Surge Protection Device : How to Select the Best Combination for Your Home / Learn all about SPD.!

#Surge_protection_device_installation and selecting the correct #SPD to protect your electronic equipment is well explained here.
#Surge_Protector is also called #surge_arrester and is primarily designed to protect against #transient_voltage surges, that appear and disappear in just a few microseconds.
Although the duration of these spikes are very short, large single surge events such as lightning, can reach some thousands of volts and can cause immediate damage to the equipment connected to a circuit.
These surges cannot be stopped using conventional over current circuit breakers or fuses, since operating time of those switches are not quick enough to detect these fast appearing spikes.

However, lightning strikes account for around 20% of total transient surge activities only.
The remaining 80% of surges occur internally, when a large motor starts or due to another power line fluctuation fault.
Although these surges can be of smaller in magnitude, with a higher frequency of occurrence, and with continued exposure, they can degrade sensitive electronic equipment within the circuit.

Science behind the selection of SPD Type 1, 2 and 3, is explained here nicely with fine animation work.
Installing an SPD on to an electrical panel board is also well explained here.

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[kabandajamir]

The world's best teacher thanks sir

[naijawindandsolar]

Excellent explanation on SPDs. Now I know what the various variables (Uc, Up, In, Imax) written on SPDs mean

[abdullahr]

Excellent information, even ChatGPT could not give it.

[DanBurgaud]

5:00 This waveform is for a 230V LN (as the case for Europe's electrical standard).
But for a 240V split phase (as in USA and some part of the world), we get two 170V LN waveforms, one being opposite of the other.
Having said that, should n't we use a lower Voltage rated SPD?

[JaykeSapalaran-iqqs]

Great video information 👍❤ thank you for sharing your knowledge and experience 🇵🇭🫡

[unlimitedfun]

I bought 40ka Uc 385V for single phase 230volt AC line.

Is it properly work my house???

Please reply me

[fast.life.]

my requirement is protect appliance from high/low voltage and from lightning which one should I install? Or both?

[AndreKochDre]

This is so confusing! Do I need a type 1 SPD installed if I have a Type 2 installed at the entrance of the circuit? If I do need a Type 1 as well, then can I install it along with the Type 2 (same location)?

[palabinash]

Are there different SPDs for AC & DC?

[houdinimiii]

What if I have a spd with the following rating installed in a 230VAC Line-Line sytem.

Uc =275v, In =20kA Imax=40kA, Up=1.8kV

Approximately how long the spd will fail(turns to red) if the voltage spikes around my power system ranging from 280-380vac?

[iwillfindthepeaceaoneday.]

how far the spd 3 should be away from spd2?

[konachaudhury]

Why showing 3 phase SPD. Do anybody use 4 pole SPD at home?