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
WICKERWORK IN RUSSIA
The oldest crafts - weaving - has always been honored in Russia. And was put on the importance often above all else. Even mentioned: "It pletenica about the gold pure." And why not just...
THE WINNERS OF THE PILOT CLASS
In the summer of 1981 in Moscow took place the traditional competition for experimental model airplanes. Today we introduce you to models — winners of these competitions. Student A....
