Vodni stolpec

Zanima me, kaj pomeni informacija pri bundah recimo 5000 mm vodnega stolpca.

Po cenah sodeč večja je ta številka bolje je, a kaj natančno pomeni?

harigast

16. dec 2008 14:55

16. dec 2008 16:09

16. dec 2008 16:14

Sem nasla tole debato na temo "vodni stolpec", ceprav se nanasa na naup sotora, je pa lustna za brat: http://www.motosvet.com/tabla/lofiversion/index.php/t

V zadnjem prispevku pa je napisano tole: 

"Regardless of country, rain resistance is always quoted as a hydrostatic head in millimetres (mm). This indicates the pressure of water needed to penetrate a fabric. Heavy or wind-driven rain has a higher pressure than light rain. Standing on a groundsheet increases the pressure on any water underneath. Fabric with a hydrostatic head of 1000 mm or less is best regarded as shower resistant, with 1500 mm being usually suitable for summer camping. For camping all year round, look for at least 2000 mm; expedition tents intended for extreme conditions are often rated at 3000 mm. Where quoted, groundsheets may be 5000 mm or more."