- 1 What is luminaire lighting?
- 2 What is the difference between a light and a lamp?
- 3 How many types of light are there?
- 4 Which effect of an electric current is used in an electric incandescent bulb?
- 5 What are the types of LED lights?
- 6 What is the advantage of using LED lights?
- 7 What causes LED lights to fail?
- 8 Can LED lights break?
- 9 What is a good definition of solar energy?
- 10 How is solar energy used?
- 11 How do multimeters work?
- 12 How do you read resistance on a multimeter?
- 13 How do you read the voltage on a multimeter?
- 14 What is the difference between alternative energy and renewable energy?
- 15 Which is better lithium or alkaline batteries?
- 16 How can you protect your device from lightning?
- 17 Which protective device is used for protection against lightning?
- 18 Can lightning ruin a TV?
- 19 Do circuit breakers protect against lightning?
- 20 Can lightning damage a breaker?
- 21 What is the function of a miniature circuit breaker?
- 22 What is the difference between MCCB and MCB?
- 23 What causes an MCB to trip?
- 24 How do I know if a circuit breaker is bad?
- 25 What is domestic electrical wiring?
- 26 What type of electrical wiring is used in homes?
- 27 How much does it cost to wire a new house?
- 28 Which brand is best for house wiring?
- 29 What wire colours mean?
- 30 Which wire is used in AC?
- 31 What happens if live and neutral wires touch?
- 32 Which wire is best copper or Aluminium?
- 33 Can you wire your own house?
- 34 Is house wiring single phase?
- 35 What kind of jobs do electricians do?
- 36 How many hours does an electrician work?
- 37 Is it hard to be an electrician?
- 38 What are the duties of electrician?
- 39 What skills do electricians need?
- 40 Are electricians in high demand?
- 41 Is electrical trade a good career?
- 42 What are the different types of electricians?
- 43 What does an electrician do on a daily basis?
- 44 What tools does an electrician need?
What is luminaire lighting?
Is a complete lighting fitting with necessary accessories that would enable it to produce light.
What is the difference between a light and a lamp?
Light refers to the visible part of the electromagnetic spectrum that is, the part that enables you to see in dark places were as a lamp is a device that helps you to produce light I can give an example of a pendant, it a lamp.
How many types of light are there?
To answer this question in a simple way is quite difficult. I say so because all forms of light are part of the electromagnetic spectrum. This includes both visible and invisible light. Here is an example of types of light found in the electromagnetic spectrum.
1.Low-frequency radio waves
But when it comes to how many types of light they are in terms of light in lighting fixtures or lamps, I can say they are two basic types according to how light is produced in the lamps. These are luminescence and incandescence.
Which effect of an electric current is used in an electric incandescent bulb?
Here current effect used is heating and lighting effect.
What are the types of LED lights?
The types of LED, lights are common are, light bulbs, strip lights, fluorescent, Floodlights and indicator lamps
What is the advantage of using LED lights?
What causes LED lights to fail?
LED fails mainly because of the LED driver failing.
What is a good definition of solar energy?
The most basic definition of solar energy is the energy that comes from the sun. You can learn more about solar energy here.
How is solar energy used?
How do multimeters work?
How Multimeters Work. A multimeter is a tool designed to troubleshoot electrical and electronic circuits and is used for checking voltages to confirm proper operating levels. … An ammeter measures current, an ohmmeter allows you to determine resistance, and a voltmeter is used to measure the voltage between two points
How do you read resistance on a multimeter?
You start by selecting the ohmmeter on your multimeter, then put the measuring probs in the right jacks. And measure the resistance of the device and the gadgets you want to measure.
How do you read the voltage on a multimeter?
First things first you start by selecting the voltage meter on your multimeter you put it in parallel with the components that you want to measure.
What is the difference between alternative energy and renewable energy?
An alternative source of energy is any source of energy that can replace the traditional sources of energy. Like gas, coal and oil that can harm and pollute the ozone. traditional sources of energy tend to increase the atmospheric carbon when banned as fuel.
A renewable source of energy is a source that is automatically replenished or one that doesn’t get depleted as it is being used. Renewable sources of energy can be said to be infinity. Learn more about renewable energy and batteries.
Which is better lithium or alkaline batteries?
All batteries are better for specific applications.you can learn more on how or which battery applications work best for either lithium or alkaline batteries.
How can you protect your device from lightning?
Yes, you can by making sure that all your devices are properly earthed and have lightning arrestors.
Which protective device is used for protection against lightning?
A lightning arrestor is a most commonly used device for protection against lightning.
Can lightning ruin a TV?
If it is not properly protected against surge and lightning, a TV can be ruined by lightning.
Do circuit breakers protect against lightning?
No circuit breakers do not protect against lightning, arrestors do learn more on MCB and lightning arrestors here.
Can lightning damage a breaker?
Storms and lightning strike. Though not the most common cause of circuit breaker tripping, storms can certainly do it. We recommend looking into whole-home surge protection systems to prevent this, as well as to protect vital and high-cost home appliances.
What is the function of a miniature circuit breaker?
A miniature circuit breaker (MCB) automatically switches off the electrical circuit during an abnormal condition of the network means in overload condition as well as faulty condition. Nowadays we use an MCB in low voltage electrical network instead of a fuse.
What is the difference between MCCB and MCB?
Most people are confused about the differences between MCB and MCCB. … “MCB” stands for “Miniature Circuit Breakers”, while “MCCB” is “Molded Case Circuit Breaker.” The main difference between the two is their capacity, with the MCB rated under 100 amps.
What causes an MCB to trip?
There are three main causes for an MCB to trip, these are
3. The breaker has outlived its usefulness.
How do I know if a circuit breaker is bad?
The only sure way to know that a circuit breaker is bad is to use instruments like a neon tester and a multimeter. WHEN YOU USE a multimeter to test the circuit breaker, select the voltmeter, then turn the circuit breaker on, then using a multimeter, measure the load side of the circuit breaker, if it gives to use a correct voltage reading, then the circuit breaker is okay, if not then the circuit breaker is faulty.
What is domestic electrical wiring?
Domestic electrical wiring mainly refers to the wiring that is done in domestic premises, that is residential buildings.
What type of electrical wiring is used in homes?
They are a lot of electrical wiring systems used in homes, The most common ones being Surface wiring and flush wiring. The difference between the two is that in surface wiring, the conduit pipes and cables are mounted on the surface of the walls while in the flush system, conduits and cables are embedded in the walls.
How much does it cost to wire a new house?
Which brand is best for house wiring?
The answer to this question will vary from region to region and country to county. In Zambia, ZAMEFA is the best brand for Electrical house wiring.
What wire colours mean?
The wire used is the same the colour is there to differentiate the functions of the wires. In most domestic electrical installations, three colours are widely used. These are red black and green. The wire that is coloured red is used for the cable that is carrying live power. Black coloured wire is used for the cable that is fade into the neutral line, while green is used for the protective conductor, earthing
Which wire is used in AC?
AC as in an air conditioner, the commonly used wire is a 2.5mm2 cable that is from the circuit breaker to airconditioning unit.
What happens if live and neutral wires touch?
A short circuit occurs
Which wire is best copper or Aluminium?
Copper is a better conductor than aluminium, but what influences their use is the application. For a high tensions line, it is more cost-effective to use aluminium than copper.
Can you wire your own house?
If you are a qualified electrician you can wire your own house. In most countries, you can not wire a house without a practising licence certificate from relevant authorities.
Is house wiring single phase?
Most stand housings units are wired using a single-phase supply from the utility company.
What kind of jobs do electricians do?
Electricians plans for maintenance works, climb on ladders works on electric motors, in substations works in the ceilings and many other areas depending in the industry he is working in.
How many hours does an electrician work?
Basically, electrician works 8 hours a day 40 hours a week.
Is it hard to be an electrician?
It’s not hard to be an electrician, all you need is has passion and a basic understanding of mathematics and physics.
What are the duties of electrician?
The most electrician installs equipment, repair faulty machines and general maintenance works.
What skills do electricians need?
An electrician needs a lot of skills to perform to peoples expectations, therefore, I give you the most basic skills and these are
Problem-solving skills, should not be colour blind as electrician use a lot of colour coding in their works. an electrician should work with hand tools and should always have highly calculated guesses when doing faulty finding, what I mean is that he should be able to interpret the data that he gets from measuring instruments and solve the problem at hand.
Are electricians in high demand?
Electricians are in high demand, this is because people are always building, from domestic premises through commercial and industrial projects. All these projects need the service of electricians. Even if people would stop building, electricians would still be in demand, they need to do electrical maintenance works on existing buildings.
Is electrical trade a good career?
From my own experience working as an electrician, it is a good career.
What are the different types of electricians?
There are many types of electricians, but we can group them into two many groups. Those who work in commercial and domestic premises and those who work on industrial premises most in a plant.
What does an electrician do on a daily basis?
It depends on the type of industry you are in but in most cases, electricians find themselves doing maintenance works, repairing of machines, installation of new equipment and at times making drawings for various electrical projects.
What tools does an electrician need?
An electrician needs four basic tools for him to do the most basic tasks. These are a neon tester, flat screwdriver, star screwdriver and a multimeter