How often should switchgear be maintained?

Annual infrared scanning under load plus de-energized cleaning, torque and breaker testing on a one- to three-year cycle is a common standard. Harsh environments and critical facilities warrant the shorter interval.

Do you need to shut down the building to service switchgear?

Infrared scanning is done energized. Cleaning, torque verification and breaker testing require a planned outage, which we schedule around your operations, often nights or weekends.

Can you replace obsolete breakers?

Yes. Retrofit and replacement breakers are available for most legacy switchgear lines, and we identify the right option for your gear.

Do you provide arc flash labeling?

We coordinate arc flash studies and labeling with your engineering requirements as part of switchgear projects. Ask us about your specific compliance needs.

Low-voltage industrial switchgear lineup

ELEC-02Electrical· Union City, Alameda County

Switchgear Service in Union City, CA

Switchgear is the heart of a facility's electrical system and the equipment most facility managers know the least about, because it usually sits untouched for years. That is exactly why it fails. Golden Valley Power & Air services low-voltage switchgear and switchboards in commercial and industrial facilities across the East Bay: inspection, cleaning, infrared scanning, breaker maintenance and testing, component replacement and repair after faults.

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Sector: Commercial · Industrial
Coverage: Union City, CA
Scope: Repair · PM · Install
Residential: Not offered

We plan switchgear work around your operations with proper shutdown coordination, lockout/tagout and NFPA 70E safety practices, and we deliver reports you can hand to your insurance carrier or corporate engineering.

Switchgear Service in Union City

Original switchgear in older Union City industrial buildings is a common failure risk. We provide infrared scanning, cleaning, breaker service and repair, with planned shutdowns coordinated around your operations.

Union City facilities include industrial and warehouse buildings in the western industrial area, food processing, beverage and packaging facilities, light manufacturing and assembly operations and more. See the full Union City service area page for everything we handle locally.

Scope of work

Switchgear: what we handle

Equipment

Low-voltage metal-enclosed switchgear and switchboards, 600 V class
Main and feeder circuit breakers: molded case, insulated case and power breakers
Fused switches, bolted pressure switches and main disconnects
Bus, bus connections, insulators and enclosures
Metering, protective relays and trip units
Automatic transfer switches integrated with switchgear

Repair & troubleshooting

Failed or overheated breakers and switches
Damaged bus connections and insulators identified by inspection or infrared
Trip unit and protective relay faults and settings review
Post-fault inspection, cleaning and component replacement
Enclosure, door, interlock and hardware repairs
Metering and monitoring repairs

Maintenance

Visual and infrared inspection under load
De-energized cleaning, vacuuming and inspection of bus and connections
Torque verification per manufacturer specifications
Breaker exercise, lubrication and trip testing
Insulation resistance testing on bus and cable
Written reports with findings, photographs and recommendations

Installation & replacement

Breaker and switch replacement, including obsolete breaker retrofits
Switchgear section additions and feeder modifications
Switchgear replacement projects with utility coordination
Metering and power monitoring additions

Diagnostics

Common failures and what they mean

Fault 01

Breaker will not reset or close

Mechanism wear, tripped trip unit or a fault downstream. We test before re-energizing to avoid closing into a fault.

Fault 02

Hot bus connections on infrared scan

Loose or corroded connections that will progress to failure. Correct them during a planned shutdown, not after an outage.

Fault 03

Obsolete breakers with no replacement parts

Retrofit options exist for most legacy switchgear. We identify them before a failure forces the decision.

Fault 04

Nuisance tripping of main or feeder breakers

Trip unit settings, ground fault settings or actual overloads. Coordination review solves it.

FAQ

Frequently asked questions

Dispatch

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Preferred contact method

This is an emergencyEquipment down, temperature-critical, or power loss. For fastest response, please also call.

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Commercial and industrial facilities only. We do not provide residential service.

Nearby

Switchgear near Union City

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Dispatch · Commercial & Industrial

Switchgear down? We dispatch to commercial and industrial sites.

(408) 370-0120

Request Service Request a Maintenance Quote