Crossy

This ^^^. But do verify that your switch is in the live side of the supply, a switched neutral can have similar effects.

I've stayed out of this one, but a couple of weeks ago we were awakened to the sounds of a pretty large fire not a million miles away. Having looked outside and determined there was no immediate threat to our place we went back to bed, sleep punctuated by what sounded like every fire appliance in the area attending said conflagration. Enquiries in the morning revealed that it was a car that had gone "whoosh" in the parking of the resort just up the road, it had taken half a dozen other cars with it before being brought under control. Guess what, it wasn't an EV or hybrid! No actual detail of course. Meanwhile, the parking at the Yellow Line Park-n-Ride is prepared for anything short of nuclear Armageddon!

A few years ago, walking back from a beach bar in Changi Village (Singapore), we were approached by a couple of the local "people in skirts". There were suggestions!! My mate said he wanted to make love with a woman, whereupon one of the "ladies" said, "ah, you'll like my friend here. He's got a pu55y!!". We didn't take them up on the offer!

Didn't we just have a "great minds" moment on a different thread??? Spooky!!! Do do do do, do do do do!!

Yeah, but they really are men!

General wisdom is that an AC rated switch can handle about a tenth of the AC voltage rating on DC. These knife switches have a large contact clearance so are probably capable of a much larger AC voltage than they're rated for (insulation notwithstanding). Move it briskly when swapping and give it a try.

Yeah, no issues doing that. You could also run the two poles in parallel for extra safety margin.

Great minds and all that carp ???? It's not rated to actually switch DC, but if the load is small when you switch, I reckon it will be the cheapest way to go.

Daft thought. Do your BMS's have an on-off switch you can use to isolate one or other pack?

Also, do you have a separate charge controller and inverter or an "all in one" inverter and charge controller?

Are you intending charge and discharge via this switch? Manual changeover or auto? Will it need to switch whilst under load?

It's worth noting that our OP has LiFePO4 batteries.

Yeah, if the drain is blocked and you have a shop-vac (wet-n-dry) you can sometimes clear by sucking on the outside end of the drain. Do not blow or you may end up with a load of stinky water in your room ????

We listen to our members ???? Sometimes Same place, just a different name.

Menu here https://magicpin.in/Hyderabad/L-B-Nagar/Restaurant/Eat-Cock-Resto-and-Jail-Mandi/store/448637/menu/

My friends at https://www.facebook.com/groups/thai.species.id/ say he's a Cox's Mud Snake (Homalopsis mereljicoxi) not dangerous.

I'm 99% sure it's 2.4 x 1.2 m or thereabouts in a myriad of thicknesses and qualities ranging from "marine" to "shuttering". You really need to go and look at what they have and pick something suitable. @sometimewoodworker is your man.

I'll move this to The Pub I think.

Probably older than I am ... University lecturer - "Have you completed your experiments with pendula?" Student - "Yes, we are now sat on our ba, doing our sa". Fetching my coat ...

Many moons ago I was working in the RN calibration lab, at Monks Park in darkest Wiltshire, calibrating AVOs. We had an AVO come in for cal. still in its "leather" case, slightly unusual but not unknown. Upon opening the case we found out why, inside was a kit of parts that had been, at one time, most of an AVO. It turned out that Jolly Jack Tar was servicing a radar antenna and had "accidentally" dropped his AVO off the mast. Contact with the rather unforgiving steel deck converted said unit into a kit. It was apparently less career-limiting to just send it for cal. than to report it damaged.

Just to confuse: - The MEA area (Bangkok) is 230V nominal. The PEA area (everywhere else) is 220V nominal. Both are supposed to be +-10%.

No worries, these things happen. It wouldn't be the first time someone has been misled by faulty test gear (this t-shirt I have). But 238V is still rather high (220V +8%) so it's worth keeping an eye on it a low load times (middle of the night), just in case it gets excessive.

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