Technical Committees

02 Rotating Machines23A Metal Cable Trays
15C Electrical Tubing and Sleeving Products23A Electrical Non-Ferrous Rigid Conduit (Aluminum, Red Brass & Stainless Steel)
17A/121A/121B Industrial Control Equipment23A Nonmetallic Cable Trays
THSC 121A WG GR General Rules23A Metal Electrical Conduit and Fittings for Conduit and Cable
THSC 121A WG1 Medium Voltage Controllers23A Nonmetallic Raceway Products and Accessories
THSC 121A WG3 Pilot and Control Circuit Devices23A-62275 Cable Ties
THSC 121A WG4 Fire Pump Controllers23B-1 Switch and Outlet Boxes
THSC 121A WG5 Terminal Blocks23BC Wiring Devices
THSC 121A WG6 Transfer Switches23E Ground Fault Circuit Interrupters
17A/121A/17C/121B WG 7 Revising IEC-Based CANENA Harmonized Standards23H Pin and Sleeve Type Plugs, Receptacles and Connectors
THSC WG8 Transfer Switches over 750V32 Low Voltage Fuses and Fuseholders
THC 121A Enclosed Switches34 Lighting Products
121A Molded Case Circuit Breakers61C Safety Requirements for Household Refrigerators & Freezers
THC 121B Busways61D Air-Conditioning and Refrigeration Equipment
17D Panelboard and Switchboard70/31 Enclosures
121B Control Centers99 Connectors
20 Electric CablesTHC69-1 EVSE and Personnel Protection
THSC 20, Flexible Cords and CablesTHC69-2 EVSE Connectors
THSC 20, Building Wire and CableTHSC 20, Wire and Cable Test Methods
THSC23A-WG1 Electrical Rigid Metal Conduit – Aluminum, Red Brass, and Stainless SteelCANENA 121A PV Circuit Breakers
THC 26 Electric WeldingTHC 22H Uninterruptible power systems (UPS)
THSC 20 Electric Vehicle Cables

THSC 23A, Metal Conduit
Mr. Les Easter
Allied Tube & Conduit, a part of Atkore International
16100 S. Lathrope Ave.
Harvey, IL 60426
Phone: (708) 225-2075
Fax: (708) 935-1419
Mr. Joel Solis
1300 N. 17th Street
Suite 900
Rosslyn VA 22209
Phone: (703) 841-3267
Fax: (703) 841-3367
To develop single trinational North American standards for electrical metal conduit which are harmonized to the maximum extent possible with applicable IEC standards, and in accordance with applicable installation codes.
UL 6, Electrical Rigid Metal Conduit – Steel
UL 6A, Electrical Rigid Metal Conduit – Aluminum, Red Brass, and Stainless Steel Standard
UL 797, Electrical Metallic Tubing – Steel
C22.2 No. 45.1, Electrical Rigid Metal Conduit – Steel
C22.2 NO. 45.2, Electrical rigid metal conduit – Aluminum, red brass, and stainless steel
C22.2 NO. 83.1, Electrical Metallic Tubing – Steel
NMX-J-534-ANCE, Tubos Metalicos Rigidos de Acero Tipo Pesado y sus Accesorios para la Proteccion de Conductores-Especificaciones y Metodos de Prueba
NMX-J-576-ANCE, Tubos Rigidos de Aluminio para la Proteccion de Conductores Electricos y sus Accesorios-Especificaciones y Metodos de Prueba
NMX-J-536-ANCE, Tubos Metalicos Rigidos de Acero Tipo Ligero y Sus Accesorios para la Proteccion de Conductores Electricos-Especificaciones y Metodos de Prueba
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