Causes of Moisture in Electrical Service Panels

In electrical inspection, visual assessment of the electrical service apparatus is a vital component of the procedure followed by expert home inspectors, whose observations are quite reliable. These assessments can supply a database of overall performance of the residential electrical system components that can be important for the progress of improvements in both the parts and their linked qualifying standards.

Accredited and certified home maintenance inspectors offer a unique idea on field setbacks: in performing a comprehensive review of a building’s structures and parts, and a checker may uncover typical exterior or interactive causes of damage or decay.

In performing home inspection, one of the requirements is the uncovering of electrical panel box so the interior part of the panel can be inspected and viewed. The home inspector needs to inspect the internal electrical connections, breakers, grounding, wire type, wire size, box condition, wire condition, main breaker, and panel condition.

Water can travel down the interior of the coated electrical wire and then can enter the panel. The service wire will act like a sealed pipe bringing moisture into the panel box. If the electric meter is not tightly sealed on top where the service cable enters then it is more prone from leaks.

Maintenance personnel see in-service field instances, often before problems occur, and before failing conditions are so obvious as to come to the attention of the occupants. Various researches of component issues in service panels have focused on defects exposed after rather than before actual failures and have not considered corrosion or damage diagnosis based on a thorough examination of the entire structure and site for important factors to determine.

The corrosion and rust is mainly caused by seeping through the base of basement walls wherein the panel box is located. For instance, everyone must be aware of the danger once the service panel got wet through the wall.

Most vital sources of water and moisture entry were: through service entrance conductor cables which were old and damaged, or which were not properly sealed at meter boxes or building sidewalls; from condensation from high interior moisture levels; and from other building leaks or surface water which passed down building walls where panel enclosures were mounted.

A professional electrical contractor is necessary to fully evaluate and correct the condition. The contractor will definitely locate the source of moisture and make necessary repairs or replacements. More often the panel box and wiring is incredibly damaged and corroded, thus changing of the panel is require. Sometimes the panel box can be salvaged; at any cost the source of the moisture must be determined and solved in order to avoid worse effects

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