Industry — Government
Switchgear and controls delivered to specification, documented for a 30-year service life
Government projects are defined by the specification: equipment class, submittal format, testing, training and documentation are spelled out and reviewed by the owner's engineers and commissioning agents. Apex engineers low- and medium-voltage switchgear, automation and monitoring to those documents, and builds the drawing and O&M packages that the facility will still be using decades from now.
Operating realities
What makes government distribution its own discipline
Specification and submittal compliance
Federal and state specifications call out equipment class, ratings, construction features, factory tests and submittal contents in detail, and deviations require formal review. Product data, shop drawings, coordination study inputs and test plans have to match the specification section by section. A submittal returned for resubmission costs schedule that public projects rarely have.
Cybersecurity for facility-related control systems
Networked relays, meters and gateways are control system components, and owners increasingly require a documented security posture: network segmentation, role-based access, logging, hardened configurations and a component inventory. IEC 62443 concepts and the owner's own risk management framework shape the architecture. The requirements are met by design and documentation, not by a claim on a data sheet.
Long life cycles and parts support
Government switchgear routinely stays in service for 30 years or more, often longer than the OEM supports the original breakers and relays. Design choices that ease future retrofits, such as standard cell dimensions, spare positions and well-documented control wiring, pay off at mid-life. Complete as-built drawings and maintenance records are as important as the equipment itself.
Mission continuity and standby power
Courthouses, emergency operations centers, laboratories and defense facilities carry loads that cannot wait for a utility restoration. Standby generators, transfer switches and, in some cases, main-tie-main or paralleling schemes are engineered against the mission's tolerance for interruption. Testing and exercise requirements are written into the O&M program from the start.
How Apex fits
LV, MV, automation and monitoring for government
Low-voltage equipment
Switchboards and switchgear built to the section
Apex engineers UL 891 switchboards and UL 1558 low-voltage power switchgear to the specification's construction, rating and testing requirements, with submittals organized to the section numbering the reviewer expects. Metering, surge protection and ground-fault provisions follow the specified scheme.
Learn moreMedium-voltage equipment
Medium-voltage service for campuses and installations
Metal-clad switchgear at 15 kV class serves campus and installation distribution, with metal-enclosed load-interrupter switchgear applied where the specification calls for fused switches at transformer primaries. Arc-resistant construction and remote operation are provided where specified.
Learn moreAutomation & controls
Transfer, generator and building system interfaces
ATS and generator paralleling controls, main-tie-main logic and interfaces to the building automation or utility monitoring system are engineered against the specified sequence of operations. Every automatic function is documented so the commissioning agent can verify it and facilities staff can operate it.
Learn moreMonitoring & analytics
Metering, logging and secure remote access
Revenue-grade and power-quality metering, breaker status and event logs are collected on a segmented OT network with access controls and logging that match the owner's security plan. Condition data feeds the facility's maintenance program; recommendations are presented to the operator, not acted on automatically.
Learn moreTypical equipment
What a government one-line usually contains
- 480 V UL 891 service-entrance switchboards with utility and owner metering
- 480 V UL 1558 low-voltage power switchgear for critical facility distribution
- 15 kV class metal-clad switchgear for campus and installation distribution
- Metal-enclosed fused load-interrupter switchgear at transformer primaries
- Automatic transfer switches and generator paralleling controls for mission loads
- Hardened switchgear communications gateways with role-based access and logging
- Power-quality and revenue-grade metering integrated with facility monitoring
- As-built drawing packages, O&M manuals and operator training materials
Codes and standards that commonly apply
Specifications govern
- Switchboards are typically listed to UL 891, low-voltage power switchgear to UL 1558 and automatic transfer switches to UL 1008; medium-voltage switchgear generally follows IEEE C37.20.2 or C37.20.3. The specification section for each equipment type governs.
- Control system security requirements on government projects commonly reference IEC 62443 concepts alongside the owner's own risk management framework; the contract documents define what applies to the switchgear network.
- Installation requirements commonly follow the NEC as adopted by the jurisdiction, with emergency and standby systems under Articles 700, 701 and 708 where the facility classification requires; the engineer of record and the authority having jurisdiction govern.
Questions we hear
Frequently asked
+How does Apex handle submittals against a detailed government specification?
Submittals are organized section by section to the specification, with product data, shop drawings, ratings and test plans cross-referenced to the paragraph they satisfy, and any proposed deviation identified explicitly for the reviewer. Coordination study inputs and factory test procedures are included where the section requires them. The goal is a first-pass review, since resubmission cycles are where public project schedules slip.
+What does cybersecurity look like for switchgear on a government site?
In practice it is a segmented network for relays, meters and gateways; role-based accounts instead of shared passwords; disabled unused ports and services; logging of configuration changes; and an inventory of every networked component with its firmware version. IEC 62443 concepts guide the design where the owner adopts them. Documentation of that posture is delivered with the equipment so the owner's security staff can review it.
+Can equipment be designed so it is easier to modernize in 20 years?
Yes, and it costs little at the outset. Standard cell dimensions, spare breaker positions, terminal blocks for future relay and communication wiring, and complete as-built drawings and setting records make later breaker retrofills and relay upgrades far simpler. Choosing widely supported communication protocols rather than proprietary ones also keeps future integration options open.
Related engineering resources
Read next
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Cybersecurity for Digital Switchgear and Power SCADA
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NEC Requirements for Switchgear and Switchboards
The National Electrical Code (NFPA 70) sets installation requirements that shape how switchgear and switchboards are specified, laid out and labeled. This article walks through the articles an engineer meets on nearly every project, from Article 408 and working space to fault current marking, arc energy reduction and standby systems, with the reminder that the authority having jurisdiction and the adopted edition govern.
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Standards & Codes
IEEE C37 Switchgear Standards: A Working Map
The IEEE C37 family covers switchgear assemblies, circuit breakers, switches, protective relays and the definitions that tie them together. This article maps the standards an engineer meets most often, explains how they reference one another, and shows how to cite them in a specification by equipment type.
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Automatic Transfer Switches: Types, Transitions and Application
An automatic transfer switch moves a load between a normal source and an alternate source, usually a generator, and the way it makes that move decides what the load experiences. This article covers ATS construction and ratings, the three transition types, bypass-isolation and service-entrance variants, and the timing and code context that govern application.
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Apex Power Distribution · ApexPower.ai
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