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National Electrical Contractors Association (NECA)

Improve professionalism and accuracy for electrical construction

The National Electrical Contractors Association (NECA) creates performance standards that are published as National Electrical Installation Standards (NEIS). These voluntary codes are ANSI-approved and dictate the performance and workmanship standards essential for different types of electrical construction. NECA standards empower you to:

  • Reduce time spent writing specifications
  • Employ workmanship control
  • Maximize excellence and quality

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Mar 28

Water Velocity Calc.

How would I calculate the velocity in individual .5" circuits exiting a water manifold with a 2" line supplying the manifold that has a GPM of 160?

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