How to wire a type 2 surge arrester into a distribution board - factors to consider - South Africa
Vložit
- čas přidán 30. 10. 2021
- How to install a type 2 surge arrester into a distribution board.
Further details found in the SANS 10142-1:2020 wiring standard - The Wiring of Premises Part1: low voltage installations.
very good explanation but we need more
Thank you for your detailed explanation. Very useful
Very helpful and detailed explanation, thank you!
Awesome Video, thank you
Good Day to you Sir. I'm back again after 8 months lol. Thank you for the simple yet very clear explanations. Could you please do a 3 phase surge arrestor installation using the same method as you've shown in the single phase method thank you so much for your valuable time.
🐜🐜
Good info..thanks
I think u get the wrong point about SPD need over current protection device (MCB or fuse). It is to isolate the SPD from the DB system if SPD fail, fault or damage. So you need an extract MCB or fuse as over current protection to connect between the Main MCB and the SPD, not directly connect the SPD to the main 63A MCB.
Actually in current situation over current fuse disconnector is prefer than MCB, because you don't want the MCB in between SPD and Main MCB trip during lightning strike , you want the SPD to arrest the lightning to channel it to the ground, so fuse disconnector is prefer, that is why among all the SPD catalogue they normally emphasis fuse disconnector before SPD, not an MCB.
Very useful 👌
Sir thank you so so much for your videos!
Need to ask: If the light on my surge arrester is not completely off but is slightly faded when comparing to my other (same) surge arrestors.... Is it still okay to use or should I replace it?
And I've seen that some or most SPD they don't specify the current, say for example I want to use 63 amps how will I know that it is 63 amps. And also how long can a SPD run before damaged.
Awesome ❤
THANK YOU SIR
🤓
Some double poles SPD they connect live and neutral on incoming power then earth on neutral side of outgoing power. Some they put live on both incoming power then earth on outgoing power, what's the difference. And also comparing it with single pole SPD.
Will single pole spd on load be enough? Or is it better to use 2 pole on both load and neutral?
Does the Surge arrestor on the Main DB also cover the sub DB feeding from the Main DB?
If this is a sub-db, and the main db already has overcurrent protection, do I still need to to include an overcurrent protective breaker in this db before the surge arrester?
Hi Anthony. I would love to learn the solar installation, especially the connection to the db box. Do you know any course i can attend or on the job learning program?
Good day Sir. What size of Earth cable is suited for a 600vDC SPD 20kA?
Hi sorry to be negative but is that board wired compleaty backwards. Eg should the main isolator not be on the right and rccd next to it with bus bars feeding the bottom of the mcb s. Like wise the out going cuicuits coming out of the top of the mcb s not the bottom. Look s like a very over complicated solution for a standard instalation to me.
type1+type2 uc 275v or type1+type2 uc 330v , sir which spd is better, for homes?
I'm a DIY'er and have always had a preference for building a DB Board from left to right as you show. It's like reading 😀. However I see in some standards that Neutral should always (understandably) be on the "outside". So, a Main Switch with "L" and then "N" on the right, should always be mounted on the right of the DB board. What is the ruling in SA?
Does it protect tv from internal surge, like start-off surge motor dynamo or refrigerator?
@hardstyle905 thank you
Can you do down lights or outside Piller lights
This is probable a stupid question but anyway....
I have a CBI Type 2 Surge arrestor QFL-N-2(13). The diagram printed on the device shows N wired on the top left terminal and L wired on the top right terminal , with Earth bridged across the bottom terminals. However, the electrician has wired it so that Live (Red) is connect to the top left terminal (N in the diagram) and Neutral (black) is connected to top right connector (L in the diagram). According to the diagram, this the wrong way around. My suspicion is confirmed by the fact that the surge arrestor light is off. Am I correct and if the diagram says N is left, then N should be connected on the left? Or doesn't it matter and I need to go back to Reading 101?
L or N doesn't matter if it has two separate identical blocks. If it is a 1P spd, then L & N will matter.
Where the surge attestor available
16mm2 cable?
The bent busbar is not insulated. Is it okay to leave it as it is?
No it needs to be insulated
Are these one time use or can they be reset?
They work until the flag/indicator shows red/replace, then you throw it away and install a new one.
Why does it need an over current protector if it’s not drawing current?
in case a fault occurs inside.
Can we connect output of type 2 spd to neutral instead of earth?
No