Electrical Design - ohtldesign.com

Types of Transmission Line Towers – Detailed Guide Based on Deviation Angles and Voltage Levels

Leave a Comment / Electrical Design / OHTL DESIGN

Introduction Transmission line towers are critical components of electrical power transmission systems. Their primary function is to support overhead conductors while maintaining required electrical clearances, mechanical strength, and system reliability. The selection of an appropriate transmission tower type depends largely on terrain conditions, line deviation angle, voltage level, span length, and mechanical loading. Utilities such […]

Types of Transmission Line Towers – Detailed Guide Based on Deviation Angles and Voltage Levels Read More »

whatsapp image 2026 01 31 at 10.13.25 pm (1)

F_TR3 Phase Transposition Tower for 380 kV Overhead Transmission Lines (OHTL)

Leave a Comment / Electrical Design / OHTL DESIGN

Abstract Extra High Voltage (EHV) 380 kV Overhead Transmission Lines (OHTL) form the backbone of modern power transmission systems, especially in the Kingdom of Saudi Arabia, where long transmission corridors and high power demand dominate network planning. One of the most critical operational challenges in long EHV OHTL is phase electrical unbalance, caused by the

F_TR3 Phase Transposition Tower for 380 kV Overhead Transmission Lines (OHTL) Read More »

Scope of Works in a High-Voltage Transmission Line Project- A to Z Info

Leave a Comment / Electrical Design / OHTL DESIGN

A high-voltage transmission line project involves a coordinated sequence of activities that transform engineering designs into a fully operational power transmission system. The scope of works defines all tasks required to execute the project safely, efficiently, and in compliance with applicable technical standards. These works generally include civil construction, transmission line erection, communication system installation,

Scope of Works in a High-Voltage Transmission Line Project- A to Z Info Read More »

Abbreviations & Full Forms (Transmission Line Project Context)

Leave a Comment / Electrical Design / OHTL DESIGN

🔹 Project & Contractual Milestones 🔹 Design & Engineering 🔹 Electrical & Transmission Line 🔹 Structural & Civil Engineering 🔹 Software & Tools 🔹 Documentation & Management 🔹 Miscellaneous / Common Technical Terms

Abbreviations & Full Forms (Transmission Line Project Context) Read More »

Communication Works in High Voltage Substation Projects

Leave a Comment / Electrical Design / OHTL DESIGN

1. Introduction In modern high-voltage transmission and substation projects, communication systems are a critical part of power system operation. They support: To achieve reliable communication over long distances and within substations, optical fiber communication is widely used. The most common arrangement includes: 2. Overall Communication System Concept The communication network in a power transmission project

Communication Works in High Voltage Substation Projects Read More »

whatsapp image 2026 01 12 at 10.11.43 pm

Safety Culture in Saudi Arabia: A Comprehensive Study and Practical Recommendations

Leave a Comment / Electrical Design / OHTL DESIGN

Introduction: Why Safety Culture Matters in Saudi Arabia Saudi Arabia is undergoing one of the most ambitious economic and industrial transformations in its history. Driven by Vision 2030, the Kingdom is rapidly diversifying beyond oil and gas into construction, manufacturing, infrastructure, renewable energy, and advanced industries. With this unprecedented growth comes a critical responsibility: protecting

Safety Culture in Saudi Arabia: A Comprehensive Study and Practical Recommendations Read More »

“New Year Special OHTL Quiz – Conducted by OHTL Design” 🎉

7 Comments / Electrical Design / OHTL DESIGN

NEW YEAR 2026 OHTL Quiz 🥳🥳🥳🥳 Start Quiz Time Left: 30:00 Submit Quiz Thank you for participating in this OHTL Quiz. For more fun keep visiting www.ohtldesign.com

“New Year Special OHTL Quiz – Conducted by OHTL Design” 🎉 Read More »

Link Loss Budget in OPGW: Complete Technical Guide with Practical Calculation Example

Leave a Comment / Electrical Design / OHTL DESIGN

Introduction In modern power transmission systems, Optical Ground Wire (OPGW) is the backbone of protection, control, and communication. It carries critical data for SCADA, protection relays, and grid monitoring while simultaneously serving as a shield wire against lightning. For any OPGW communication system to perform reliably, one calculation is absolutely essential: The Link Loss Budget

Link Loss Budget in OPGW: Complete Technical Guide with Practical Calculation Example Read More »

Complete Guide to OPGW Testing: Composite, Sample, Fiber, and Field Acceptance Tests Explained

Leave a Comment / Electrical Design / OHTL DESIGN

Introduction: Why OPGW Testing Matters More Than Ever Optical Ground Wire (OPGW) has become an essential component of modern power transmission networks. It performs two critical functions simultaneously: Because OPGW operates in electrically harsh environments while also supporting sensitive optical fibers, it must meet strict mechanical, electrical, and optical performance standards. Any failure in testing

Complete Guide to OPGW Testing: Composite, Sample, Fiber, and Field Acceptance Tests Explained Read More »

Sample Calculations for Selecting the Size of Copper-Clad Steel Counterpoise Conductors

Leave a Comment / Electrical Design / OHTL DESIGN

Proper sizing of counterpoise conductors is critical for ensuring grounding efficiency and lightning/fault protection in transmission lines. This article provides a detailed, step-by-step explanation of sample calculations for determining the required size of Copper-Clad Steel (CCS) counterpoise conductors, based on the Transmission Engineering Standard TES-P-122.10. What is a Counterpoise Conductor? A counterpoise conductor is a

Sample Calculations for Selecting the Size of Copper-Clad Steel Counterpoise Conductors Read More »