The distinction between Z and S of stranded wire in wire industry

What does each letter in the wire and cable model stand for?

To be more specific, it is as follows:

For the convenience of production and use, all kinds of wires and cables are represented by some English letters and numbers, but it is impossible for people who are not in contact with this field to understand these "technical terms". Next, Nankai Branch of Tianjin Tianlang Cat Group will explain the meaning of these confusing letters to you. Knowing this, you will have a certain understanding of the cable industry!

Meaning of letters and numbers in 1. model:

NH—— passed the fire resistance test of GB 12666.6;

ZR—— passed the tube bundle combustion test in GB 12666.5;

B—— low halogen (latest model);

C—— Halogen-free and low smoke (latest model);

YJ crosslinked polyethylene insulating material;

V- low halogen flame retardant PVC sheath or lining;

Halogen-free flame retardant thermoplastic polyolefin sheath or lining;

22—— Steel belt armored low-halogen flame-retardant PVC outer sheath;

24—— Steel belt armored halogen-free flame retardant thermoplastic polyolefin outer sheath.

2. See table for model combination structure and cable name.

Model name

NH/ZR-YJV-B XLPE insulated low-halogen flame-retardant fire-resistant power cable

NH/ZR-YJV22-B XLPE Insulated Low Halogen Flame Retardant Steel Armored Power Cable

NH-ZR-YJS-C XLPE insulated halogen-free low-smoke flame retardant thermoplastic polyolefin lined (or sheathed) fire-resistant power cable.

NH-ZR-YJS24-C XLPE insulated halogen-free low-smoke flame retardant thermoplastic polyolefin lined (or sheathed) fire-resistant power cable.

Control cable with rated voltage of 450/750V and below

Code meaning

K- control cable

V- PVC

V- PVC

P- copper wire braided shield

R- soft conductor structure

Y type polyethylene

P2 copper tape shield

Zirconium flame retardant cable

YJ crosslinked polyethylene

Y type polyethylene

22- Steel Strip Armoring

NH- fire-resistant cable

control cable

KVV22 PVC insulated PVC sheathed steel belt armored control cable.

KYJVP-ZR XLPE insulated PVC sheathed copper wire braided shielding flame retardant control cable.

KYJVP2-NH XLPE insulated PVC sheathed copper tape shielded fire-resistant control cable.

Main uses and characteristics of use

Suitable for control, monitoring and protection circuits with rated voltage of 450/750V and below.

The long-term allowable working temperature of XLPE insulated control cable shall not exceed 90℃, the long-term allowable working temperature of PVC insulated and PE insulated control cable shall not exceed 70℃, and the installation environment shall not be lower than 0℃.

The bending radius of copper tape shielded or steel tape armored cables shall not be less than 12 times of the cable outer diameter, and the bending radius of other types of cables shall not be less than 6 times of the cable outer diameter.

Symbolic significance in various types of power cables

T: copper (generally omitted, not included in the model)

aluminium (Al)

V: PVC insulation or sheath

YJ: XLPE insulation

22: Steel Strip Armoring

32: Fine steel wire armoring

42: Thick steel wire armor

More specifically, as follows:

The meaning of pinyin letters in the product model (words without brackets)

Answer: (poly) amine (grease), safety (installation), aluminum-plastic sheath (Alpeth)

B: Flat, semi-woven, pump, cloth, (poly) benzene (ethylene), glass (glass fiber), supplementary and parallel.

C: car, wine, mine (excavator), porcelain, heavy (type), ship, electricity storage (pool), magnetization, compensation, (yellow wax) wire, (3) vinegar (acid film) and self-support.

D: adhesive tape, (no) drip (flow), lamp, electricity, (cold) freezing (that is, cold resistance), butyl (primer), electroplating.

E: two (layers), field (outside), symmetrical structure (code name) and ethylene-propylene rubber (EPR).

Fluorine: (polytetrafluoroethylene), divided (phase), nonflammable (aircraft), foamed polyethylene (YF)

G: steel, trench, paint, pipe and high pressure.

H: alloy (gold), ring (epoxy paint), welding, flower and communication cable (using code), H(H-type, namely split-phase shielding structure), and cold.

J: Twist, add (strength), add (thickness), saw and use.

Krishnamurti: (true) gas, pron, control, A, hollow.

L: aluminum, furnace, wax (g), leaching (green), lightning protection and phosphorus.

M: cotton (yarn), hemp, thread, hat and film.

N: (self) viscosity (property), mud (carbon), (high resistance) nylon (core), nylon (dragon), fire resistance.

O: coaxial (structure code)

P: row, (core) screen (shielding), power distribution (wiring), defective (immersion, i.e. dry insulation), signal cable (using code)

Q: Traction (traction), paint, lead, light (type), gas, steam (vehicle), high (strength polyvinyl acetal).

R: Soft, artificial silk, for daily use (use code), (heat resistance) (chemical resistance).

S: Brush, wire, radio frequency (using code), double steel-plastic sheath (Stalpeth), low-smoke halogen-free flame retardant sheath.

T: Copper, ladders, special products, communication, ceramics, elevators and probes.

U: minerals, cotton (asbestos) and minerals (use code)

polyvinyl chloride

W: (ground) material (principle), corrugated sheath, no (magnetism), (high temperature resistance), (outdoor), petroleum (use code)

X: rubber (cable), polyamide, rubber (skin insulation)

Y: hard, round, oil, oxygen, (oil resistance), mobile (use code), polyethylene, pressure.

Z: (polyester), paper, (electric) drill, medium-sized, heald (synthetic)

YJ: XLPE insulation

P2: copper strip shield

ZRK: serial number, indicating the flame retardant control cable.