400-amp service is appropriate for large homes […]
