On the switchboard garages, workshops and home labs often use the same sockets to connect consumers designed for high (220 V) and low (12V) voltage. The danger is the inclusion of 12-volt device in a 220-volt outlet.
To avoid this, I propose to modify the 12-volt plug as the most “risky” of an erroneous connection to the high voltage. All sorts of labels and tags eventually disappear. But if the single pin plugs somewhat shortened — it will be a constant visual reminder.
A. VINOGRADOV, Mogilev
Recommend to read
WHEN THE BAR IS ROUND
To cut a pipe or wood block round section diameter accurately is difficult. In this case, will help the jig from a wooden block having a groove, the width and height of the corresponding...
AS IF ON ANCHOR
In some areas of the apartment (kitchen, hall) door, usually left open. And fix it in this position will help ordinary magnet, mounted on the wall, but if the handle is steel. The magnet...
