Contact Resistance Test Service

Contact Resistance Test Service in Bangladesh

In electrical power systems, even a very small resistance at connection points can create serious problems. Loose, corroded, or degraded contacts may look normal from the outside, but internally they can cause overheating, power loss, nuisance tripping, and in extreme cases, fire or equipment failure. This is why Contact Resistance Testing (CRT) is a critical maintenance and commissioning activity for industrial and utility electrical systems.

In Bangladesh, where electrical networks operate under high load, humidity, and continuous service conditions, regular Contact Resistance Test Service is essential to ensure system reliability and safety. Pico Labs Limited provides professional Contact Resistance Test Service in Bangladesh, using advanced testing equipment and engineering expertise to support industries, substations, and critical infrastructure.

What Is Contact Resistance Testing?

Contact resistance testing is the process of measuring the electrical resistance at joints, contacts, and connections in electrical equipment. This resistance is typically very small (measured in micro-ohms), but even a slight increase can lead to:

• Excessive heat generation
• Voltage drop and power loss
• Reduced equipment efficiency
• Accelerated aging of contacts

The test is commonly performed using a micro-ohmmeter, which injects a high test current and accurately measures resistance across contacts.

Why Contact Resistance Testing Is Important

From an engineering and maintenance perspective, contact resistance increases due to:

• Oxidation and corrosion
• Mechanical wear and tear
• Loose or improperly tightened connections
• Aging of contact materials
• High fault or load currents

In Bangladesh’s industrial environment, these factors are intensified by heat, humidity, dust, and continuous operation. Without regular testing, contact degradation may remain undetected until a failure occurs.

Contact resistance testing helps engineers:

• Identify hidden defects early
• Prevent overheating and arc faults
• Ensure reliable current flow
• Extend the life of electrical equipment

Equipment Covered Under Contact Resistance Testing

Pico Labs Limited performs contact resistance tests on a wide range of electrical assets, including:

• Circuit breakers (LV, MV, HV)
• Switchgear panels and MCCs
• Busbars and busbar joints
• Isolators and disconnectors
• Transformer connections
• Cable joints and terminations

Each test is conducted according to manufacturer recommendations and international standards.

Contact Resistance Test Services by Pico Labs Limited

Pico Labs Limited delivers end-to-end CRT services tailored to industrial and utility requirements.

1. Commissioning Contact Resistance Test

Before energizing new installations, we verify that all contacts and joints meet acceptable resistance limits, ensuring proper installation quality.

2. Preventive & Periodic Testing

Routine contact resistance testing helps track gradual deterioration and supports condition-based maintenance planning.

3. Diagnostic & Troubleshooting Testing

In cases of overheating, abnormal voltage drop, or repeated tripping, CRT helps pinpoint faulty connections quickly and accurately.

4. Post-Maintenance Verification

After tightening, cleaning, or replacing contacts, we re-test to confirm corrective actions were effective.

Testing Standards and Methodology

Our testing methodology follows internationally recognized standards such as IEC and IEEE guidelines. The process typically includes:

• Visual inspection of contacts
• Proper isolation and safety checks
• Injection of high DC test current
• Stable resistance measurement
• Comparison with reference or historical values
• Clear documentation and reporting

Because Pico Labs Limited maintains a wide range of electrical testing equipment, CRT can be integrated with insulation testing, thermographic inspection, and power quality analysis for deeper system insight.

Benefits of Contact Resistance Testing

• Improved Electrical Safety – Reduces risk of overheating and fire
• Higher System Reliability – Ensures consistent current flow
• Lower Energy Loss – Minimizes I²R losses at connections
• Extended Equipment Life – Prevents premature failure
• Supports Predictive Maintenance – Enables data-driven decisions

For industries focused on uptime and safety, these benefits are critical.

Industries We Serve in Bangladesh

Pico Labs Limited provides contact resistance testing services across multiple sectors, including:

• Power generation plants
• Transmission and distribution substations
• Industrial manufacturing facilities
• Oil & gas and energy projects
• Commercial buildings and data centers
• Hospitals and critical infrastructure

Each facility has unique operational demands, and our services are customized accordingly.

Why Choose Pico Labs Limited?

Pico Labs Limited is trusted by engineers and maintenance teams because:

• We use calibrated, high-current micro-ohm testers
• Our engineers understand real-world industrial conditions
• We provide accurate, repeatable, and traceable results
• We offer integrated electrical testing services under one roof

Our focus is not just testing, but helping clients improve system reliability and reduce operational risk.

Supporting Reliable Electrical Systems in Bangladesh

As Bangladesh continues to expand its industrial base and power infrastructure, maintaining electrical connection integrity becomes increasingly important. Contact resistance testing plays a vital role in ensuring safe power transmission and distribution.

With advanced equipment, skilled professionals, and a strong engineering approach, Pico Labs Limited supports industries across Bangladesh with dependable Contact Resistance Test Services.

Contact Resistance Test Service in Bangladesh is a key preventive and diagnostic tool for ensuring electrical safety, efficiency, and reliability. By detecting small resistance increases before they cause major failures, industries can avoid costly downtime and hazards.

With comprehensive testing capabilities and a strong understanding of industrial electrical systems, Pico Labs Limited stands as a reliable partner for contact resistance testing and overall electrical system health management.