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
INSTEAD OF SEWING — DRILL
In No. 6 1981 "M-K" talked about how the members of the design circle agricultural modeling of Chernigov obsut after the tour on the kolkhoz apiary has designed the installation for...
THE CREATORS OF “FIRE ARROWS”
The emergence of missiles in Russia noted by the chroniclers in the Pskov chronicle of the XV century In 1680 in Moscow organized a special "school" for the production of lighting and...
