Home / Blog Posts / Electrical Conduit Wiring in Nigeria: Surface Vs. Concealed Types
Choosing the most appropriate type of electrical wiring is an important decision for any building in Nigeria. This definitive guide breaks down the two main methods: surface conduit and concealed conduit wiring.
We provide a clear and professional comparison of cost, installation, safety, and suitability for both new constructions and existing homes; thereby, empowering you to make the best choice for your property’s current status, as well as your budget, and long-term needs.
Whether you are building or renovating a property, or even simply moving into a new home, selecting the right electrical wiring method is a decision that can’t be easily dismissed. And that is because this choice directly impacts your budget, the building’s aesthetics (most especially the interior), and long-term maintenance that will eventually be conducted as the years go by. In Nigeria today, two primary methods dominate the building sector: Surface Conduit Wiring and Concealed Conduit Wiring. By understanding their key differences, you can equip yourself with the necessary information required to help you determine the most suitable choice for your living circumstances.
This guide provides a detailed comparison of both systems. It breaks down how they work, their advantages, disadvantages, and also their ideal applications.
In this installation method, electricians run electrical cables through pipes (conduits) that they mount directly onto the surfaces of walls and/or ceilings. Rather than concealing the system within the structure, the installer leaves the entire network visible and accessible. PVC (Polyvinyl Chloride) conduits are typically used for this purpose. However, in most common cases, the PVC trunking pipes are preferred for the job. It is important to note that these two types of conduit pipes come in various sizes. This size variation provides enough spacing for the possible number of cables used for any wiring installation.
Cost-Effectiveness: This system is generally the more affordable option, as you save significantly on labour. That is because it doesn’t require the need to track and follow the wall routes throughout the whole construction process.
Ease of Installation & Speed: Installation is very fast. Consequently, it causes minimal disruption, making it perfect for renovations, especially when moving from one place to another.
Simplified Maintenance & Troubleshooting: This is its greatest strength. If a fault occurs, an electrician can easily trace the entire circuit and replace the cables without damaging your walls.
Poor Aesthetics: Some persons may not enjoy the visible protrusions of the conduit pipes on the walls. Others may as well find it unappealing.
Vulnerability to Damage: Because the conduits are exposed, they are more susceptible to impact, accidental knocks, and even potential damage.
Dust Accumulation: The conduits tend to accumulate dust and cobwebs, and this can make cleaning a bit more tedious.
For this method, the electricians hide all electrical conduits and cables inside the walls, ceilings, and even underneath the floor. They complete this work before the plastering and finishing stages, resulting in a clean, seamless look.
This process is more complex and must happen during construction. First, the electrician has to navigate through the building’s structure and then break through a portion of the masonry (i.e. the cement work) to establish a pathway in the internal layout. Next, they lay PVC conduits into these pathways and pull the cables through them. Then, they embed the boxes for switches and sockets into the walls. Finally, the bricklayer covers all the work, leaving only the neat switch and socket outlets visible.
Advantages of Concealed Conduit Wiring
Superior Aesthetics: This is the primary benefit. It provides a clean and perfectly hidden appearance that is highly desirable for most modern homes and offices.
Excellent Protection: Once plastered over, the wiring is well-protected from physical damage, pests, and environmental factors.
Enhanced Safety: This system reduces the risk of electric shock and tampering, as the wires are not accessible.
Higher Cost: It is significantly more expensive due to the labour-intensive activities and additional plastering work required.
Complex Installation & Planning: It demands meticulous planning before plastering begins. Any error is very costly and difficult to correct later.
Difficulty in Maintenance: Locating and repairing a fault is challenging. Subsequently, it often involves breaking walls, which is disruptive and ruins the interior finish.
Beyond the wiring method, you must prioritize quality and safety. Therefore, always hire a qualified electrician. Furthermore, insist on high-quality materials such as pure copper cables. Also, ensure that the installation includes a proper earth connection and appropriate circuit breakers. If it’s a new structure that will most likely require concealed conduit wiring, do not be reluctant to hire professionals.
Choose Surface Conduit Wiring: If you’re working with a tight budget, renovating an existing property or moving into a new house. It can also be a great choice if you value easy maintenance over aesthetics.
Choose Concealed Conduit Wiring: If you are building a new home and want a modern, seamless finish. Also, if you have the budget for a more permanent and protected solution, then it’s a suitable choice as well.
By understanding these two main methods, you can make an informed decision that ensures your property is well-powered and suited to your needs.
Whichever path you select, its success hinges critically on one factor – expert execution. The most expensive concealed system is a liability if poorly planned. And the simplest surface installation becomes a hazard if incorrectly installed.
This is where true experience makes all the difference.
For a wiring project that combines safety with guaranteed satisfaction, consider partnering with Corustar Technological Services.
Our team of qualified electricians is exceptionally well-equipped to handle every aspect of electrical wiring. From the straightforward efficiency of surface conduits to the meticulous, forward-thinking planning that a concealed system demands. We fully understand that the integrity of your electrical system is the backbone of your property’s safety and functionality.
Therefore, consider choosing Corustar today, your devout partner dedicated to electrical excellence.
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