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Building Wire and Cable

Building wire and cable is used in the construction of almost every commercial, industrial, and residential property in the world. Most commonly known as branch circuit wiring in homes and businesses, these products carry electrical current to all external uses of power in a building or dwelling.

The Building Wire and Cable Group and Dues Center develops technical standards and guidelines, influences government affairs and trade issues, collects market data, and develops marketing programs on its products.

For more information on the section:

Scope of the 7WC-1 Building Wire and Cable Group and Dues Center

All types of building wires and cables as identified in the National Electrical Code (NEC), Underwriters Laboratories (UL) standards, Canadian Electrical Code (CE Code, Part I), Canadian Standards Association (CSA) standards, Mexican Electrical Code (NOM-001-SEDE), and Association Nacional de Normalización y Certificación del Sector Eléctrico (ANCE) standards, including:

Wire and cable that is also used as building wire includes:

Technical Activities

In 2017, the Building Wire and Cable Technical Committee is engaged in the following:

1) Developing and maintaining building wire standards and test procedures for use throughout North America in cooperation with Canadian and Mexican industry and standards developer counterparts, under the auspices of CANENA.

2) Amending UL 44 with requirements for 1000 V rated thermoset-insulated conductor Types, in accordance with the recognition of this voltage rating in the National Electrical Code effective with the 2014 edition.

3) Developing NEMA Engineering Bulletins to address proper terminating of Type MC-PCS cables, and the use of tray cable

4) Publishing training modules on Type AC and Type MC product application and proper installation, and a tutorial on electrical conductors

5) Developing Public Inputs for the 2020 National Electrical Code

6) Interaction with UL wire and cable engineers on insulation and jacketing compound issues, follow-up procedures and administrative matters

7) Interaction with NETA to impact field testing requirements for building wire

8) Interaction with the outlet box, cable fittings and LED fixture industries as needed.

Government Relations

Through NEMA, the section develops industry positions on legislative and regulatory initiatives that may affect member products, markets, and customers. NEMA's work has resulted in contributions to public policy development and in promoting competitiveness, technological progress, and public safety. On the Government Affairs homepage members can search for and e-mail federal representatives to convey opinions regarding energy policy or other issues related to the electroindustry.

NEMA Government Affairs provides specific services to its members and information in the areas of Environment, Health & Safety; Energy; and International Trade & Commerce.

Market Economics

NEMA Business Information Services (NEMA/BIS) provides market data to the public as well as to members. Activities specific to the Building Wire and Cable Section include:

- Monthly Sales Shipment Report (S-624) to all participating member companies

- Quarterly industry economic forecast to all active Section members.

For the public:

Statistics on domestic product shipments of building wire and cable are available. Data from the U.S. Census Bureau has been re-packaged to reflect the products within NEMA divisions.

For members:

Through NEMA, member companies are able to develop and implement tailored, industry-specific market and statistical programs that benefit participating companies. Reports may include:

  • Product orders and sales
  • Market forecasting
  • Shipments by trading areas
  • Channels of distribution
  • Financial and operating ratios
  • Wages and benefits
  • Foreign trade

The association also conducts economic analyses on the impact of legislation and regulations on member products, and monitors and reports on key industry market indicators. All programs comply with NEMA statistical confidentiality policies. For more information, please see Business & Economy.


Membership in NEMA is open to any firm actively engaged in the manufacture in North America of a product within the NEMA scope and for sale in the open market. Membership of foreign firms is subject to product section policies and NEMA Board of Governors approval.

NEMA operates on a fee-for-service basis. Each product section establishes its projects and activities and approves an annual operating budget. Visit our members & membership center for more information on joining.


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