The roster
Listed alphabetically. NEMA says this section covers both signal cable and high-voltage utility cable, which are made on very different equipment. A row does not say which end of that range a member works at, and some members of the section are better known for connection and control hardware than for cable.
| No. | Company | Also listed under | Where to check |
|---|---|---|---|
| 01 | Atkore | NEMA profile atkore.com | |
| 02 | Cerrowire | NEMA profile cerrowire.com | |
| 03 | Champlain Cable Corporation | NEMA profile champcable.com | |
| 04 | Freeport-McMoRan | NEMA profile fcx.com | |
| 05 | Legrand, North America | NEMA profile legrand.us | |
| 06 | Nexans | NEMA profile nexans.ca | |
| 07 | The Okonite Company | NEMA profile okonite.com | |
| 08 | Phoenix Contact | NEMA profile phoenixcontact.com | |
| 09 | Prysmian Group | NEMA profile prysmiangroup.com | |
| 10 | RSCC Wire & Cable LLC | NEMA profile r-scc.com | |
| 11 | SEA Wire and Cable, Inc. | NEMA profile sea-wire.com | |
| 12 | Service Wire Company | NEMA profile servicewire.com | |
| 13 | Southwire Company, LLC | NEMA profile southwire.com | |
| 14 | Tatung Electric Company of America | NEMA profile tatungelectric.com | |
| 15 | Weidmüller, Inc. | NEMA profile weidmuller.com | |
| 16 | Xignux Corporativo | NEMA profile xignux.com |
Read this before using the list
Utility cable is bought against the utility’s own specification and an approved-manufacturer list the utility keeps. This sheet is a way to find names, not a substitute for that list.
Three products under one heading
Low-voltage power and control cable is the workhorse of industrial wiring: two to dozens of insulated conductors under a common jacket, laid in cable tray or pulled in conduit, rated 600 V or 2000 V. Instrumentation cable carries signals, not power, so its pairs and triads are shielded, individually or overall, to keep noise out. Medium-voltage cable, from 5 kV up, is a different object: the insulation is extruded together with semiconducting layers in a single clean pass, under a metallic shield, because at those voltages a void the size of a grain of dust becomes the place the cable eventually fails.
The standards a specification will cite
| Product | Construction standard | Listing standard |
|---|---|---|
| Power cable to 2000 V | ICEA S-95-658 / NEMA WC 70 | UL 1277 for Type TC tray cable |
| Control and instrumentation | ICEA S-73-532 / NEMA WC 57 | UL 1277; UL 2250 for Type ITC; UL 13 for Type PLTC |
| Shielded power, 5 to 46 kV | ICEA S-93-639 / NEMA WC 74 | UL 1072 for Type MV |
| Utility distribution cable | The ICEA utility standards, with AEIC specifications | The utility’s own approval |
The pairing matters. The ICEA and NEMA document says how the cable is built and tested. The UL standard is what a testing laboratory lists it to, and the listing is what lets an inspector accept it under the National Electrical Code. A cable can meet one without the other. Revisions change both, so cite the edition.
Checking a power or control cable maker
- Ask for the listing by cable type. A company listed for tray cable is not thereby listed for medium-voltage cable. Search the laboratory’s directory for the type on your drawing.
- Ask for the flame test the installation needs. Tray cable is rated by vertical-tray flame tests, and some sites require a more severe one than the basic listing.
- For medium voltage, ask for production test reports. Every shipping length is tested for partial discharge and withstand voltage, and the report is tied to the reel.
- Ask how the price moves with copper. Quotes for heavy cable usually carry a metal adjustment clause. Two quotes are comparable only when the copper basis is the same.
- Confirm lengths and reels. Maximum continuous length, reel dimensions and weight decide whether a pull can be made without a splice.
The general method is in Qualifying a wire manufacturer, and the families are compared side by side in Wire types, and who makes which.