Electrical Construction & Maintenance

Code Q&A: NEC Requirements for Installing RMC Couplings and Connectors

A. The requirements for installing RMC couplings and connectors are found in Sec. 344.42. (A) Installation. Threadless couplings and connectors must be made up tight ...
Electrical Construction & Maintenance

Code Q&A: NEC Requirement for Terminals of 15A and 20A Snap Switches

Per Sec. 404.14(D)(1): "Terminals of 15A and 20A snap switches not marked CO/ALR shall be used with copper and copper-clad aluminum conductors only." These materials ...