Tuesday, 18 June 2013

Markings as warning flags

Having marking to warn you about something you forgot, can help people from doing dangers things. Two example are down here:

Carabiners:
Petzl put markings on there carabiners. Seeing a red line indicates you are forgetting something. (the screw lock that is)


On other brand screwgate carabiners I just add a red line just above the screw, when the screw is in it's open position. Copying the standard red red safety marking on Petzl carabiners. For this purpose nail polish works best. Permanent markers are not permanent enough on smooth aluminium and car paint pens are too hard and they chip.

Electric switches:
In the UK, they don't only have a very good plug design, but also have switches at the sockets. A red line indicates a socket is life. Warning the user that anything plugged in is powered.


Why isn't this idea with red lines or markings widely used in all kinds of other things?


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