Introduction to the choose and buy of nylon rope what are the factors to consider
According to the statistics of domestic explorers, more than 90% of the nylon cord is still far from reaching targets required UIAAFALLS life had been worn skin.
So when choosing the work high above the nylon cord abrasion resistance and the waterproof degree is factors must be considered.
Impact for single rope, standard rules to stop a 80 kg heavy objects fall coefficient is 2 (
Note: the temperature falling coefficient see later)
During the fall of maximum cannot exceed 12000 cattle.
Is to stop the 55 kg coefficient for double rope for 2 fall in no more than 8000 cows.
Nylon cord from the repeated impact and after using, the impact of the nylon rope will increase.
You choose the smaller the impact of the nylon rope, can use longer.
Number of ingot sheath package outside of the cable, it is the visible part of the rope.
It is composed of many strands of monofilament plait, a single round on a spindle, the more for the same diameter, number of ingot sheathed power performance (
The better, the less number of ingot, the more wear-resisting.
So a person better power performance and selection of the single rope 48 pounds (
Or select 32 pounds single rope (for more wear-resisting
Ductility under the pull of 80 kg, single rope should not exceed 8%, double rope should not exceed 10%.
It is the elastic rope can absorb energy fall.
Extension cannot too big, otherwise it will become a bungee cord.
Diameter, the greater the diameter and weight of nylon cord generally have a longer available period, but they are also more heavy not make.
On the weight and rope net ease of use important line, had better choose fine some rope.
Nylon rope's overall performance should be used as weight and dynamic performance of balance consideration.
Suggestion: the size of the measurement is not as accurate as the weight, so the best comparison nylon cord rather than the weight of the size.
Waterproof rope is what we call dry rope, this kind of rope, net generally through TEFLON waterproof processing.
The rope after soaking by water strength will reduce more than 20%.
The snow is soaked in mountaineering china-africa waterproof cable to be frozen hard intensity will drop dramatically, this is very dangerous.
Practice shows that line has the following obvious advantages: (
Not only prevent water from entering the inner core, and after soaking by water outside the net will soon become dry;
Weight change after the water is very small;
After water will seldom be frozen hard;
Longer service life.