While it may seem logical to protect Romex by running it through PVC conduit, it’s actually not the best practice. Here’s why:
Firstly, Romex is already designed and approved to be used without conduit. It’s manufactured to meet the safety requirements of the National Electrical Code (NEC) for use as a standalone wire inside finished walls, ceilings, and floors.
Secondly, putting Romex in conduit can increase the risk of overheating. Since the outer jacket of Romex is already designed to dissipate heat, enclosing it in conduit can trap the heat generated and cause the wires to overheat, which can be a serious safety hazard.
Thirdly, using THHN wires instead of Romex in conduit provides many benefits. THHN wire is specifically designed for use in conduit, and it comes with a number of advantages, including better heat dissipation and easier installation. Additionally, using THHN wire can give you more flexibility in terms of customizing your electrical system and allows for easier upgrades or modifications in the future.
In conclusion, while it may seem like a good idea to run Romex inside PVC conduit, it’s just not the best practice. Using THHN wires in conduit provides many benefits and ensures that your electrical system is safe, efficient, and up to code.