Power & Communication Vaults
Precast vaults deliver unparalleled strength, security, and long-term reliability for underground power and communication networks.
ASTM C-858, ASTM C-857
Power and Communications Vaults by NWPX Geneva are durable precast concrete structures built to meet the unique needs of underground electrical and communications infrastructure. Designed to securely house power cables, fiber-optic lines, transformers, switchgear, and junction equipment, our vaults support a wide range of dry utility applications. NWPX Geneva supplies PacifiCorp-approved electrical padvaults for projects within Pacific Power and Rocky Mountain Power service territories, helping engineers, contractors, and project owners meet utility requirements while simplifying the specification, design, and approval processes.
Manufactured in a controlled factory environment at NPCA-certified plants, NWPX Geneva precast concrete power and communications vaults are built for long-term performance under demanding site conditions. Our vaults are constructed of steel reinforced concrete and available in standard and custom sizes to accommodate specific equipment dimensions, access requirements, and utility configurations. Options include traffic-rated access hatches, lockable lids, ventilation, waterproofing, fire protection, grounding and shielding systems, and seismic or wind-load considerations. All vaults are produced in accordance with applicable ASTM and AASHTO standards and are designed to support NEC and CEC compliance for electrical utility installations.
Advantages
- Durable precast concrete construction
- PacifiCorp-approved electrical padvaults
- NEC and CEC compliant
- High load-bearing capacity
- Traffic-rated access hatches and covers available
- Protects critical power and communications equipment
- Secure access for authorized personnel
- Low maintenance
- Standard and customizable sizes
- Flexible configurations
Specifications & Drawings
We manufacture certified electrical padvaults for Rocky Mountain Power and Pacific Power service areas, incorporating all of PacifiCorp’s standard vault configurations into custom-designed vaults and pads.
| PacifiCorp Number | Description |
| ZG 501 | Padvault – Single-Phase Residential 48″x48″ OD |
| ZG 521 | Padvault – Three-Phase Transformer |
| ZG 531 | Padvault – Three-Phase Sectionalizing Cabinet |
| ZG 532 | Flat Pad – Three-Phase Transformer |
| ZG 541 | Padvault – Single-Phase Fusing Cabinet Lid |
| ZG 551 | Padvault – Three Phase Fusing Cabinet |
| ZG 532 | Padvault – 15, 25,35 kV, 600 Amp, Dead-Front Switchgear |
| ZG 571 | Padvault – Metering Cabinet Lid |
| ZG 616 | Padvault – 4′ by 6′ (48″ x 72″) Short Base |
| ZG 621 | Padvault – 5′ by 7′ (56″ x 84″) for Three-Phase Transformers, Sectionalizing Cabinets and Metering |
| ZG 622 | Padvault – 7′ by 9′ (84″ x 108″) for Three-Phase 15kV Padmounted Switchgear |
| ZG 631 | Manhole – 7′ by 7′ (84″ x 84″) |
| ZG 641 | Padvault – Shallow, 7′ x 7′ (84″x84″) |
| ZG 701 | Vault – Shallow, 7′ by 12′ (94″ x 155″) |
| ZG 711 | Vault – Shallow, 7′ by 12′ (94″ x 155″) |
| ZG 715 | Sleeve – 15, 25 and 35kV, 600 Amp, Dead Front Switchgear, Padvault |
Applications
NWPX precast concrete underground electrical power and communication vaults provide secure and durable enclosures to protect essential equipment.
- Electrical Substations: Housing transformers, switchgear, and circuit breakers for power distribution and control.
- Telecommunication Infrastructure: Enclosing fiber optic cables, vaults, junction boxes, and signal amplifiers for telecommunications networks.
- Data Centers: Protecting sensitive equipment such as servers, routers, and backup power supplies essential for data storage and management.
- Street Lighting and Traffic Control Systems: Electrical components and control systems for streetlights, traffic signals, and related infrastructure.
- Utility Distribution Networks: Access points and junctions for underground electrical, communication, and cable TV lines.
- Renewable Energy Systems: Components for solar, wind, or other renewable energy generation and distribution systems are safely encased.
- Campus And Industrial Complexes: Protecting electrical and communication infrastructure in large commercial, educational, or industrial properties.
- Emergency and Backup Power Systems: Storing generators, batteries, and associated equipment for emergency power supply.
