NAME: Ogunremi Sunday
WHAT IS DC HIGH VOLTAGE?
There are two major type of electricity, we have the alternative current and we have the direct current we cannot be saying alternative current and direct current all the time that is why we call it DC and AC. When the direct current is high from 11KG and above we say is high DC voltage .
IS IT TRUE THAT IT CAN PREVENT SHOCK SINCE THEY SAY THAT DC HIGH VOLTAGE SECONDARY SHOCK PREVENTION DEVICE?
I will not say that both the AC and DC VOLT THEY HAVE the capacity of electrocuting but that of Ac is more deadly because it involves frequency AC have frequency. Nigeria use 50s and 220 VOLT but in America they use 60s and 120 VOLT but anyone that involves frequency it we have more tendency of electrocution but DC does not have it has 0 frequency. When something of 5 VOLT will shock in AC in DC it will be like 25 or 30 VOLT that will shock in DC because of the frequency effect.
IS IT ADVISABLE TO USE DC IN ADOMACY AREARS LIKE OFFICES, HOSTEL E.T.C?
Yes ,at the origin of electricity in the world there are two people that did electricity they are telslam and Edison. Edison believe so much in DC, he formulate first power distribution setup for DC and he transmitted it. Telslam came with another idea AC is better to be transmitted than DC already it is Dc that first got recognition if we were to continue like that it is DC that we will be using now. But there was little argument between them people said AC is better and some people said Dc is better so because of that they separated.
They came out with the fact that AC is deadly but the advantage is that they can regenerate it with our transformer. In DC you cannot do it through transformer it does not have alternative capacity it does not have frequency, it is just a straight line, It has 0 frequency. That is the main thing why they don’t use frequency at home.
THE BENEFIT OF DC HIGH VOLTAGE?
The advantage of DC has only two kilo, which is positive and negative you will not have to waste much of your money using three kilo in the other you will just use only two that is the positive and the negative and also the ability not to shock.
HOW SAVE IS DC HIGH VOLTAGE?
It s not 100% safe in engineering like our students now when we teach them, when they first came in 200lvl, they do science in 100lvl. The first thing we teach them is safety there is no engineering thing that is 100% save its only God that is 100% safe if i will be sincere with you , anything you see in engineering you cannot get a state of perfection but you as a user you have the responsibility of been safety conscious so direct current(DC) is not 100% safe but is safer than (AC) like i said is just like 5 times the other one.
So safety is the first thing that anybody that wants to use electricity must have at the back of their mind.
Number 1 : you don’t wear damp shirt or anything damp on your hand when operating on electric it can kill fast
No 2: make sure that you don’t switch on the electric device when you have not tested, if you have ever worked in electrical place before, i have worked when i was doing my internship, i have seen what they call real electric circuit. So that’s why he should be very careful
In the lab we don’t tolerate any student behaving anyhow because we know that’s where the whole thing starts , you can get yourself killed easily , so the first thing you should have in mind is nothing is 100% safe in engineering.
Then since you know that safety conscious, we wrote some safety rules, when you come in that’s the first thing you see on the door, we have the safety rule that they must obey, so get it that nothing is 100% safe.
WHERE CAN THIS DC HIGH VOLTAGE BE USED?
It can be used in different places like if you have bothered to open your television we have the DC high voltage they call it light transformer in television its actually what produce the pixel you see on your screen when you turn on your TV that’s what illuminates the cathode tube that you have inside it, so the closest to us is television.
You can also use it to power DC motor there are other places some people use it for lightening too but the closest to us is television
IS THERE WAY WE CAN CONTROL DC HIGH VOLTAGE?
Yes just like AC anything that is applicable to AC you can use it also for DC the control is the same thing.
For example we have AC motor and DC motor when controlling them its actually a bit different with the component you are going to assemble.
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