Crossy

But it uses an Android emulator!

For the PC it's a website https://home.solarman.cn/main.html I think I set up the Android App first then used the same log-in details (it was a while back).

308403dc-cb1d-434d-ae1d-9ccd95e93610.mp4

Inverters are, I understand, zero duty, so just the VAT and handling charge. A handy-dandy duty calculator is here https://www.simplyduty.com/#calc

Yeah, thought provoking but often strangely humorous, maybe that's why we remember them. Sadly the cartoon that goes with this seems to be lost to time, but it still rings true every time I see Thai on-site operations:- Sir Isaac Newton told us why, an apple falls down from the sky; and from this fact it’s very plain, all other objects do the same, A brick, a bar, a bolt, a cup, invariably fall down not up; and every common working tool is governed by the self-same rule. So if at work you drop a spanner, it travels in a downward manner. At work, a fifth of accidents and more celebrate old Newtons law. For those who have no idea what we are on about, this one isn't lost.

The CIF is Cost, Insurance, Freight. You pay duty on everything, then VAT on the total ???? It's like this globally so not just a Thai "issue", many don't understand where the "excessive" duty and tax comes from. At least when buying from a local seller that's all handled before you see the price.

You want the path from the surge suppressors to ground to be as short and straight as possible. Lightning surges are very fast and anyone who's had dealings with Radar will know that fast edges have an annoying habit of going straight on at bends in the current path. Also. If you have a few kA going down even .1ohms that's hundreds of volts just dropped on the resistance alone, and the inductance of a straight wire can become significant at the speeds we are looking at here. Google "Lecher Line" and/or "straight wire inductance" for some fun reading! Lightning surges are decidedly weird, you can't use conventional electrical theory.

If it's coming from China on HS code 8507.60.0000 then expect 10% duty plus 7%VAT on the CIF value plus a "handling fee".

Fairy-nuff. It really depends upon the price-point our OP is renting at. In the past I've spent rather more than 1,500 Baht on a tool (the printer is definitely a tool) for a specific "5 minute" job which has then sat on the shelf for an indeterminate time before being needed again. If it makes the job easier (and maybe more professional looking) then it's a go and label printers do tend to find themselves jobs. But that's just me ...

Yeah, that would work, and definitely prove to the renters that @carlyai is a tightwad landlord ????

Ours are on short lengths of 10mm2, but generally the bigger the better, whatever is in stock ????

Yeah, that's what I've done for breaker labels, stuck on with "Sticko" or "Pritt" (glue stick). The problem with light switches is that they get sticky user fingers all over and paper labels don't really like being wiped with the proverbial damp cloth.

There is on ours, yours may be different. Without knowing how/where your inverter is mounted relative to the house and the existing rod it's very impossible to give specific advice, one size does NOT fit all. You can just see the "earth" symbol poking out from behind the green sleeve.

And just how does that solve the problem?

You could try the manufacturer, many of the Chinese makers actually have pretty good support.

The inverter will have a terminal on the casework marked as ground. That would depend upon how far your inverter etc. are from the house ground. You might be better running as a TT island if you are far from the existing rod in which case the inverter earth lead would go to the local ground too.

Sorry MJCM, I totally forget about this post. Some quick measurements and schoolboy trig. gives about 3.2o of slope, panels are parallel with the roof and not adjustable. We are about 14o N so the panels are a bit flat for the classic "use your latitude" but they are working just fine.

Yup, and don't forget to bond the inverter ground connections too.

Yeah, that's how I would read it too, but it does follow "When solar energy and batteries are insufficient" - zero solar is also "insufficient". Does it allow you to set the maximum grid charge current (set to the minimum)? It might be worth asking the seller if he knows how it behaves at night.

Size your surge arrestor to whatever the maximum input voltage of your inverter is. 1kV on a 500V input is going to be OK but 800V would be better. For the MCBs, again look at the maximum voltage you are going to use and go over a bit, those 1,000V DC units would be good for pretty much any domestic level string inverter. You can use the same ground for everything, if you have a metal support structure (like our car port) bond to that.

Have a look at the system @007 RED has installed, it's almost exactly what you want to do. Do you intend doing unofficial net-metering (spinning the conventional disc meter backwards) or joining (trying to join talk to @Thaifish) the official feed-in-tariff? (official system is not available to DIYers) Sofar inverters (we have two, a 6kW grid tie and a 5kW hybrid) are not cheap but they are definitely robust and well engineered, they are also IP65 sealed and fanless. If you're going to DIY have a look at my solar car-port thread.

If you have a neon screwdriver (or one of the non-contact live-wire detectors) it should light up on the screw connection to your MCBs and not on the neutral bus bar.

Enough members have found L - N reversal for it to be worrying, including one on a TNC-S service who noticed the kitchen floor over his (buried of course) ground rod was getting warm! It usually happens after a meter swap or some other work involving disconnection at the meter or the incoming side of the main breaker. Definitely not something you want!