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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for January 29th, 2021

Long video to explain a 1 part water 2 parts rubbing alcohol works great as de-icer (This Weatherman Reveals The Secret To Defrosting Your Windshield In SECONDS – YouTube)

Posted by jpluimers on 2021/01/29

Save yourself the data fee, 1:50

–jeroen

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DC connectors used by APC :Anderson Powerpole – Wikipedia

Posted by jpluimers on 2021/01/29

Different keying for each colour in the SB50 series. Note that black and grey are keyed the same making them interchangeable.

Different keying for each colour in the SB50 series. Note that black and grey are keyed the same making them interchangeable.

I bumped into [WayBack] Anderson Powerpole – Wikipedia through Cheap VS Expensive Solar Panels | 12v Touring | Project Cyan – YouTube.

APC uses some of these connectors (I have seen the yellow, blue and grey ones) in many of their systems: [Archive.is] apc battery connectors – Google Search

Images from wikipedia.

Quotes from the article:

Powerpole connectors are physically and electrically hermaphroditic, thus avoiding the need to worry about which end is the plug and which the socket, or which end has the correct polarity.

The Anderson Powerpole connector is more expensive than the older de facto standards of the two-wire trailer plug and the Molex connector, but provides a more reliable electrical connection (both mechanically and electrically), and is easier to adapt to a wider range of wire gauges.[19] Another advantage over the older trailer or Molex connectors is the Powerpole’s superior ratings to withstand 100,000 no-load insertions and 250 hot-plugs at full load. The specific hermaphroditic nature of the powerpoles is a significant advantage since batteries can be both a power source or a power sink, a power supply can be connected to a radio and/or a battery, and multiple batteries, radios, and/or redundant power sources can be connected in parallel using the same power distribution panels.

For use in amateur radio, the community has adopted a standard color code, polarity, and specific physical arrangement for assembling pairs of Powerpole connectors. One red and one black powerpole housing can be physically arranged in 4 topologically different mechanical orientations (red left, red right, red top, red bottom – when viewed from contact side with tongue up), 2 of which are mechanically incompatible (connectors won’t mate with ARES) and 1 is electrically incompatible (will mate but reverse polarity) with the ARES standard; there are also additional unusual configurations in which one housing is rotated 90 degrees. The standard is red positive and black negative. When viewed from the contact side, a mnemonic for remembering the arrangement is: “Red [on] Right — Tongue [on] Top” (note the first letter alliteration).

Anderson Powerpole 15/30/45 ampere housings and contacts (front view)

Anderson Powerpole 15/30/45 ampere housings and contacts (front view)

Cutaway view of housing (side view)

Cutaway view of housing (side view)

–jeroen

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Detecting what language or script a run of text is written in, redux – The Old New Thing

Posted by jpluimers on 2021/01/29

Interesting: [WayBack] Detecting what language or script a run of text is written in, redux – The Old New Thing.

Do not confuse language with the scripts in which one or more languages can be written, and much more is covered in it.

Related:

–jeroen

Posted in Development, Software Development, The Old New Thing, Windows Development | Leave a Comment »

 
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