10 Frost Protection Drinkers Heated 24 V water bowls – how do they work? 24 V systems are primarily used for stables where the electrical wires could be damaged by browsing and where a 230 V system could present a risk to the animals and also to people under certain circumstances. An isolating transformer (e.g. item no 222798) is required to operate one or more 24 V water bowls. The transformer reduces the mains voltage of 230 V AC to max. 24 V AC. The selected transformer should ensure that the power of the transformer is greater than the accumulated power of the connected equipment. Example: 2 x heating cables (3 metres, 30 watts; item no. 223581) + 2 x water bowls H10 (50 watts; item no. 222005) = 160 watts -> 200 watt transformer (item no. 222797) is required The transformer should never be fully utilised by the connected equipment, and the total power should certainly never exceed its limits, as otherwise the required heat output of the heating cables and water bowl heaters cannot be provided. Please also note that selecting a too small cable cross section for the lead from the transformer to the water bowl can result in the loss of a lot of power. Optimal cable length and cross section is important for keeping the water pipes and water bowls safely free from frost. Please refer to the table with the maximum supply line lengths and cross sections for the output to be transmitted. Therefore, place the transformer as close as possible to the equipment (heating cables, water bowl heaters). It must be installed away from the browsing area, protected from water and be mounted away from the spray area of the water bowl. Heated 230 V water bowls – how do they work? If the electric leads are reliably protected from browsing, then 230 V systems can also be used. The advantage of 230 V systems is in the reliable transmission of the required heating power over long distances and relatively small cable cross-sections. When using metal pipelines, the grounding clamps absolutely must be separately earthed and secured. This is for protection if browsing does occur and/or the heating cable insulation or the water bowl supply cable is damaged and this is due to the pipeline. Please note that 130 V electrical installations must be carried out by an electrician.
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