Rope power cord (dynamicrope) and static rope (staticrope) : in power falling possibility of project, must use the power cord, rock climbing, mountaineering, drop, jumping, etc by ropes stretched to absorb energy. Static rope refers to a rope that is malleable to reach 0. Used for probing, high-altitude work, retracing the stream, SRT, etc., it is worth noting that static rope is not used for climbing.

Power rope: singlerope, doublerope, twinrope

Single rope

The diameter is 9.5 mm - 11mm, the tail of the rope has a "1" sign to the cloth, it is difficult to use, but it is not too hard to climb, traditional climbing and technical mountain climbing. Note: the current 9.2 line is clearly marked by the use of a single rope and can be used as a semi-rope, such as a climbing PETZL VOLTA 9.2 mmR35 AO

Half a line

The diameter is 9mm, the rope tail has "1/2" the label pasting, need two simultaneous use. It is suitable for difficult, long distance or winding route. When straight line, two rope can hang in the same protection as route needs to cross or not about timing, two rope into their respective fixed point respectively, parallel disjoint (left rope on the left, right rope hanging on the right). In case of one break, there is another one. Two ropes are fixed on two separate fixed points, equal to two different systems, connected to a pioneer and one (or two) to ensure the person. When climbing vertically, you can reduce the fall distance. On the route, you can reduce the amount of falling; If you buy half a rope, you must choose two of the same labels, same type, same diameter, same length of rope, the only thing that can be different is the color. The use of different label or type of rope will result in a particularly easy loss and increased danger due to differences in elasticity and other characteristics. Climbing rope is technology is recommended I use rope way, it not only can better ensure safe drop again every time can more quickly because 60 meters single rope descent only 30 meters and half line every time to 60 meters, is worth that many climbers also put half a rope used as the main line. Note: a lot of businesses now have a half Line under 9mm like Beal Ice Line 8.1 Golden Dry + Unicore

Double rope

The diameter 8mm - 8.8 mm, is to use the two thin string as a single rope, the two ropes hang in the same fixed point. The guarantee must operate two ropes at the same time. Double rope can absorb more falling power than single rope, bear more fall and light weight, and hang rope is more convenient. Even if one of the ropes was cut off by the rock, there was another one that could hold the climber, but not to keep climbing, to make sure the man lowered him down.

Line:

The waterproof rope is the dry line that we often say, and this kind of string is treated by TEFLON waterproof. The rope is immersed in water

The moisture intensity decreases by over 20%. It is very dangerous to be hardened by freezing hard and hard when it is wetted by snow and water. Practice proves that the dry rope has the following obvious advantages: (1) not only prevent the water from entering the inner core, but also the net will soon dry out. (2) the change in weight after water immersion is very small. (3) the water rarely gets cold hard. (4) longer service life. So choose the dry line as much as possible in climbing and climbing

The rope length

In the case of rice, the current 55 and 60 meters have replaced the past 50 meters. The length of the rope is heavier, but it can be climbed a little longer. Manufacturers usually produce 50, 55, 60, and 70 meters.

The number of times the string is falling

UIAA FALL is a parameter to test the durability of the rope. So-called international DengLian drop is used to test a standard experimental process of mountaineering, UIAA rules will be a 80 kg weight drop of 5.6 m, took the weight of mountaineering length is 2.8 m, stop falling objects by impact small and 2 kn, rope elongation is lower than 8%, the rope can withstand such drop number called UIAA FALL.