What is called a lay length 10 when the cable is stranded

Cable core stranded pitch.

Different pairs have different lay lengths. Generally speaking, the 4 pairs of twisted pairs are twisted in a counterclockwise direction within the length of the 4 pairs, and the twist length of a pair is within the length.

Summary. How to calculate the lay-length of the wireThe calculation formula for the lay-up length of the copper wire is: k=1+ where m is the pitch and k is the skewing coefficient.

The calculation formula for the lay distance of the wire is: k = 1 + where m is the pitch respect, and k is the difference coefficient of the twisted brightness.

Generally speaking, the wire stranding distance is 15 30 times the outer diameter of the stranded for reasonable, and there are also standards that require the ridge to be attacked by multiples of the maximum single wire, if there is a standard that clearly requires, please press the standard. Stranded outer diameter = root number (number of wires) * single wire diameter *

Summary. Hello, friend, very happy for you, the formula for calculating the thread length is: k=1+ where m is the pitch and k is the twisting coefficient.

Hello, friend, very happy for you, the formula for calculating the thread length is: k=1+ where m is the pitch and k is the twisting coefficient.

The straight-line distance of a single copper wire or a single core around a circle divided by the outer diameter of the stranded wire or cable is the pitch ratio of the wire, which is customarily called the pitch, and there are also places called the lay.

First, the calculation method is different.

Set: The starting set is calculated as the distance traveled by a single wire along the axis of the stranded wire.

Pitch: Pitch is the center distance of the bus on the same side of two adjacent rollers.

2. Influencing factors.

Lay length: The influencing factors of the lay length are mainly the spiral rising angle of the strand, the outer diameter of the strand, the outer diameter of the pitch circle, etc.

Pitch: The influencing factors of pitch are mainly power, the speed of the small sprocket and the chain pitch.

Stranded cable means that the cable has multiple insulated cores (two or more) stranded together.

1. The cable is usually a rope-like cable formed by twisting several or several groups of wires (at least two in each group), each group of wires is insulated from each other, and often twisted around a center, and the whole outer bread has a highly insulating covering layer. The cable has the characteristics of internal energizing and external insulation.

2. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wire and insulation, which are used to connect electrical circuits, electrical appliances, etc.

Two or more cores are individually twisted together to form a group. There may be several such groups inside a cable, and such cables are called stranded cables.

That is, the cable has multiple insulated cores (two or more) stranded together. But there is no such thing as that.

CEFR7* should refer to: 7 square lines together.

If it is a multi-wire wire, it will generally be expressed as: 4*2* means, 4 groups of 2 square wires twisted wire.

The distance between the two wires and the twisted node.

The strand length of the wire and cable refers to the distance of the wire into a cable twist, that is, the distance between the first stranding point and the second stranding point.

Lay, also known as pitch, is the axial length of a single wire that rotates around the core of the cable.

Core set. The average of the 10 stranded spacing of the coring wire is taken as the average strand length of the core, and any core wire is measured by removing the insulating sheath of about 10 stranded lengths. Be careful not to damage the core wire when peeling, which will cause the core wire to break.

Wire skew. The same 10 strand length of the wire is averaged, as the average strand length of the bright chain, and it should be noted that the internal stress and torsion of the wire when the wire is stranded are very large, which may cause the looseness of the original stranding structure when removing the outer strand. For this reason, when sampling, first reserve a section of sheath wire to remove the outer quilt, and then pull off part of the outer quilt with a sharp blade along the direction of the cable, it is best to be able to see the wire to be measured, and the wire and the outer quilt are still very close together.

The sample is straightened horizontally, and the distance between the ten stranding points of a certain wire is measured as the setting distance, because due to the stress relationship during the formation of the cable, the stranding distance of the forming outer quilt will be increased.