Mike Dolt Enterprises
Mike Dolt Enterprises
User: jmellc, Location: Durham, NC
Asked on: Friday, April 1, 2011 at 12:36 am EDT
Answered on: Tuesday, May 14, 2024 at 3:35 am EDT
Question: I was taught years ago to run cables in crawl space as the crow flies, point A to point B. Did that for a long time. Did other things for a living, came back to electrical in 95, doing commercial. Worked with a friend 03 & 04, wanted wiring squared out. I saw jobs done that way by others too. I did as the Romans did, but while it looks nice, I can't see the extra wire usually needed to do that & the extra time. I don't get much new work but I still crow fly on rewires.What do the rest of you do?
The best practice for running cables in a crawl space depends on the specific circumstances, such as the size and shape of the crawl space, the location of obstacles, and the type of cables being installed.
Advantages of Running Cables "As the Crow Flies"
Shorter cable runs
This can save on material costs and reduce the risk of voltage drop.
Faster installation
Straight runs are easier and quicker to install than cables that need to be routed around obstacles.
Clean appearance
When cables are run in straight lines, they can create a more organized and professional-looking installation.
Disadvantages of Running Cables "As the Crow Flies"
Increased risk of damage
Cables that are run directly over supports or across joists can be more vulnerable to damage from foot traffic, rodents, or moisture.
Difficult to access and repair
If a cable needs to be accessed or repaired in the future, it can be difficult to locate and isolate it if it is buried in insulation or hidden behind obstacles.
Alternative Methods
Snake method
Cables are run along the joists and then down the walls to the outlets or devices. This method provides more support for the cables and allows for easier access for future maintenance.
Bridging method
Cables are suspended from joists using cable trays or straps. This method is ideal for areas where there are multiple cables or obstacles that need to be avoided.
Combination method
A combination of the snake and bridging methods can be used to optimize the installation based on the specific conditions of the crawl space.
Recommendations
Consider the specific circumstances
The best method for running cables will vary depending on the project.
Prioritize safety and accessibility
Ensure cables are run in a manner that minimizes the risk of damage and allows for easy access for future maintenance.
Follow code requirements
Local electrical codes may have specific requirements for running cables in crawl spaces.
Consult with a qualified electrician: If in doubt, consult with a qualified electrician who can assess the situation and recommend the most appropriate method. Flag for review