How many straps are needed to support the conduit between two enclosures if the distance is 123 feet?

To determine the number of straps needed to support conduit between two enclosures over a distance of 123 feet, you need to refer to the relevant electrical code standards, which typically specify support requirements for various types of conduits.

For rigid metal conduit (RMC) and intermediate metal conduit (IMC), the National Electrical Code (NEC) requires support at intervals of no more than 10 feet for horizontal runs. Each run typically requires a strap at each end and additional support straps for every 10-foot segment.

In the case of a 123-foot run, you would first determine how many complete 10-foot lengths fit into that distance. There would be 12 sections of 10 feet fitting into 120 feet, leading to the requirement of 12 support locations. However, the straps must be evenly distributed along the entire run.

When calculating the number of straps needed, it's common practice to count the additional strap needed at the very beginning (start) as well as at the very end (termination). Therefore, if you have 12 lengths, the total number of straps would be one more than the number of sections.

Thus, 12 sections require 13 straps, but since support requirements often adjust based on actual distance, codes