For long installations of PVC conduit, are expansion joints necessary?
A. Expansion joints allow the conduit to expand and contract with change in temperature. They are required when the anticipated temperature change for the installation will exceed 25F (14C). Using expansion joints in long conduit runs reduces the chance of separation of joints and exposure of wiring. Q. For outdoor electrical, should I use the Kraloy or Kwikflex system? A. For power outlet and switch boxes where connections are likely to be permanent, the rigidity of Kraloy is the system of choice for most installers. Kwikflex is preferred when connecting to pool and spa motors, air conditioners, generators, etc.anywhere a flexible connection is required. Q. As a homeowner, where would I use Kwikon? A. Kwikon is a flexible PVC conduit system known as ENT (Electrical Nonmetallic Tubing) which is primarily used in commercial construction for protection of communication, fire alarm and power cabling. Homeowners find Kwikon useful for the rough-in of data, voice, sound, security and cable
