Above, a colleague gave the pattern for resistance. According to the formula, the resistance depends proportionally on the length of the cable and inversely proportionally on its width. That is, the longer the conductor is, the greater its resistance, and the thicker it is, the lower its resistance, and therefore the greater the resistance is of a long and thin conductor.
the predecessors are 100% right and it is good that the new electrode person asks such a question, after all, we are here to help. Well, it should be mentioned that if the wires are made of materials with very different specific resistance, sometimes it is impossible to determine which of the cables has the greater resistance, but rather Krzysztof meant wires made of the same material
Please advise if it is better to buy a braid for a vinyl shepherd with copper wires with a resistance of 0.07 (Ohm / m) or a steel braid with a resistance of 0.21 Ohm / m. The length of the fence loop is about 1000 meters. Is the above-mentioned difference in resistance will apparently affect the annual electricity consumption and the bill? The energizer on the rating plate indicates the load (max?) of 16W. Vinyl braid has lower resistance but is more prone to breakage, steel braid is much more durable, hence the dilemma of quality vs durability vs cost of ownership. Thank you in advance for your support! Thomas
And is it supposed to be a power supply cable or a fence? 1000m of the one with the higher resistance will have 210 ?, for the fence it will be nothing.
A separate matter, as with durability, because it is probably solid, it is more susceptible to corrosion (but it has greater mechanical strength until it rusts).
Thank you, this cable is not a power supply, but a "deterrent" cable to which the current from the shepherd is led (limiting the movement of animals)
In fact, copper is less susceptible to rust, but the vinyl cable under the influence of UV will also deteriorate after some time and the steel cable, as you say, will rust faster (galvanization protects against rust only for a limited time? A year / two / ...?)
The discussion centers on the resistance of electrical cables, specifically comparing long and thin cables to short and thick ones. The resistance (R) is determined by the formula R = (ro * l) / s, where 'ro' is the specific resistance of the material, 'l' is the length, and 's' is the cross-sectional area. It is established that longer cables have greater resistance, while thicker cables have lower resistance. Therefore, a long and thin cable will exhibit higher resistance than a short and thick cable. Additionally, considerations regarding the material of the cables, such as copper versus steel, and their respective resistances are discussed in the context of practical applications, such as fencing and durability against environmental factors. Summary generated by the language model.
