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Electrical accessories are extra pieces of electrical equipment that are not factory-fitted. They are used in domestic and industrial electrical wiring and include items such as switches, holders, sockets, plugs, and ceiling roses. Switches can be categorised in several ways, including single-pole, double-pole, two-way, and two-way centre off. The selection and installation of wiring systems and accessories are critical to electrical installation work, and it is important to refer to the relevant standards and technical specifications.
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What You'll Learn
Switches
Electrical accessories refer to extra electrical or electronic equipment that is not factory-fitted in a vehicle or building. Switches are a type of electrical accessory used in domestic and industrial electrical wiring to turn a circuit on or off.
There are many different types of electrical switches, each with its own unique functionality and applications. For example, a dual inline package (DIP) switch is made up of a series of tiny switches, while a single inline package (SIP) switch is a computer chip package with a single row of connection pins. Push-button switches are non-latching or momentary, causing a temporary change in the electrical current of a circuit when the button is pressed. Rocker switches, on the other hand, rock back and forth and are actuated by a paddle, standard rocker, or dual rocker. Slide switches remain in one state until they are manually changed to a new state, while snap-action switches rapidly transfer contacts from one position to another. Toggle switches are another option, designed for two types of contact: maintained and momentary.
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Holders
Electrical accessories refer to the extra electrical and electronic equipment that is not factory-fitted in a vehicle or building. They are also items used in domestic and industrial electrical wiring. One such electrical accessory is a holder.
A holder, or bulb holder, is an electrical device that securely holds and provides power to a light bulb. It is one of the most commonly used electrical accessories in homes, offices, and other commercial places. Bulb holders are traditionally used for the wall, but they can also be used over bathroom mirrors to increase light intensity. They are also used in the gap between an actual ceiling and a false ceiling to install lights and create a premium look.
Bulb holders are mainly categorised based on the socket and build type. The most common bulb socket types are Edison Screws, popular in North America and continental Europe, and Bayonet Mounts, popular in Commonwealth countries. Based on the build type, bulb holders are classified as angle holders, batten holders, and pendant holders. Angle holders are tilted at an angle to focus light in the desired angular direction. They are mainly used in households to illuminate an entire room with fewer bulbs. Batten holders are used to focus light in the direction perpendicular to their base. They are commonly fixed to ceilings to provide shadow-free light from the top. Pendant holders, or hanging bulb holders, hang down with a movable wire attached to a ceiling rose. They are used for Diwali lanterns, study tables, and corridors.
Manufacturers of bulb holders include Pressfit, which makes all three types of bulb holders, and Rajasthan Pipe Traders, which makes single holder adapters, Ronela bulb holders, and angle holders.
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Socket outlets
Electrical accessories are items used in domestic and industrial electrical wiring. Socket outlets, or electrical sockets, are a type of electrical accessory that connect devices to mains electricity, allowing them to draw power from an electrical circuit.
Different types of socket outlets are designed for specific functions and to accommodate different types of plugs. For example, rotating outlets have plugs that can rotate 360 degrees, making them useful in tight spaces or when using large plugs. Universal Serial Bus (USB) outlets are a type of combination electrical socket that contains both a standard two-prong plug and a USB charging port, allowing for the simultaneous charging of multiple devices. Smart outlets are another type of combination outlet that connects to a home network via WiFi or Bluetooth, enabling remote control through a smartphone or voice assistant app.
In addition to these, there are also specialty electrical sockets designed for safety and protection. Arc Fault Circuit Interrupter (AFCI) outlets, for example, are designed to prevent arc faults, which occur when an electrical current jumps between wires or connections, causing electrical fires. Ground Fault Circuit Interrupter (GFCI) outlets, on the other hand, protect against electrical shocks by monitoring the flow of electricity and automatically shutting off power when necessary. These outlets are required by electrical code in bathrooms, wet areas of kitchens, basements, and outdoor locations. Tamper-resistant receptacles are another safety feature designed to prevent electrical injuries in children by incorporating built-in blocks that prevent them from inserting objects into the outlet slots.
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Plugs
Electrical accessories are items used in domestic and industrial electrical wiring, such as switches, holders, sockets, plugs, and so on. Plugs, also known as attachment plugs or power plugs, are an essential component of electrical accessories. They are the plastic-capped, pronged ends of cords that are inserted into receptacles or sockets to deliver electricity to equipment, lights, and devices.
Three-pronged plugs, on the other hand, include an additional grounding or earthing pin, which is connected to the electrical system's ground wire. This grounding pin is a critical safety feature designed to direct stray electricity away from the appliance in the event of a fault, short circuit, or power surge. By channeling excess current to the ground, it helps prevent electrocution, electrical fires, and damage to the appliance. High-power appliances, such as flat irons, toasters, HVAC systems, and sensitive electronics like computers and game consoles, typically use three-pronged plugs.
It is important to note that the design of plugs and their corresponding sockets has evolved over time to prioritize safety and reduce the risk of electric shock and fire. Plugs are shaped to prevent accidental contact with live parts, and they often have built-in fuses that break the circuit if too much current is detected. Additionally, the proliferation of plug types has led to the development of multi-standard sockets that can accommodate various plug configurations.
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Thermostats
Electrical accessories refer to extra electrical or electronic equipment that is not factory-fitted in a vehicle or building. They are used in domestic and industrial electrical wiring and include items such as switches, holders, sockets, plugs, and fuse cut-outs. Thermostats are a type of electrical accessory that can be used to enhance the power of electric heaters.
Smart thermostats are a type of digital thermostat that connects to a home's Wi-Fi network, allowing remote control via a smartphone app or voice assistant. They offer features such as learning algorithms that can automatically adjust settings based on usage patterns, providing energy-efficient heating and cooling. Some well-known brands in the thermostat market include Honeywell, Google, Emerson, and Coleman.
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Frequently asked questions
Electrical accessories are items used in domestic and industrial electrical wiring. They can be classified into several categories based on their functions, including switches, holders, socket outlets, and plugs.
Examples of electrical accessories include switches, holders, socket outlets, plugs, ceiling rose, fuse cut-out, dimmer switches, timers, thermostats, clamps, cable ties, cable clips, and conduit and conduit fittings.
A single-pole switch controls a single circuit and has only one set of contacts, while a double-pole switch has two sets of contacts and can control two separate circuits simultaneously.
A wiring system is an assembly made up of cables, busbars, and parts that secure and, if necessary, enclose the cables or busbars.
