Tip 4: Electrical wiring faults or poor contact.

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In general, for a more accurate calculation of the required cross-sections of cable and wire cores, it is necessary to be guided not only by the load power and the material from which the cores are made; one should also take into account the method of their installation, length, type of insulation, number of cores in the cable, etc.


Many people have probably heard the phrase: "Electrics is the science of contacts." This is, indeed, a fair remark, since all faults and malfunctions of electrical wiring are connected with contacts.

The causes of electrical wiring faults in iran mobile database premises – our apartments, private houses – are no exception, because all of them, to one degree or another, come down to contacts. Namely: poor contact, its complete absence, or, conversely, the presence of contact where it should not be under any circumstances (short circuit of electrical wiring – CC).

Let's take a closer look at these contact problems - the reasons for their occurrence and possible electrical wiring faults that they can lead to:

Poor contact. The main reason for the occurrence of poor contact of electrical wiring wires is most often the insufficient degree of their elasticity of compression - "weak contact". This type of electrical wiring fault very often occurs due to a large load when heating twists of aluminum wires.

Heating and cooling of aluminum wires affects their elasticity and, accordingly, the elasticity of the connection - twisting (in most cases, wires in distribution boxes were previously connected using twists).