Poor seal at house/wall penetration

Electrical · Service Size · printed page 88 (PDF page 89)

Book index entries

Poor Electrical Seal at House/Wall Penetration Water Leakage – Service Conduit or Cable Electric Service – Wires Service Entrance – Wires

Text in the illustration

service entrance conduit
floor framing
grade level
service panel
foundation wall
basement
while it is important that the conduit entry point through the foundation be well sealed when it is above grade, it is even more important below grade where soil moisture can easily enter through an improper seal

Generated explanation

The illustration shows a section through a basement foundation wall with exterior soil and wood floor framing above. A service entrance conduit descends outside the house, bends inward, and passes through the foundation below grade to a service panel inside. A callout identifies the improperly sealed conduit penetration as a route for soil moisture to enter. The annotation emphasizes that sealing is important above grade and even more critical at below-grade penetrations.