Introduction to The Name and Specifications of the Power Cord

The complete naming of wires and cables is often complicated, so people sometimes use a simple name (usually a category name) in combination with the model specification instead of the full name, such as "low voltage cable" for all plastic insulated power of 0.6/1kV cable. 

The wire and cable type spectrum is relatively perfect. 

It can be said that as long as the standard model specifications of the wire and cable are written, the specific product can be specified, but what is its complete name?

The naming of wire and cable products has the following principles:

1. Content Included in the Product Name

(1) Product application or size class name.

(2) Product structure materials or types.

(3) Important or additional features of the product.

Basically named in the above order, sometimes in order to emphasize important or additional features, the features are written before or before the corresponding structure description.

2. The Order of Structure Description

The product structure is described from the inside to the outside: conductor -> insulation -> inner sheath -> outer sheath -> armored type.

3. Simplified

In the case of no confusion, some structural descriptions are written or abbreviated. 

For example, aluminum conductors are not allowed in automobile wires and cords, so conductor materials are not described.

Case:

Flame-retardant copper core XLPE insulated steel tape armored PVC sheathed power cable with a rated voltage of 8.7/15kV

"Rated voltage 8.7/15kV" - use occasion / voltage level

"Flame retardant" - the characteristics of emphasis

"Copper core" - conductor material

"Crosslinked Polyethylene Insulation" - Insulation

"Steel belt armor" - armor layer material and type (double steel belt gap wrapping)

"PVC sheath" - inner and outer sheath material (the inner and outer sheath materials are the same, save the inner sheath material)

"Power Cable" - the broad name of the product

The corresponding model is written as ZR-YJV22-8.7/15. The model is written as described below.

4. Pinyin First Letter Capitalized

The uppercase of the first letter of Pinyin indicates the type of insulation, conductor material, inner sheath material and structural features. 

For example, 

Z stands for paper (zhi). 

L stands for aluminum (lv). 

Q stands for lead (qian). 

F stands for phase separation (fen). 

ZR stands for flame retardant (zuran). 

NH stands for fire resistance (naihuo).

5. The Number of Sheaths is Expressed Numerically.

No number represents no armor layer, no outer layer. 

The first digit indicates the armor and the second digit indicates the outer quilt, such as the thick steel armor fiber, which is indicated as 41.

6. Arrangement According to Cable Structure Arrangement.

The cable type is generally arranged according to the arrangement of the cable structure: insulating material; conductor material; inner sheath; outer sheath.

7. Cable Products are Indicated by Model, Rated Voltage, and Specifications. 

The method is to add the rated voltage, the number of cores, and the nominal cross-sectional area after the model number.

List

RV, RVV, RVVP, RVVY, RVVYP, KVVRP, (N) 2YSLC, ZR-RE, ZR-REE, ZR-REEP, PUR, LIYY, LIYCY, LIYY (TP), LIYCY (TP), LI2YCY, PIMF, LIHH, LIHCH.

characteristic

CEF - Ethylene-propylene rubber insulated neoprene sheath, marine flame retardant power cable.

CVV - PVC insulated, PVC sheathed marine flame retardant power cable.

Oxygen cabin wires often use BV, BX, RV, and RVV series wires, of which:

BV - copper core PVC insulated wire, long-term allowable temperature 65 ° C, minimum temperature -15 ° C, working voltage AC 500V, DC 1000V, fixedly laid indoors and outdoors, can be applied or dark.

BX - copper core rubber insulated wire, the maximum operating temperature is 65 ° C, applied indoors.

RV - PVC insulated single-core cord with a maximum operating temperature of 65 ° C, a minimum operating temperature of -15 ° C, an operating voltage of 250 V AC, and a DC of 500 V for internal wiring of instruments and equipment.

RVV - copper core PVC insulated and sheathed flexible wire, allowing long-term operating temperature of 105 ° C, working voltage AC 500V, DC 1000V, for wet, high mechanical protection requirements, often moving and bending occasions.

Common model

VV means: PVC insulation (first V), PVC sheath (second V)

YJV22 means: XLPE insulation (YJ), PVC sheath (V), steel tape armor (22)

Models with "ZR" or "FR" are flame-retardant cables (wires). Add "L" to aluminum wire.

The wire type is simpler:

BVV--PVC insulated and sheathed copper core wire,

BV--PVC insulated copper core wire,

BVR--PVC insulated copper core cord,

BX--rubber insulated copper core wire,

RHF--chloroprene rubber copper core cord.