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Electrical Wiring is a process of connecting cables and wires to the related devices such as fuse, switches, sockets, lights, fans etc to the main distribution board is a specific structure to the utility pole for continues power supply.
Methods of Electrical Wiring Systems w.r.t Taking Connection
Wiring (a process of connecting various accessories for distribution of electrical energy from supplier’s meter board to home appliances such as lamps, fans and other domestic appliances is known as Electrical Wiring) can be done using two methods which are
Joint Box or Tee or Jointing System
In this method of wiring, connections to appliances are made through joints. These joints are made in joint boxes by means of suitable connectors or joints cutouts. This method of wiring doesn’t consume too much cables size.
You might think because this method of wiring doesn’t require too much cable it is therefore cheaper. It is of course but the money you saved from buying cables will be used in buying joint boxes, thus equation is balanced. This method is suitable for temporary installations and it is cheap.
Loop-in or Looping System
This method of wiring is universally used in wiring. Lamps and other appliances are connected in parallel so that each of the appliances can be controlled individually. When a connection is required at a light or switch, the feed conductor is looped in by bringing it directly to the terminal and then carrying it forward again to the next point to be fed.
The switch and light feeds are carried round the circuit in a series of loops from one point to another until the last on the circuit is reached. The phase or line conductors are looped either in switchboard or box and neutrals are looped either in switchboard or from light or fan. Line or phase should never be looped from light or fan.
Different Types of Electrical Wiring Systems
The types of internal wiring usually used are:
here are additional types of conduit wiring according to Pipes installation (Where steel and PVC pipes are used for wiring connection and installation).
Cleat Wiring
This system of wiring comprise of ordinary VIR or PVC insulated wires (occasionally, sheathed and weather proof cable) braided and compounded held on walls or ceilings by means of porcelain cleats, Plastic or wood.
Cleat wiring system is a temporary wiring system therefore it is not suitable for domestic premises. The use of cleat wiring system is over nowadays.
Casing and Capping wiring
Casing and Capping wiring system was famous wiring system in the past but, it is considered obsolete this days because of Conduit and sheathed wiring system. The cables used in this kind of wiring were either VIR or PVC or any other approved insulated cables.
The cables were carried through the wooden casing enclosures. The casing is made up of a strip of wood with parallel grooves cut length wise so as to accommodate VIR cables. The grooves were made to separate opposite polarity. the capping (also made of wood) used to cover the wires and cables installed and fitted in the casing.
Batten Wiring (CTS or TRS)
Single core or double core or three core TRS cables with a circular oval shape cables are used in this kind of wiring. Mostly, single core cables are preferred. TRS cables are chemical proof, water proof, steam proof, but are slightly affected by lubricating oil. The TRS cables are run on well seasoned and straight teak wood batten with at least a thickness of 10mm.
The cables are held on the wooden batten by means of tinned brass link clips (buckle clip) already fixed on the batten with brass pins and spaced at an interval of 10cm for horizontal runs and 15cm for vertical runs.
Lead Sheathed Wiring
The type of wiring employs conductors that are insulated with VIR and covered with an outer sheath of lead aluminum alloy containing about 95% of lead. The metal sheath given protection to cables from mechanical damage, moisture and atmospheric corrosion.
The whole lead covering is made electrically continuous and is connected to earth at the point of entry to protect against electrolytic action due to leaking current and to provide safety in case the sheath becomes alive. The cables are run on wooden batten and fixed by means of link clips just as in TRS wiring
There are two additional types of conduit wiring according to pipe installation in kenya
Surface electrical Conduit Wiring
If conduits installed on roof or wall, It is known as surface conduit wiring. in this wiring method, they make holes on the surface of wall on equal distances and conduit is installed then with the help of rawal plugs.
Concealed electrical Conduit wiring
If the conduits is hidden inside the wall slots with the help of plastering, it is called concealed conduit wiring. In other words, the electrical wiring system inside wall, roof or floor with the help of plastic or metallic piping is called concealed conduit wiring. obliviously, It is the most popular, beautiful, stronger and common electrical wiring system nowadays.
In electrical conduit wiring, steel tubes known as conduits are installed on the surface of walls by means of pipe hooks (surface electrical conduit wiring) or buried in walls under plaster and VIR or PVC cables are afterwards drawn by means of a GI wire of size if about 18SWG.
In electrical Conduit wiring system, The conduits should be electrically continuous and connected to earth at some suitable points in case of steel conduit. electrical Conduit wiring is a professional way of wiring a building. Mostly PVC conduits are used in domestic wiring.
The conduit protects the cables from being damaged by rodents (when rodents bites the cables it will cause short circuit) that is why circuit breakers are in place though but hey! Prevention is better than cure. Lead conduits are used in factories or when the building is prone to fire accident. Trunking is more of like surface conduit wiring. It’s gaining popularity too.
If you’ve already begun shopping the different types of solar panels, you’ve probably noticed that they don’t all look exactly alike. But it’s not just cosmetic, solar panels don’t all perform the same way. Each of them have different capabilities with energy efficiency levels and total installation costs. The 3 most popular types of solar panels you can have installed include:
If you’ve already begun shopping the different types of solar panels, you’ve probably noticed that they don’t all look exactly alike. But it’s not just cosmetic, solar panels don’t all perform the same way. Each of them have different capabilities with energy efficiency levels and total installation costs. The 3 most popular types of solar panels you can have installed include:
Wondering which types of solar panels are best for you in kenya? Much will depend on your budget and the cost to install solar energy, roof space, access to sunlight, and the desired energy efficiency you are hoping for.
Let’s look at the major types of panels and what you need to know to be a smart solar energy shopper in kenya.
The newest type of solar panel installation option in kenya is the growing trend of installing solar roof shingles. They are the modern answer to having a beautiful roof that can mimic architectural asphalt shingle roofs but with the added benefit of a home that is equipped with a solar energy system.
Solar shingles are as durable as regular asphalt shingles and protect your roof and home just as well. For each solar shingle installed, they can produce anywhere from 13 to 63 watts of energy. They can withstand any weather elements, but it can be expensive when comparing the costs to install solar shingles.