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
STEPPE BOGATYR
Every few minutes the conveyor of the Leningrad production Association "Kirov plant" comes a brand new tractor K-701 "Kirovets". Thousands of these machines working in the fields of the...
CLAMP “THREE WOOD”
When gluing different items instead of the clamp you can use a clamp consisting of two strips, wire and click. The arrangement of such clamps can be seen from Fig. S. FEDORENKO, g....
