High Voltage Testing for Safe and Reliable Operations
Tex At Site provides expert mobile high voltage testing services across New Zealand, delivering reliable on-site solutions that keep your electrical assets performing safely and in full compliance. Our focus is on ensuring accuracy, reliability, and safety, even in demanding operating conditions.
With over 20 years of industry experience, we specialise in precision high voltage testing of equipment up to 300 kV. Our mobile service supports a wide range of sectors across New Zealand, including mining, industrial operations, mechanical services, and electrical infrastructure.
New Zealand's Trusted High Voltage Testing Provider
High Voltage Equipment
Equipment We Test
All live line equipment
Hard and soft cover equipment
HV proximity indicators
Insulating gloves and sleeves
Insulating mats and blankets
Live line and operating sticks
Portable earths
Rescue kits
Truck-mounted EWP vehicles and basket liners
Tex At Site provides on-site high voltage testing across a wide range of industries, including:
Mining & Resources
Civil, Construction & Infrastructure
Manufacturing & Mechanical Engineering
Electrical Utilities & Infrastructure
Transport & Rail
Our technicians bring precision testing directly to your site—whether in remote mine camps, busy infrastructure projects, industrial facilities, railway depots, or power substations. This ensures minimal disruption, maximum efficiency, and reliable performance wherever your operations are located.
Benefits of On-Site High Voltage Testing
Regular high voltage equipment testing by Tex At Site ensures your assets are functional, compliant, and safe. Key advantages include:
Alligned with NZS standards and legislation
Accident prevention and reduced risk of near misses
Accurate asset tracking via digital databases and scheduling
Reduced downtime with on-site testing
Peace of mind knowing your equipment is safe and operational
With our mobile testing services, high voltage testing is convenient, efficient, and fully compliant.
True Mobile High Voltage Testing Across New Zealand
Skip the risks and delays of transporting equipment. Our technicians come directly to your site anywhere in New Zealand, fully equipped to deliver safe, efficient, and compliant high voltage testing on location.
Comprehensive 300 kV Testing Capabilities
We provide full-spectrum high voltage testing for a wide range of critical electrical assets, including:
- Insulating gloves, sleeves, mats, and blankets
- Hard- and soft-cover electrical equipment and live-line tools
- Operating sticks and insulated rescue equipment
- Truck-mounted EWP vehicles and basket liners
- Transformer and insulating oils
- Portable earths, HV proximity detectors, and safety kits
- Electrical test instruments and meters (calibration services included)
Cost-Effective Compliance and Reduced Downtime
Our mobile testing approach reduces equipment downtime, eliminates transport risks, and provides clear, audit-ready digital reporting. This helps your business stay compliant while maintaining operational efficiency.
Industry-Focused High Voltage Expertise
We support a wide range of New Zealand industries, including mining, civil construction, manufacturing, utilities, and transport. Our services are designed to protect critical high-voltage assets and streamline ongoing compliance requirements across all environments.
Partial Discharge Testing – Essential for HV Asset Health
Partial Discharge (PD) testing is a key component of high-voltage asset condition monitoring. PD testing identifies early-stage insulation faults before they lead to catastrophic failures.
We design PD testing schedules based on the P-to-F curve, which measures the time between potential failure detection (P) and actual functional failure (F). This approach enables timely intervention via periodic testing or continuous monitoring, depending on asset risk and operational requirements.
Types of Partial Discharge
Internal PD: Occurs within insulation voids, silent but severe, often requiring Transient Earth Voltage (TEV) detection every two years.
Surface PD: Appears on insulator surfaces, often with crackling or ozone smells. Environmental factors may accelerate damage, requiring annual ultrasonic inspections.
Corona PD: Occurs around sharp conductors in gaseous environments. Outdoors it’s usually harmless, but in enclosed spaces, it can trigger surface PD—requiring regular monitoring.
- Jacket
- Shield
- Outer Insolation
- Inner Insulation
- Insulation Voids
Why Choose Tex At Site
Tex At Site is a leading provider of mobile high voltage testing services in New Zealand, delivering reliable on-site solutions across the country.
We offer:
- On-site high voltage testing anywhere in New Zealand
Highly experienced technicians with over 20 years of industry expertise
Comprehensive asset monitoring and partial discharge (PD) testing
Reduced downtime and improved operational efficiency
Ensure your high-voltage equipment remains safe, compliant, and fully operational. Partner with Tex At Site for trusted, professional on-site testing services across New Zealand.
Book Your Service Today
Ready to bring accuracy back to your tools?
Our technicians are servicing clients across New Zealand daily — and we’d love to support your next project.
📞 Call us 0800 935 674
📩 Email us sales@texatsite.co.nzTex At Site — Precision delivered to your site, anywhere in New Zealand
