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
VERTICAL GARDEN
The idea of vertical garden beds is not new, however this design is very reminiscent of a step-ladder, always a surprise even experienced gardeners. She designed the Moscow...
“STRUZHOK”
Wood planers used in school workshops is simple, but it does not deprive one significant drawback: the imperfection of the V-mount glands. If mishandled she tries to slip out of a plane...
