Why Proper Switchgear Choice is Vital in South African Industry

When it comes to powering industrial operations, mining sites, manufacturing plants, or municipal grids, your switchgear plays a critical role. It’s the gatekeeper that controls, protects, and isolates electrical equipment—keeping systems running safely and efficiently.

Choosing the right type of switchgear—HT (High Tension) or LT (Low Tension)—is not just a technical decision. It directly impacts safety, reliability, and cost.

What is HT (High Tension) Switchgear?

HT switchgear handles electrical equipment operating at voltages above 1000 volts. Common voltage levels in South Africa for HT systems include 11kV, 22kV, and 33kV.

🔹 Used in power generation plants, substations, and large-scale industrial facilities
🔹 Designed to manage and protect high-voltage circuits
🔹 Built to withstand greater electrical stress and environmental conditions

What is LT (Low Tension) Switchgear?

LT switchgear is used for equipment operating at voltages up to 1000 volts.

🔹 Found in commercial buildings, factories, smaller industrial plants, and residential complexes
🔹 Manages lower voltage distribution systems
🔹 Provides essential protection against faults like overloads and short circuits

When and Where to Use Each

✅ Common HT Applications:

• Power transmission lines

• Substations

• Large industrial and mining operations

✅ Common LT Applications:

• Internal power distribution in buildings

• Factory machinery

• Commercial equipment

Risks of Choosing the Wrong Type

The wrong switchgear can lead to:

• Electrical failures that put people and property at risk

• Reduced system efficiency and higher energy costs

• Non-compliance with South African electrical safety standards

• Costly upgrades down the line

Maintenance Needs and Costs Compared

👉 HT Switchgear:

• Requires specialised skills for maintenance

• Regular inspections, cleaning, and testing of insulation, breakers, and relays

• Typically higher cost due to complexity

👉 LT Switchgear:

• Easier to maintain but still essential to inspect regularly

• Checks for loose connections, worn parts, and proper operation

• Lower cost but still critical for safety

Why SWITCHGEAR Offers Both – And What That Means for You

At SWITCHGEAR, we provide expert supply, installation, repair, and maintenance of both HT and LT switchgear systems. Our team understands the unique challenges of each, ensuring:

• Correct selection for your site’s needs

• Full compliance with electrical regulations

• Reduced risk of failure or downtime

Need Help Choosing or Servicing Your Switchgear? Call Us

📞 083 625 4181 / 083 625 4182
📧 switchgearoil@gmail.com

✅ Master Installation Electrician certified
✅ Full HT & LT switchgear solutions across Mpumalanga and South Africa

SWITCHGEAR – The Right Gear, The Right Support.