Ensure Reliability, Prevent Downtime
At Independent Testing Agency, we specialize in both medium-voltage switchgear and low-voltage (480V) switchboard testing. Our acceptance and maintenance testing services are performed across all major manufacturers to help reduce unplanned outages, improve safety, and extend the lifespan of your electrical infrastructure.
Comprehensive Testing, Inspection & Cleaning
We begin with a thorough visual inspection of all insulating components to identify early signs of:
- Electrical distress
- Tracking
- Corona discharge
- Thermal heating
All enclosures are cleaned and inspected. Busbars, connections, and splices are examined for signs of overheating, and connections are re-torqued to ensure optimal performance and electrical integrity.
Circuit Breaker Testing Services
As a critical part of your electrical protection system, circuit breakers must operate quickly and reliably during a fault. ITA performs comprehensive circuit breaker testing to verify proper function and identify early signs of wear or failure. Our services include:
- Insulation resistance testing
- Contact resistance testing
- Breaker timing analysis
- Trip function verification
- Mechanical operation and lubrication checks
- Primary and Secondary Injection Testing
⚠️Breaker failure can lead to catastrophic system damage and safety hazards. Regular testing helps ensure they perform when it matters most.
Ground Resistance Testing Experts
Your electrical system is only as safe as its grounding system. Poor grounding can lead to equipment failure, erratic operation, and shock hazards. Independent Testing Agency is a recognized expert in ground resistance testing—a critical component of any comprehensive electrical maintenance plan.
We use state-of-the-art equipment to:
- Measure ground resistance and continuity
- Evaluate ground grid integrity
- Identify corrosion, loose connections, and deteriorated conductors
- Ensure compliance with IEEE and NEC standards
🌍Proper grounding is essential for personnel safety and equipment protection during fault conditions, lightning events, and transient overvoltages.
Critical Electrical Testing Procedures
We perform a series of advanced electrical tests to evaluate equipment health and prevent failure:
- Insulation Resistance Testing – Detects the presence of moisture, contamination, or insulation breakdown
- AC Overpotential Testing – Assesses the insulation’s dielectric strength
- Contact Resistance Testing – Identifies poor mating surfaces and pivot points, which can lead to localized heating and reduced current-carrying capacity
🔍These tests provide actionable insight into the condition of your switchgear and allow for corrective action before failure occurs.
Why It Matters
- Low insulation resistance can result in short circuits
- High contact resistance causes inefficient operation and localized heat damage
- Faulty grounding increases risk of electric shock and fire
- Lack of preventive maintenance leads to avoidable downtime and safety issues
A comprehensive switchgear and protective device maintenance program, including ground resistance testing, is essential to optimizing system reliability and safety. Regular testing and inspection reduce operational risk, improve system reliability, and help you stay compliant with safety standards such as NETA and NFPA 70B.
Schedule Your Switchgear & Breaker Testing Today
Don’t wait for failure to find out there’s a problem. Let Independent Testing Agency help you stay ahead with expert testing and maintenance for your switchgear and switchboards.