What is the maximum transmission distance for a compensation wire?

I believe the effective transmission distance for millivolt signals should be within 600 meters; references can be found below (reposted) [Also on the differences between voltage and current transmission methods]. In industry, voltage levels of 0…5(10)V or current levels of 0(4)…20mA are commonly used as methods for transmitting analog signals, and this is also a method frequently employed by programmable controllers. So, what are the differences in the ways in which voltage and current are transmitted, and when should each method be used? A brief introduction to this will be provided below. Voltage signal transmission, for example, ranges from 0…5(10) V. If an analog voltage signal is transmitted from a sending point to a receiving point over a long cable, the signal can easily become distorted. The reason is that the voltage signal experiences voltage drop losses due to the output impedance of the transmission circuit, the resistance of the cable, and the contact resistance. The transmission error resulting from this is the input bias current of the receiving circuit multiplied by the sum of these resistances. If the input impedance of the signal reception circuit is high, then the transmission errors caused by the aforementioned resistors are small enough to be ignored. To avoid increasing the cost of the signal sender and to allow the mentioned resistors to be ignored, it is necessary for the signal receiving circuit to have a high input impedance. If an operational amplifier OP is used as the input amplifier for the receiver, it must be taken into account that the input impedance of such amplifiers is usually less than

If a dynamic coil meter is used, the resistance of the compensation wire generally does not exceed 15Ω