HT and LV Electrical Distribution Services

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We consider ourselves to be a partner with our clients throughout the entire project, from the initial design thoughts to the final completion. We aim to document all critical features of an engineering design in order to avoid surprises later in the project. Working with installing contractors is critical to ensuring the constructability of our design. 


We have extensive experience ranging from small office renovations to high-rise buildings and entire college campuses, allowing us to assist our clients in finding the best solution for their specific needs. We take delight in sharing the information we obtain from various market sector efforts. And, when faced with project obstacles, we call on our extensive experience. 


HT and LV Electrical Distribution Services 


A High Transmission (otherwise known as High Voltage) power distribution system is commonly abbreviated as HT (or HV). In contrast, a Low Voltage (otherwise known as Low Tension) power distribution system is abbreviated as LV (or LT).


The estimated power supply for a single-phase LV is around 230 Volts and for a three-phase connection, it is around 400 Volts.


The HV distribution system, on the other hand, may reach up to 11 kilovolts (kV) or 33 kV, making it ideal for bulk power buyers such as manufacturing industries, hostels, large offices, and institutions.


More information about HV and LV power distribution systems can be found in this article. 


High Tension (HT) and Low Voltage (LV) comparison table.


Our M&E Consultant Solutions


As M&E consultants, our solutions for HT and LV include:

• HT/ LV electrical distribution.
• Switchgear design.
• Transformer design.
• Detail load calculation.
• Single Line Diagram (SLD).
• Voltage drop calculations.
• Cable sizing.
• Authority’s Compliance, Application and Approval.
• TNB meter application and upgrading to 11 kV or 33 kV.


Perunding JW is an M&E Consulting firm based in Malaysia. If you are looking for more information or resources, reach out to our team of engineers. We will gladly assist you. Visit our homepage or call us at +603 7955 5918.

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