Description

El-Hegaz thermo power cable (3×150 + 70) mm²: strength and reliability for major power transmission

Introduction: Cables as the backbone of strategic facilities

In national projects and industrial cities, cables are not a secondary component; they are the main arteries on which production stability and essential services depend. TheEl-Hegaz 4-core thermo copper cable, size (150 + 70) mm²is a heavy-duty technical solution designed to transmit very high electrical current over long distances while maintaining efficiency.

Choosing El-Hegaz in large sizes such as 150 mm² means relying on metal purity. At these high current levels, even small impurities in copper or weaknesses in insulation can cause wasted heat and increase fire risk. El-Hegaz addresses these requirements through established industrial manufacturing processes aimed at meeting demanding international specifications.

Chapter One: Internal engineering and structural arrangement (150 + 70)

1. Reduced-neutral cross-section philosophy

This cable uses a 3 Phases + Neutral system with an engineered distribution of conductor sizes for efficiency and manageable weight:

• Three main conductors (3×150 mm²):These cores carry the facility’s main load. The 150 mm² stranded-copper cross-section provides sufficient area for continuous current above350 Adepending on installation conditions, making it suitable for supplying large residential complexes or heavy industrial facilities.
• Reduced neutral conductor (70 mm²):In accordance with applicable engineering design criteria, the neutral conductor may be reduced in some large balanced three-phase systems. Using 70 mm² can reduce total cable weight and ease installation while maintaining safety when confirmed by the project’s load and harmonic calculations.

2. Electrolytic-copper standards (99.9% pure copper)

The strength of El-Hegaz cable begins with metal purity:

• Low resistivity:Pure red copper minimizes energy loss, helping prevent excessive cable heating and protecting insulation from premature hardening over time.
• Advanced helical stranding:The copper strands forming each core are precisely helically stranded, providing strong mechanical integrity and helping prevent strand separation when crimping copper lugs.

Chapter Two: Double “thermo” insulation technology

El-Hegaz thermo cable uses a layered protection system designed for demanding conditions:

1. Primary insulation

Each conductor—150 mm² and 70 mm²—is covered with an independent high-density PVC layer.

• Standard color coding:Standard colors are used to make the three phases and neutral easy to identify and reduce serious wiring errors at main distribution boards.

2. Outer thermo sheath

This thick black layer gives the cable its mechanical strength and external protection:

• Protection against mechanical abrasion:The sheath is designed to withstand demanding pulling through vertical risers and over metal cable trays without damage reaching the conductors.
• Chemical and environmental resistance:The sheath resists industrial oils, grease, and high humidity, making it suitable for harsh workplaces such as pumping stations and chemical plants.

Chapter Three: Critical applications for El-Hegaz 150+70 cable

1. Main distribution board (MDB) supply

The cable can be used as a strategic feeder between a main power transformer and main distribution boards in office towers and hospitals, where power continuity is critical.

2. Factories and heavy facilities

For large 380 V motors, the cable helps deliver the required startup current without excessive voltage drop that could shorten machine life.

3. Large central air-conditioning systems (chillers)

Cooling equipment in large facilities requires continuous stable power; the 150 mm² El-Hegaz cable provides the conductor capacity needed for efficient operation at elevated ambient temperatures when correctly engineered.

Chapter Four: Economic value and sustainability in 2026

Investing in El-Hegaz 150+70 cable is a smart long-term cost-saving decision:

1. Reduced energy waste:High-quality copper reduces electricity lost as heat, helping lower the facility’s monthly energy costs.
2. Extended service life:Thanks to double-insulation technology, the cable is designed for decades of service with limited maintenance or replacement requirements, reducing lifecycle infrastructure costs.
3. Protection of assets and equipment:Stable voltage delivery through El-Hegaz copper can help extend the life of expensive motors and sensitive electronic boards connected to the system.

Chapter Five: Safety and fire-protection standards

El-Hegaz thermo cable is designed withflame-retardant properties:

• If a fire occurs at the site, the cable’s outer sheath is designed not to act as a readily combustible path carrying fire between floors.
• The insulation is designed to limit smoke generation when exposed to heat, helping improve visibility and safety conditions in enclosed facilities during emergencies.

Chapter Six: Professional installation guide

To maintain the efficiency of a cable of this size, follow these engineering recommendations:

• Use copper lugs:Use a correctly sized 150 mm² copper lug and crimp it with a hydraulic crimping tool to achieve full contact and prevent overheating at the termination point.
• Observe the bending radius:Avoid sharp cable bends to protect the outer sheath and the arrangement of the internal copper strands.
• Proper ventilation:When the cable is installed on metal trays, leave adequate spacing for airflow and heat dissipation under high loads.

Chapter Seven: How to identify genuine El-Hegaz cable

• Marking:Look for clear, durable marking of the EL HEJAZ name and size (3×150+70) along the cable.
• Copper purity:The conductor should have a bright pinkish copper color, with evenly stranded filaments that are not brittle.
• Consistent insulation:El-Hegaz double insulation should have uniform thickness around the conductor, supporting consistent electrical protection.

Conclusion: El-Hegaz—the power that drives your projects safely

In conclusion,El-Hegaz 150+70 mm² thermo copper cablerepresents high performance in locally produced power cables built to international requirements. It is trusted by consultants and owners because it performs its function reliably under heavy-duty conditions. Choosing El-Hegaz means investing in stable electrical infrastructure for your project.