The electric extension cord by its own hands is quite simple and useful. It will cost less and will last longer. In addition, having mastered the calculation technique, you can make a network extension cable for your own requirements: any length and with a different number of outlets. The calculation algorithm is as follows. First, the total power of the connected electrical devices is counted. Then there is a current that is equal to the power divided by the voltage. The voltage value is assumed equal to 220 V. By the current value found, you can already select the outlet and the plug. Now it's up to the choice of wire. First of all, it must be flexible from a multi-wire copper core. An important parameter of the wire is its cross-section. To determine it, you should divide the current value by the recommended current density. The current density for copper stranded wires can be taken as 10 amperes divided by a millimeter in a square. Based on the calculated cross-section, the nearest of the standard series is selected upwards.
Негізгі бет Correct electrical extension cord by your own hands
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