Utility.

Medium-voltage equipment for investor-owned, municipal, cooperative, and public power utilities — substations, primary distribution networks, and the transmission tie-ins between them.

Equipment categories
11
Manufacturers
12
Applicable standards
6

Standards.

  • IEEE C37.20

    Switchgear assemblies — metal-clad (C37.20.2) and metal-enclosed (C37.20.3) construction requirements for medium-voltage switchgear.

  • IEEE C57.12

    Distribution, power, and regulating transformers — general requirements for liquid-immersed designs, including ratings and cooling classes.

  • ANSI C57

    The ANSI designation of the C57 transformer apparatus family covering distribution and power transformers.

  • IEC 62271

    High-voltage switchgear and controlgear — the IEC standards series for switching and controlgear rated above 1 kV.

  • NESC (IEEE C2)

    National Electrical Safety Code — installation, operation, and maintenance rules for utility-owned supply facilities.

  • IEEE 1547

    Interconnection and interoperability of distributed energy resources with the electric power system.

Equipment.

5–35kV IEEE C57.12

Medium Voltage Transformers

Distribution and substation transformers stepping power between the utility system and downstream circuits.

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5–35kV IEEE C37.20

Medium Voltage Switchgear

Metal-clad and metal-enclosed switchgear sectionalizing, metering, and protecting substation and feeder circuits.

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5–35kV IEEE 404

Medium Voltage Cable Splices

Cold-shrink and heat-shrink joints extending and repairing underground primary cable runs.

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5–35kV IEEE 48

Medium Voltage Cable Terminations

Terminations controlling electrical stress at shielded-cable end points — switchgear, transformers, and apparatus bushings.

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200A / 600A IEEE 386

Loadbreak & Deadbreak Elbow Connectors

Loadbreak and deadbreak elbows landing primary cable on dead-front transformers, switchgear, and junctions.

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5–35kV IEEE C62.11

Surge Arresters

Metal-oxide arresters in distribution, intermediate, and station classes, coordinated with equipment BIL.

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5–35kV Fault location

Fault Indicators

Overhead, underground, and padmount indicators flagging the faulted section of a feeder for crews.

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MV / HV Line products

Transmission & Distribution Products

Pole-line hardware, insulators, cutouts, reclosers, and conductor for overhead and underground lines.

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15/25kV Sectionalizing

Junction Cabinets

Pad-mounted and subsurface cabinets for looping, tapping, and sectionalizing underground distribution circuits.

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5–35kV IEEE C57.13

Metering Equipment

Instrument-transformer metering — CTs and PTs scaling primary circuits for revenue billing and load monitoring.

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IEEE 837 Rods & connectors

Grounding Products

Compression and mechanical connectors, rods, and straps for substation ground grids and equipment bonding.

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FAQ.

What medium-voltage equipment do utilities use?

Utilities buy across the medium-voltage stack — switchgear, distribution and substation transformers, surge arresters, cable terminations and splices, elbow connectors, fault indicators, metering, and grounding — for substations and primary distribution networks.

The eleven equipment categories on this page cover that stack. Each links to its full category page with the manufacturers Hawk carries for it.

What standards govern utility distribution equipment?

Utility medium-voltage equipment is built to IEEE and ANSI apparatus standards such as IEEE C37.20 for switchgear and IEEE/ANSI C57 for transformers, and is installed under the National Electrical Safety Code (NESC).

The NESC governs utility-owned supply facilities — distinct from the National Electrical Code, which covers premises wiring on the customer side of the service point.

Where distributed energy resources connect to the distribution system, IEEE 1547 sets the interconnection and interoperability requirements.

Which manufacturers does Hawk carry for utility work?

Hawk MV Supply carries utility-focused manufacturers across switchgear, transformers, cable accessories, and line products — the twelve listed on this page, each linked to its full catalog.

Corporate parentage for reference: Cooper Power Systems is an Eaton brand; Elastimold and Thomas & Betts are ABB brands; Raychem is a TE Connectivity brand.

Does Hawk publish pricing for utility projects?

No. Utility equipment is configured and priced per project.

Send a specification — equipment, ratings, quantities — through Contact for a quote.

Sourcing for a utility project?

Send a specification — equipment, ratings, quantities, project requirements — for a quote.

Medium-voltage equipment for electric utilities.

Electric utilities — investor-owned, municipal, cooperative, and public power — are the primary market for medium-voltage equipment. They build and maintain substations, primary distribution networks, and the transmission tie-ins between them. The equipment is built to IEEE and ANSI apparatus standards — IEEE C37.20 for switchgear, IEEE/ANSI C57 for transformers, IEEE C62.11 for surge arresters — and installed under the National Electrical Safety Code. Where distributed energy resources interconnect with the distribution system, IEEE 1547 applies.

The utility scope Hawk MV Supply sources spans the eleven categories on this page: medium-voltage switchgear and transformers, surge arresters, cable terminations, splices, and elbow connectors, fault indicators, metering equipment, junction cabinets, grounding, and transmission and distribution line products — from the twelve manufacturers listed above. Equipment is configured and priced per project: send a specification to [email protected] or through Contact for a quote.