Floor Receptacles for EV Charging. Code Compliant?

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retirede said:
When I saw that picture online, the caption said it was in London. If true, the NEC wouldn’t apply.
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Maybe. Someone sent it to me on FB, no location or date mentioned. They appear to be left hand drive, but I know back in the day that was optional and could go either way

On edit,,,,, Maybe they are right hand drive, damn old eyes
 
www.gettyimages.com

These lorries were used to carry goods around goods depots and to...

These lorries were used to carry goods around goods depots and to deliver them to offices in towns. The Midland Railway owned a variety of road vehicles. At this time horse-drawn transport was still...
www.gettyimages.com

Getty Images lists it at St. Pancras station, London, 1917. It also states that they are "refueling". No mention of being electric.

Rob G, Seattle
 
marmathsen said:
www.gettyimages.com

These lorries were used to carry goods around goods depots and to...

These lorries were used to carry goods around goods depots and to deliver them to offices in towns. The Midland Railway owned a variety of road vehicles. At this time horse-drawn transport was still...
www.gettyimages.com

Getty Images lists it at St. Pancras station, London, 1917. It also states that they are "refueling". No mention of being electric.

Rob G, Seattle
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Captions aren't always correct-- especially if someone who's not aware that electric vehicles have been around for a long time!
 
If we're talking modern vehicles-- I think it was This Old House showing electric vehicle recharging with a giant-sized system. You drive your vehicle over a coil on the floor, just like the coil you plop your phone on top of (but bigger). No plugging in.
I wonder at the efficiency of such a system. Air-core transformers can't be that efficient...
 
PaulMmn said:
Captions aren't always correct-- especially if someone who's not aware that electric vehicles have been around for a long time!
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Yeah I was assuming Getty would have correct information but I suppose they may not have much of a verification process when it comes to historical photos.

I wasn't originally questioning that these were electric vehicles. It was only after reading the caption that I realized that it wasn't obvious if those are cables or hoses.

Rob G, Seattle
 
PaulMmn said:
If we're talking modern vehicles-- I think it was This Old House showing electric vehicle recharging with a giant-sized system. You drive your vehicle over a coil on the floor, just like the coil you plop your phone on top of (but bigger). No plugging in.
I wonder at the efficiency of such a system. Air-core transformers can't be that efficient...
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Yeah I've also wondered about a system similar to what you describe. Or some sort of system with a robotic arm that could make a physical connection.

Rob G, Seattle
 
Electric 'milk floats' were very common in the UK for many years.

I doubt there are many combustion fuels where it would make sense to connect lots of vehicles in parallel for a slow refueling. Maybe if it were some sort of gas absorbed in something for the fuel tank, rather than a liquid fuel or a gas under high pressure.

I vote for electric charging but am curious.

Here is another claim of electric:
scanalyst.fourmilab.ch

Electric Vehicle Charging, July 11, 1917

This photo was taken on 1917-07-11 at the Midland Railway St Pancras Goods Depot in London. Electric trucks were used for local deliveries in London. The trucks had a range of around 30 miles (48 km) per charge.
scanalyst.fourmilab.ch scanalyst.fourmilab.ch

Jon
 
OK, I'm fully on board with these being electric.

The vehicle on the left says "Edison Accumulators" which as far as I can tell is a battery.

The Edison Accumulator 1 - Nature

MR. W. HIBBERT read a most interesting paper on the Edison accumulator before the Institution of Electrical Engineers last week. Since the first announcement of Mr. Edison's invention nearly three years ago, very little of an authoritative nature has been published about the cell; the paper...
www.nature.com www.nature.com

Edison accumulator - Edison accumulator - Galvanic cells - Electrochemistry - Physical chemistry - Catalogue of experiments - Chemistry - Chemistry

<P>Thomas Edison patented his accumulator in 1908. This was the first steel secondary element patented. In a secondary element or accumulator, the back reaction of the electricity generating reaction is possible. Thus, the cell can be charged and dischar
www.leybold-shop.com www.leybold-shop.com


Then I found this article which is a fun trip back in time. It's from [The] Commercial Motor magazine out of the UK.

Edison Electric Commercial Vehicles. | 22nd July 1915 | The Commercial Motor Archive

'Edison Electric Commercial Vehicles.' first printed in the 22nd July 1915 issue of Commercial Motor
archive.commercialmotor.com
 
The electric Klaxon horn, and lights are a giveaway. Most spark ignited internal combustion engines of the day used high tension magnetos for spark. Electric lighting and horns were only really found on higher end cars. Typically trucks used acetylene gas for lighting
 
drcampbell said:
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Don't confuse efficiency with effectiveness. Air-core transformers might need to be a lot bigger for a given power capacity, but that doesn't necessarily mean greater losses. (and they don't suffer any magnetization losses)
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But do we even really need/want them for electric trucks. Sure the high dollar electric car crowd is going to want them if for no other reason than "Conspicuous Consumption" (Thorstein Veblen) factors. But do we even want to add extra complexity and weight to delivery trucks when a simple cord and plug will do?
 
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