Hi all - relatively new to Solar but I’m looking for opinions on fitting DC SPDs on a TNCS installation.
Are we just earthing the SPD from the CU/met or does anyone fit a dedicated rod instead?
Thanks
Has anyone fitted an SPD to a schneider standalone AFDD DB.
Isobar P B Standalone Active distribution board, Acti9, 24 AFDD ways
This board only takes AFDDs so there is no where for the SPD MCB to go. There is a DIN rail next to the main switch. The SPD comes with a separate enclosure.
Acti 9...
Hi, I’m at a job on a grade 2 listed property with 5 different single phase distribution boards, the client wants sockets moved to new locations however the circuit I’m working on has a 32a rcbo but no SPD, all other circuits have to protection either. Any advice?
Thanks
Hi all,
Grateful for your expertise regarding my confusion on the below.
Context:
French rural domestic property
Single phase supply, TT earthing
Supplier side RCBO (standard in France, usually next to the meter) - "disjoncteur de branchement" - 500mA, single pole protection, unspecified...
Hi
I always thought installations were safe at the time of instalment etc, the Distribution Boards at my works were installed over ten years back.
Our company just had its EICR done. The tester gave us a C2 for a number of DB’s which don’t have Surge Protection Device installed, these DBs with...
Under amendment 2 of the BS7671, there is now a requirement to fit an SPD as standard.
I am due to install a new outdoor socket circuit on an old consumer unit which doesn't have an SPD. Is it ok to do this installation without the SPD?
Hello,
I was looking at installing a SPD into an existing split load RCD BG consumer unit. In the instructions for the SPD it states that it may be positioned before or after a RCD but I have always been of the idea that the SPD needs to go before the RCD due to the RCD potentially tripping...
Hello!
I'm struggling to find an answer to this question online. I'm new here btw - I'm a DIYer with a physics degree
Currently when my fridge motor turns off, I get a transient voltage spike on other devices plugged into the same circuit (i.e. an internal surge)
If I upgraded my circuit...
Following the tragic tale from @telectrix about lightning damage to phones and modem leading to a serious loss of beer money I decided to take a look at an el-Chepo SPD from Amazon to see if it looks worth considering. This one:
https://www.amazon.co.uk/dp/B08FRN2569
When it arrived the box...
Hi. We live in an older house and we are doing a loft conversion. We do not have an SPD on the connection to the grid and the builder's electricians insist that we must have one, otherwise he can't sign the certificate, but he doesn't want to give me a reason. We have a few consumer units under...
Hi there ,
Currently doing a college project where i need to select protective devices for the contract. I'm now at the point of selecting SPDs and had a couple questions. I have chosen MCG RCBOs for my circuit breakers in this project for all my boards apart from the board supplying...
Now that SPD's must be fitted regardless, how does this stand from a sub-main perspective?
Went to look at a job and they want a supply to a pre wired Shepherds hut 50M away with no SPD as it has been sat unconnected for a couple of years.
The main incoming is entering an old barn that has a...
Inspecting and testing a consumer unit as part of my training and have noticed that the circuit breaker for the SPD is on the RCD? I am unsure weather this is acceptable as I haven't come across this configuration and I am pretty new understanding SPDs could one of you more experienced people...
Hello,
I have a Leviton 51120-1 SPD connected to a residential (120/240V) 200A breaker/service main panel – The 51120 is fed from (2qty) – 20A breakers in the service panel – All wires connected to the 51120 (L1&L2 hot, neut,& ground) are 12 AWG stranded conductors – The install instructions...
Hi all!
Does an SPD have to go at the front end next to the main switch or can it be fitted with its MCB at the end of the row of MCBS on an existing CU to the far left?
EG main switch on the right, end of MCB row on the left will have the OCPD for the SPD, and then the SPD sat to the left of...
Is there a reg anywhere that states that you have to use the same make SPD inside a consumer unit. I know there are with MCB's as they obviously have to sit on the same bus bar but an SPD just slots in and has flexible cables wiring it up.
I have come across a failed SPD, I thought I would take it apart and post pics for people to discuss.
It appears to work by melting an alloy or type of solder to break the connection.
I guess this is after the MOV decreases its resistance and increases the current.
Hello all,
i am fitting an Spd to an existing installation and looking through installation instructions and it has a diagram where the feed for an Spd located externally has come from the bottom of the main switch. Does not seem right to me. Just wondered what people’s thought were on this. I...
Hi All, just carried out an EICR on a rented property that has mains smoke detectors, there is no SPD fitted and as I understand any safety service should be protected by an SPD, what code would you give this.
Hi,
I was wondering if the wylex/Proteus SPD Isolators where dual isolator, they have 4 terminals at the bottom, can you use them to take 2 sets of tails of them.
And what size earth should be used for the SPD when using 25mm tails and Is connecting it in parallel to the main earth correct...
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