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Complex electrical and information technology systems shape
the image of modern agriculture. These systems are used to
optimise and, if possible, automate time-consuming processes PC
to increase the revenue. controller switch
For dairy animal breeding, this means
¨ That the fully automated milking system / feeding station
identifies the transponder of the cow and controls the milk-
ing process or the food volume;
¨ That fresh milk is analysed for the presence of blood / infec-
tions and is discarded or transferred to the milk receiving
vessel; robotic system
¨ That the milk from the milking system is cooled in the milk
receiving vessel and the waste heat of the compressor is
passed through a heat exchanger to heat the water in an
industrial water boiler (reduced costs by heating industrial
water);
¨ That the cleaning system rinses the milk hoses;
¨ That the vacuum system provides a vacuum to extract milk milk receiving NT modem
from the cow; vessel
¨ That compressed air is produced to actuate the entrance
gates of the robotic milking system, position the feeding Figure 9.6.2 Surge protective devices for bus systems and the
trough / droppings box and supply the forced cow traffic telephone
system;
¨ That electric flycatchers minimise fly populations and thus tion measures be taken if electronic equipment is installed.
disease transmission; Table 9.6.1 shows suitable surge protective devices for the
¨ That ventilators improve the climate in the barn and thus sample building (Figures 9.6.1 and 9.6.2).
animal health / milk quality.
Protective equipotential bonding according to IEC 60364-
Figure 9.6.1 shows an example of an agricultural building 5-54 (HD 60364-5-54) as well as supplementary protective
with robotic milking system. The individual systems are con- equipotential bonding for agricultural and horticultural prem-
trolled via several data lines (Figure 9.6.2). The operator can ises according to IEC 60364-7-705 (HD 60364-7-705) is im-
access the entire building via modem. portant to protect agricultural buildings against surges. These
standards describe how to integrate extraneous conductive
In subsection 705.443 of the IEC 60364-7-705 (HD 60364-7-705) parts in the floor of the standing, lying and milking area (also
standard it is recommended that lightning and surge protec- recommended for slatted floors made of concrete).

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