5 kW Photovoltaic Installation: Detached Solar Panels, Inverter Safety, and Cable Solutions

Hello, I am asking you for advice on photovoltaic panels. This year I set up a 5 kW installation. The installation was installed on the roof from the east and west side on a gable roof at an angle of 45 degrees. I decided that the panels will be moved to the ground from the south. The problem is that the frame with the panels will be placed on a plot where it is not fenced. Due to the expense of pv installation this year I will not be able to fence the installation. I wanted to ask would it be a good solution for me to leave the inverter in the present place (I am afraid that theft could occur) then let the earth cable YKY 4x2.5 mm about 16 meters from the inverter. Possibly connected with MC4 connectors Target after fencing The inverter will be near the pan eli. I thought to use the original PV cables inserted in a conduit and buried in the ground, but it probably will not be a good solution, therefore I am asking for advice what will be the best solution at the moment For which I thank you in advance.
Ps
Can the MC4 connector be earned for a 2.5mm earth wire?

synology1 wrote:

I wanted to ask if it would be a good solution for me to leave the inverter in the present place (I am afraid that theft could occur), then let the earth YKY 4x2.5mm CABLE about 16 meters from the inverter with the ground.

Why YKY and why 4 x 2.5mm? A YAKY cable will be cheaper and better and provide a conductor cross-section of at least 16 mm.
You can also give an AsXSn overhead cable, also with a conductor cross-section of 16 mm, you can buy it online for up to PLN 5 per meter.

Following @retrofood's advice to give you a 4x100 cable - as usual, old school electricians and plumbers tend to oversize everything.
And now seriously - if you cannot afford to run 4 solar cables from the switch disconnector at the panels to the inverter, pull the YLgY 4x4 in a conduit and you will have a drop of 0.16% at a distance of 16 meters.

I removed the subsidiarity of the post. [retrofood]

Moderated By retrofood:

For advice on laying the installation cable in the ground, in addition, in a conduit, I give a warning. Item 3.1.11 of the Regulations.

Bobyx1968 wrote:

Following @retrofood's advice to give you a 4x100 cable - as usual, old school electricians and plumbers tend to oversize everything.
And now seriously - if you cannot afford to run 4 solar cables from the switch disconnector at the panels to the inverter, pull the YLgY 4x4 in a conduit and you will have a drop of 0.16% at a distance of 16 meters.

As I wrote earlier, I was not sure if I could use a solar cable in the ground, if such a cable in the conduit would be appropriate) Solar cable BC-SUN PV1-F 4mm2 0.6 / 1kV if not, I would ask for a symbol of the solar cable that I could lay In the ground). A colleague of retrofood also wrote about the cable routed over the top. At the moment I want to run the cable through the ground. I think that a solar cable would be a good solution, I would use it in the future to expand the installation. At the moment I take into account the cables that you have proposed.

Connect a 4x 2.5mm2 earth cable and connect two wires, you will have 2x 5mm2. There is no need to overpay for a solar cable.

Remove your subsidiarity for the YAKY 4x16, because it has the same value as my conduit - @synology lead the solar cable in the arot pipe

Moderated By retrofood:

I deleted it so you wouldn't complain. And for the next hint about laying wires or cables in a pipe, I will give another warning.

Thank you all for the hint, I think that the best solution for me after reading your posts will be a solar cable and the use of arot pipe. Ultimately, if I do the fence, thanks to Arot I will drag the 4x2.5 cable that I will connect to the inverter and I will use the solar cable for further expansion of the panels. Below I have pasted the info about the photovoltaic cable, it turns out that it can be used in the ground. me .

PV 4mm2 TOP CABLE cable - BLACK AND RED TOPSOLAR

ZZ-F - Cables for photovoltaic installations.

CONSTRUCTION

Structure of conductors - Fine-wire, tinned copper strings, class 5 (flexible) according to EN / IEC 60228
Insulation - The insulation of the conductors is made of halogen-free, thermosetting rubber (type EI6)
Outer sheath - Outer sheath made of halogen-free (LSZH) thermosetting rubber (EM8 type). Shell color red or black.

APPLICATION
Topsolar PV ZZ-F are cables for photovoltaic installations. They are suitable for movable connections and for permanent installation. The cables are intended for direct connections between photovoltaic panels and for connection of panels with a DC / AC converter. They can be laid directly in the ground.

kokeszkov wrote:

synology1 wrote:

I would ask for a solar cable symbol

What is it? Another money extractor from the wallets of naive cash spenders?

The solar cable has a coating resistant to UV radiation (useful in the ground as an incense for the dead), and can be operated with a voltage of up to 1.6 kV DC. It also has an advantage in price ...

Added after 1 [minutes]:

synology1 wrote:

Thank you all for the hint, I think that the best solution for me after reading your posts will be a solar cable and the use of arot pipe.

Nonsense.

retrofood wrote:

Nonsense.

retrofood so what do you think would be the best solution? if it did not cause a problem, I would like to know your opinion. The truth is that having the knowledge I gained, among others, on the forum, I would not have to transfer the panels to the frame today because they were immediately made from the south, unfortunately I was convinced that from the east and West will be good too. That's why I started this topic because I need advice on what solution will be best for me and it is not about the fact that I want to buy a cable very cheaply. I would like the cable to be selected for my installation. I have already learned during alarm installations that using a branded cable can work for years.

synology1 wrote:

retrofood so what do you think would be the best solution?

After all, I wrote you, why repeat myself?

PS. Cables in the ground are covered with pipes only in some places, e.g. under passages, roads and intersections with other installations, e.g. gas.

http://bezel.com.pl/index.php/system-elektroenergetyczny/linie-kablowe

Thank you and everything is clear.