Typically, overhead power lines are the initial preference for power supply installation due to their affordability and straightforward installation process. Nevertheless, underground power installation is progressively garnering attention due to its robustness and long-term benefits.
Understanding Underground Power Installation
Underground power installation involves the connection of underground service wires to the primary supply line or pole for transmitting electricity to the property. Unlike overhead power lines, no visible wires or cables are above ground. Even the protective feeders are positioned underground. This approach shields the power cables from adverse weather conditions such as intense storms and winds. It also safeguards them against damage or entanglement caused by tall vehicles or equipment mishaps.
Common Scenarios for Underground Installation
- Regulatory Compliance: In cases where overhead cables violate local regulations or specifications, underground installation offers a compliant alternative.
- Space Constraints: Underground power installation is often chosen when the overhead space is congested, natural obstacles are present, or the area houses a vulnerable ecosystem.
- Increased Power Needs: It becomes necessary when additional power capacity is required to meet rising demands.
- Personal Preference: Some individuals opt for an underground power supply due to their personal preferences.
Critical Considerations Before Undertaking Underground Power Installation
Underground service wires are more expensive due to their extensive insulation and moisture-resistant covering. Their length and width are designed to endure heavy power loads. Additionally, the installation process is more time-consuming, involving trenching, digging, and specialised equipment. Careful planning is essential, considering the presence of underground pipes and potential obstructions.
However, it’s important to note that underground cabling offers long-lasting durability once installed and demands minimal to no maintenance.
Opting for underground power installation significantly enhances safety. With all components located below ground, this approach offers superior protection. Underground installation minimises risks, particularly in densely populated areas with intricate wire networks and heavy traffic. It substantially reduces the likelihood of short circuits, electrical faults, and power outages caused by damaged wires. The added safety factor ensures a reliable power supply for your business or residence.
Power Supply and Voltage Needs
Underground power cables cater to various voltage requirements, accommodating high- and low-voltage needs. Underground electrical systems offer an excellent solution for a low-voltage power supply. However, selecting the right underground cables involves considering their voltage-bearing capacity. These cables can handle a maximum voltage capacity of 66kV and are classified into high-tension and low-tension wires.
To determine the most suitable underground wires for your specific electrical requirements, consult our expert electrical contractors; they possess the knowledge and expertise to guide you effectively.
Choosing the Right Cable Size
For underground power installation, the cable size is a crucial consideration. Cables must be capable of withstanding both the load and the heat generated by the current. Opting for smaller-sized conduits can lead to overheating and undesirable voltage drops.
Furthermore, the material of the cable and its size play pivotal roles in safeguarding your underground wires. Selecting the appropriate cable size should align with the current carrying capacity and voltage regulation requirements. This choice acts as a protective measure against electrical damage, short circuits, and fire hazards.
Materials like copper offer enhanced insulation and superior conductivity compared to aluminium. Making the proper selection ensures the safety and efficiency of your underground electrical system.
Installing underground power systems demands advanced technical expertise and specialised knowledge. This intricate process necessitates the involvement of professional Level-2 electricians.
At Eris Electrical, our team consists of accredited and highly trained Level-2 Electricians capable of handling various aspects of underground electrical services in Sydney, including underground service wire installation and maintenance. We take pride in providing 24/7 electrical services throughout Sydney and its surrounding areas. Don’t hesitate to contact us for comprehensive information about our extensive electrical services. Your electrical needs are our priority, and we’re here to assist you effectively and efficiently.