Can Google AMP make the web faster without taking over the web? | Lrd12 Overload Relay

Heat is an issue at high current for sure. But you only need a few milliamps (approx 200) across the chest, to disrupt your heart to kill you.

The TLDR; is – “In high voltage systems clearance according to EN60065:1994, 3 mm is required for Class I and for Class II, 6 mm is required in mains operated systems (240VAC)”

During service calls, being able to identify undersized conductors can help resolve compressor start issues or intermittent trips of breakers or fuses. Knowing appropriate and inappropriate breaker and conductor sizes will save you and your customers time and money.

UL rule of thumb for shock hazard: 1.5mm / 60mils distance between a hazardous live conductor and something touchable for single insulation level protection (double that for double insulation).

Company Registration Address: 乐清市虹桥镇蒲岐北门村（乐清市三星水产品有限公司内）

So you have to put new wire to have proper L1 anyway, you might as well put one that will serve properly 7times faster.

I think that one of the statements that stuck with me the most while doing LV operations training was from a doctor who said “If you are admitted to my hospital with electrical burns then I will do my utmost to make sure that your family get here before you die”

I love the concept and the build. But does potting with epoxy resin have enough strength to hold magnets in place? I did not see any mechanical fastners holding magnets in place . If epoxy cracks I see magnets pulling out of metal bracket and failure .Over to someone with engineering experience please.

“FEW HUNDRED’(???? !!!!) – I remember when I bought my ELR, Cadillac would allow $3000 for purchase and installation of a $500-$999 EVSE along with installation. In those difficult installation cases, the owner would have to fork over the difference.

Ah yes, the typical “Let’s leave that discussion for somewhere else” when the downsides of EVs are pointed out…

The stakes are much higher when you’re connecting your project to the house mains, though, as [Mattias Wandel] recently learned when the solid-state relay controlling his water heater failed, with nearly tragic results. With aplomb that defies the fact that he just discovered that he nearly burned his house down, [Mattias] tours the scene of the crime and delivers a postmortem of the victim, a Fotek SSR-25DA. It appears that he mounted it well and gave it a decent heatsink, but the thing immolated itself just the same. The only remnant of the relay’s PCB left intact was the triac mounted to the rear plate. [Mattias] suspects the PCB traces heated up when he returned from vacation and the water heater it was controlling came on; with a tank full of cold water, both elements were needed and enough current was drawn to melt the solder build-up on the high-voltage traces. With the solder gone, the traces cooked off, and the rest is history. It’s a scary scenario that’s worth looking at if you’ve got any SSRs controlling loads anywhere near their rated limit.

With a smart charger the EV can be recharged at night and unless you are using electric strip heaters, even a 100 amp service panel can suffice. From 10 pm to 6 am there is no significant electrical demand (only the fridge or the furnace motor) to compete with the 32 amps for the EV. A drawback to L1 charging is having to leave the car plugged in for 3 times as long and having a power cord to trip over in the garage.