How big should a substation foundation be?

Common sizes for substation foundations range from 24 inches to 60 inches in diameter, in 6-inch increments. Drilled shafts above 84 inches in diameter are typically installed in 12-inch increments with a maximum diameter of 120 inches available for extreme substation applications.

Does a substation require a foundation?

Substations, while often placed on poor soils due to land prices and availability, and location of electric lines, do require foundations to ensure their stability. Most problems with substation design arise from below the surface.

What are the different types of foundations for substation structures & equipment?

The various types of foundations for substation structures and equipment include drilled shafts (augered piers), spread footings, piles, slabs on grade, rock anchors, and direct embedment for wood or concrete poles.

Do foundations groundworks install substation bases?

Foundations groundworks regularly install the groundworks for substation bases. We can work alongside an appointed earthing team or we can supply the earthing through our partners. You have probably found this page as you are either weighing up the options of going direct with either UKPN or SSEN or you have committed to them already.

How do you determine foundation type in power delivery projects?

When determining foundation type in power delivery projects, six factors are commonly considered: Foundation considerations for transmission lines, distribution lines and substations must begin early in the project. Within reason, all structure locations should be drilled and tested to discover conditions that will affect the designs.

Is a block foundation more expensive than a poured foundation?

However, in some areas where the cost of labor is low and the distance needed to deliver ready mix is far, then a block foundation might be less expensive. The amount of concrete needed will also be a factor for a poured foundation. Concrete costs an average of $137 per cubic yard, but that varies by location and vendor.