If you’re installing a relay rack you should be installing a concrete floor kit with it, especially if your in a earthquake zone. Let’s go over what’s included in this type of kit.
Here’s a look at the bottom of your relay rack where the bolts get put through.
You will need to use a hammer drill to fit the drop sleeves into that concrete.
As you can tell it’s very straight forward, you need just a little elbow grease to drop that sleeve with the hammer drill. For more information about this concrete floor kit and to order online visit Discount-Low-Voltage.com