When designing seismic restraints for mechanical and electrical distribution systems, there are exceptions that permit the system to be unrestrained. One of the exceptions that is commonly utilized by designers is what is known as “The 12” Rule”.
When designing seismic restraints for mechanical and electrical distribution systems, there are exceptions that permit the system to be unrestrained. One of the exceptions that is commonly utilized by designers is what is known as “The 12” Rule”.