🔔Help Electro Academy grow! 🔔 Your support can make a big difference! 😍 If you appreciate the efforts behind these educational videos, please subscribe - it’s free and just a click away.!🙏🏽 Additionally, if you can contribute, you can become a patron and support our mission of sharing knowledge with students and professionals around the world: patreon.com/ElectroAcademy 🙌 I am deeply grateful to our first sponsor! Your kind gestures motivate us to continue creating quality content. Let’s build this community together.!🏆 THANKS .! - Sudarshan, Creator of Electro Academy
Do we get electric shock when we touch any metal appliance which conected to the earth cable when the spd release the lightning volt trough the ground cable?
If the earth wire size from present earth bar to the ground rod is 10 mm2 or more, same earth bar can be used for SPD connection. If it is less, you need a separate earth wire with 10 mm2 or more, from SPD to the ground rod.
You can install Type1 SPD at main incoming line after the main switch. (Before splitting the circuit.) If two sub-distribution boards are available with equipment need to be protected, two SPDs (Type2) need to be installed in two DBs before the RCD.
Yes, fuses or circuit breakers are generally needed in a single-phase Surge Protection Device installation, and they serve important protective functions. SPDs can wear out over time, especially after multiple surge events. If the SPD fails, the fuse or circuit breaker will protect the rest of the electrical system from the potential hazards of a failed SPD, such as short circuits or fire. While not all SPDs come with built-in fuses or breakers, it is usually recommended or required by electrical codes to use separate overcurrent protection for the SPD. The size and rating of the fuse or breaker depend on the SPD's characteristics, including its maximum discharge current and voltage ratings. Always consult the manufacturer’s guidelines for correct installation.
If the SPD is short circuited internally, Over Current Protection Devices will operate. Also the RCD will operate and you won't be able to switch on the circuit until you disconnect the faulty SPD. However it all depends on the severity of the damage inside of the SPD.
If a surge appears on any line connected to the SPD, it will by pass it through the earth wire to the ground. If Neutral wire is not connected, still the phase wires connected to the SPD will work. But, any surge appears or comes in to the house from outside on the Neutral line, surely can damage the equipment connected. That is the reason for connecting all the lines from outdoor to the SPD, before entering the premises.
Thanks for the informative video. What size fuses (normal or air?) do you recommend to place before the SPD? I have 16A 4P 230V coming in from the grid and 63A 2P 230V from local solar inverter.
If a 3 pole surge protector ( Siemens bolt shield) is installed in a home with 120/240 v, no 3 phases capability, will the surge protector still protect ?
Standard 3phase SPD should work as long as you select matching voltage for single phase. For a 230 volt single phase supply, V RMS is 230V. V max is 325 volts. When you select with 10-15 % extra voltage, SPD should have 375-385 Volts value. Any two poles on SPD can be connected for single phase lines, keeping the extra pole empty. How ever, ask the manufacture first, since some sophisticated units may not work with one pole is without a phase line connected to it.
Even a high performing MCB will take more than 2 milliseconds to operate. Sudden transient voltages appear and dissapear within few microseconds. 1 microsecond is 1 millionth of a second. A good SPD will operate within few nano seconds. 1 microsecond is 1000 nanoseconds. It shows how fast SPDs act. MCBs are not capable enough to detect those transient voltages.
I live in a country where rms voltage is 230v So basically 325peak volt as shown in the video I want to order a surge protector online Same specs as in the video In 20ka Imax 40ka But with uc 275v In the video it says uc value shouldnt be near the peak voltage So can i still use that ? Even in my country here in store They sell ones with uc lower than peak voltage Also the up is 1.2 v is that better for voltage spike ? Or 1.5v is better? Please somebody help me with this asap Really need some help here
UC is maximum continuous voltage and is related to the RMS voltage. Since RMS voltage is 230 volts here, this SPD with 275 V UC limit is ideal to use. When consider the UP level, 1.2 V SPD, or even a one with 900 Volts is better than the 1.5 V unit for sensitive electronic items, but it should be used as the secondary SPD unit only. That means you should have a primary SPD with a UP level of around 2.5 V at the entrance then. Since we normally go for only one SPD unit for a home, better option is to go for a SPD type 1+2.
@@ElectroAcademyEA i am just trying to protect my electronics from voltage spikes from power outage and surges Where i live, i don't really have any issues with lighting Do i still need to buy spd type 1 ? I also have spd type 3 on a power strip So i will have both type 2 and 3
If your area is free from Lightning issues, type 1 SPD is optional only. So you can go with Up 1.2 V SPD, and it has better protection level than 1.5 V SPD for electronic equipment.
@@janjanboquia6738 ua-cam.com/video/hTqaG44Nr34/v-deo.html Powerpoint tutorials are rare in youtube. Above is one on animation, but not about wiring work. I also just started exploring powerpoint on my own and practiced it.
This diagrama refers only for CT1 type of connection and is wrong because in TT systems RCD should be before SPD and not after. Only in TNS is after. Also who the hell uses CT1 today ? CT2 is by far beter for TT and TNS for electricians
CT1 type is used at main switch board and if sub-distribution boards too are available, CT2 type should come on to the sub-panel. (CT2 type is not there as a replacement for CT1 type) CT3 or type 3 SPDs are also available and should be installed separately with specific systems when protection is needed for security cameras, telephone systems, PLC operation etc. Further, RCD is nothing to do with SPD. SPD is better to be fixed even before the main switch, but since it needs to be isolated when replacing or new one being installed, SPD comes after the main switch.
🔔Help Electro Academy grow! 🔔
Your support can make a big difference! 😍
If you appreciate the efforts behind these educational videos, please subscribe - it’s free and just a click away.!🙏🏽
Additionally, if you can contribute, you can become a patron and support our mission of sharing knowledge with students and professionals around the world: patreon.com/ElectroAcademy 🙌
I am deeply grateful to our first sponsor! Your kind gestures motivate us to continue creating quality content. Let’s build this community together.!🏆
THANKS .!
- Sudarshan, Creator of Electro Academy
Great work. Very much appreciated especially your lecture in English language. It gains global coverage and more subscribers.
Thank you
This is called exact tutorial video... It should get more likes. If there is option to give more than 1 like then I will surely do that.
Thank you very much.!👍❤
Very good tutorial
I have benefited, thanks. I also like the you explaining, clear and to the point
Thank you
Thanks to your hard work on
This lecture it is very important to protective device
Thank you.
perfect explanation with all required details , many thanks for such a helpful information .
Thank you.
Very well explained. Recently I installed a 100kA surge protector from Dehn in my three phase connection in my home.
Thank you. 👍
Excellent presentation sir ❤❤❤❤, like it
Thank you
Just what I was looking for, thank you : )
Thank you
Mulțumim pentru video
Thank you
How to maintenance SPD to know is in good conditions from time to time?
If the indicator stays green, SPD is in good condition.
Good job brather..Thank you for sharing about spd
Thank you.
Excellent video, beautifully explained.
Thank you.
Thank you for these valuable information
Thank you
Do we get electric shock when we touch any metal appliance which conected to the earth cable when the spd release the lightning volt trough the ground cable?
Always better to avoid touching metal parts unnecessarily, since we don't know the magnitude of the current going to flow, when lightning occurs.
So I think it's better to keep a separate dedicated earthpole for the spd to avoid any kind of risk
Can you please do a video on SPD sizing and advantages of the different types
Ok. Will do.
Do we need a dedicated earth bar, or we can connect the SPD to the existing common earth bar.
If the earth wire size from present earth bar to the ground rod is 10 mm2 or more, same earth bar can be used for SPD connection.
If it is less, you need a separate earth wire with 10 mm2 or more, from SPD to the ground rod.
What if I have a 230v supply feeding a split board with 2 rcds in the consumer unit
You can install Type1 SPD at main incoming line after the main switch. (Before splitting the circuit.)
If two sub-distribution boards are available with equipment need to be protected, two SPDs (Type2) need to be installed in two DBs before the RCD.
@ 4:40, we need 3 fuse on the 3 phase spd, to protect against internal short between the lines. Is this fuse also required for a single phase spd?
Yes, fuses or circuit breakers are generally needed in a single-phase Surge Protection Device installation, and they serve important protective functions.
SPDs can wear out over time, especially after multiple surge events.
If the SPD fails, the fuse or circuit breaker will protect the rest of the electrical system from the potential hazards of a failed SPD, such as short circuits or fire.
While not all SPDs come with built-in fuses or breakers, it is usually recommended or required by electrical codes to use separate overcurrent protection for the SPD.
The size and rating of the fuse or breaker depend on the SPD's characteristics, including its maximum discharge current and voltage ratings.
Always consult the manufacturer’s guidelines for correct installation.
Can I ask sir ,if I have 70A main CB what should I put SPD type is can put 20KA?
Please watch tis video, ua-cam.com/video/EjWV9v1KorM/v-deo.html
If I don't replace a failed SPD with a new one, would it make the RCCB (or RCBO) to trip (circuit break) more easily?
If the SPD is short circuited internally, Over Current Protection Devices will operate.
Also the RCD will operate and you won't be able to switch on the circuit until you disconnect the faulty SPD.
However it all depends on the severity of the damage inside of the SPD.
Can i direct connection of SPD in linr side no on the load side of Main breaker?
It should come after the main breaker.
Three phase ki spd me agar two phase lagaye aur nutral na lagaye to kya spd work karega
If a surge appears on any line connected to the SPD, it will by pass it through the earth wire to the ground.
If Neutral wire is not connected, still the phase wires connected to the SPD will work.
But, any surge appears or comes in to the house from outside on the Neutral line, surely can damage the equipment connected.
That is the reason for connecting all the lines from outdoor to the SPD, before entering the premises.
Thanks for the informative video.
What size fuses (normal or air?) do you recommend to place before the SPD? I have 16A 4P 230V coming in from the grid and 63A 2P 230V from local solar inverter.
80 Amp fuses are recommended.
If a 3 pole surge protector ( Siemens bolt shield) is installed in a home with 120/240 v, no 3 phases capability, will the surge protector still protect ?
Standard 3phase SPD should work as long as you select matching voltage for single phase.
For a 230 volt single phase supply, V RMS is 230V.
V max is 325 volts.
When you select with 10-15 % extra voltage, SPD should have 375-385 Volts value.
Any two poles on SPD can be connected for single phase lines, keeping the extra pole empty.
How ever, ask the manufacture first, since some sophisticated units may not work with one pole is without a phase line connected to it.
Great video.. In a surge scenario, the SPD will ground the excess voltage but WILL it also trip the MCB??
Even a high performing MCB will take more than 2 milliseconds to operate.
Sudden transient voltages appear and dissapear within few microseconds.
1 microsecond is 1 millionth of a second.
A good SPD will operate within few nano seconds.
1 microsecond is 1000 nanoseconds.
It shows how fast SPDs act.
MCBs are not capable enough to detect those transient voltages.
@@ElectroAcademyEA so the breaker won't trip... Thank you for replying
@@shaunchetty4223 yep and now we also know why. That's what good teachers do.
Thank you
thank you
Thank you
I live in a country where rms voltage is 230v
So basically 325peak volt as shown in the video
I want to order a surge protector online
Same specs as in the video
In 20ka
Imax 40ka
But with uc 275v
In the video it says uc value shouldnt be near the peak voltage
So can i still use that ?
Even in my country here in store
They sell ones with uc lower than peak voltage
Also the up is 1.2 v is that better for voltage spike ?
Or 1.5v is better?
Please somebody help me with this
asap
Really need some help here
UC is maximum continuous voltage and is related to the RMS voltage.
Since RMS voltage is 230 volts here, this SPD with 275 V UC limit is ideal to use.
When consider the UP level, 1.2 V SPD, or even a one with 900 Volts is better than the 1.5 V unit for sensitive electronic items, but it should be used as the secondary SPD unit only.
That means you should have a primary SPD with a UP level of around 2.5 V at the entrance then.
Since we normally go for only one SPD unit for a home, better option is to go for a SPD type 1+2.
@@ElectroAcademyEA i am just trying to protect my electronics from voltage spikes from power outage and surges
Where i live, i don't really have any issues with lighting
Do i still need to buy spd type 1 ?
I also have spd type 3 on a power strip
So i will have both type 2 and 3
If your area is free from Lightning issues, type 1 SPD is optional only.
So you can go with Up 1.2 V SPD, and it has better protection level than 1.5 V SPD for electronic equipment.
@@ElectroAcademyEA thank you for your help
Really cleared up the confusion
And very educative video
Have a good day :)
@@kuronekosan2830 Thank you
Why the subtitles is shown this way .. not able to see the video peoperly
You can easily stop subtitle appearing, by clicking "CC" tab on the video screen.
Thank you.
Can I use a three phase SPD device for single phase connection wiring at home with keeping other 2L s are free. Is it working?
Yes
How about SPD rating?
Many thanks.
Will try to do a video on this.
Can u do a video of SPD faults and how to reset ?
I will upload a new video about SPDs, within next 3 days.
Hope you will find it helpful.
Thanks Share
Thank you
Thanks
Thank you
This is indeed informative except for your voice is crucial to listen.
Thank you 😆
One question for you
.
Where to install Voltage protector (like MCB)
I have 2 meters: Grid and Solar
MCBs will come after the RCD
What software did yo uses to make this demomstration of the coonnection
PowerPoint animations
@@ElectroAcademyEA do you have toturial about it
@@janjanboquia6738 ua-cam.com/video/hTqaG44Nr34/v-deo.html
Powerpoint tutorials are rare in youtube.
Above is one on animation, but not about wiring work.
I also just started exploring powerpoint on my own and practiced it.
Difference between electromechenical rcbo AC type rcbo and A type rcbo
Will do a video on RCBO later
👍👍👍👍👍👍🙋🙋🙋
Thank you
Good equipments not damage føre ues to saruch
Manufacturing Surge protecotor Devices .OEM &ODM
Good
I think you connected reverse MCB wiring
Selecting of the supply in and out of the breaker, explained in the video.
Good work but quality of the video is too poor.
🙄 thank you for the comment.
@@rafiullah2861 did you mean video resolution or the quality of content? For me it s well explained.
@Be-Always_Informed Thank you
This diagrama refers only for CT1 type of connection and is wrong because in TT systems RCD should be before SPD and not after. Only in TNS is after. Also who the hell uses CT1 today ? CT2 is by far beter for TT and TNS for electricians
CT1 type is used at main switch board and if sub-distribution boards too are available, CT2 type should come on to the sub-panel.
(CT2 type is not there as a replacement for CT1 type)
CT3 or type 3 SPDs are also available and should be installed separately with specific systems when protection is needed for security cameras, telephone systems, PLC operation etc.
Further, RCD is nothing to do with SPD.
SPD is better to be fixed even before the main switch, but since it needs to be isolated when replacing or new one being installed, SPD comes after the main switch.
Hey Bro someone copy your video
channel name # Tech Tips
We have started doing thesae videos in other languages also.
It is the "Sinhala" language video of this.
Ats
ATS video is there.
Please go to the channel and check.
Tell me in Hindi so that I can also understand. I don't know English.
Please try CC on settings.
Goto settings > select captions > select auto-translate > select Hindi.
You can read hindi translation on the screen.