[tt-trommler]

das ist die Regel :

2.3 Der obere Rand des Netzes muss in seiner ganzen Länge einen Abstand von 15,25 cm zur Spielfläche haben

und im handbook for match officials ist es genau definiert

5.5 It is important for the umpire or assistant umpire to check both the height of the net and the tension of the net-cord. This should be done prior to every match, including team matches within a team competition. It is not really satisfactory just to estimate the tension by touch and several manufacturers have produced weighted net gauges, which ensure consistency. These gauges, which weigh exactly 100g, have two steps, one at 15.25cm and the other 1cm lower. However the weighted gauge should only be used to check the tension – it is not advisable to use it for checking the height. After the height has been checked using a plastic net gauge the lower step of the weighted gauge is rested on the top of the net, in the centre, and the tension adjusted until the bottom of the gauge just touches the playing surface.


o.k. ?