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.
It takes volts to push amps, and if your body tripped a 1A breaker you’d be dead. For shock hazard, 110V is safer than 220V regardless of the size of the circuit breaker. But for a given power draw the possibility of overheating your wiring is lower with 220V, which is why I use it in my (American) shop whenever my equipment supports it.
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.
The list of absolutely required tools is missing the appliance tester. e.g. something like this http://www.fluke.com/fluke/m2en/Products/category.htm?Category=PAT or https://www.gossenmetrawatt.com/english/ugruppe/testingofelectrappliances.htm
Ah, right you are. I’m out of date — I last dealt with UK power in 1981, and have not been back since. Thanks for the update.
In San Diego (where I live) residential electricty rates start at 15 cents per kWh. Lower electric rates are available if you charge the car at night, but you have to agree to pay a crazy-high rate of 53 cents per kWh at other times. That wouldn’t work for me, but YMMV.
Google’s Cloud AutoML has been available since January to let users train their own AI tools without any previous coding knowledge. The drag-and-drop tool lets anyone create an image recognition tool, which has a variety of use cases such as categorizing photos of ramen by the shops they came from. You can catch a glimpse of this process in the video above, in which different photos of Waldos are fed into the software.
This certainly looks like one of the more impressive ARM-powered Windows 10 laptops we’ve seen so far. The first few devices ran on the same Snapdragon 835 chip found in Android smartphones from last year, and they showed early promise with some issues that still needed work.
“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.
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If you do not know the exact value of each cost, you could enter an estimated percentage based on the cost of goods.
But if the power supply isn’t made for the 110-120 volt market, then yes, this can be a legit concern.
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