With the increasing electrification in my country, electricity is now available in every household. Connecting electricity primarily relies on cable connections. So, what are some common cable types in our daily lives? Why are they named as they are? What principles are they based on? What is their complete nomenclature?
With these questions in mind, let's take a closer look.
What are some common cable types?
1. Copper Core
NA-YJV, NB-YJV, XLPE insulated, PVC sheathed, Class A(B) fire-resistant power cables can be installed indoors, in tunnels, and in ducts where fire resistance is required.
NA-YJV22, NB-YJV22, XLPE insulated, steel tape armored, PVC sheathed, Class A(B) fire-resistant power cables are suitable for underground installation where fire resistance is required, but are not suitable for installation in ducts.
NA-VV, NB-VV, PVC insulated, PVC sheathed, Class A(B) fire-resistant power cables can be installed indoors, in tunnels, and in ducts where fire resistance is required.
NA-VV22, NB-VV22, PVC insulated, steel tape armored, PVC sheathed, Class A(B) fire-resistant power cables are suitable for underground installation where fire resistance is required, but are not suitable for installation in ducts.
WDNA-YJY23, WDNB-YJY23, XLPE insulated, steel tape armored, polyolefin sheathed, Class A(B) halogen-free, low-smoke fire-resistant power cables are suitable for underground installation where both halogen-free, low-smoke, and fire resistance are required, but are not suitable for installation in ducts.
2. Copper Core/Aluminum Core
ZA-YJV, ZA-YJLV, ZB-YJV, ZB-YJLV, ZC-YJV, ZC-YJLV, XLPE insulated, PVC sheathed, Class A(B, C) flame-retardant power cables can be installed indoors, in tunnels, and in ducts where flame retardancy is required.
ZA-YJV22, ZA-YJLV22, ZB-YJV22, ZB-YJLV22, ZC-YJV22, ZC-YJLV22, and Class A (B, C) flame-retardant power cables with cross-linked polyethylene insulation, steel tape armor, and PVC sheath are suitable for underground installation where flame retardancy is required, but are not suitable for installation in pipelines.
ZA-VV, ZA-VLV, ZB-VV, ZB-VLV, ZC-VV, and ZC-VLV, Class A (B, C) flame-retardant power cables with PVC insulation and PVC sheath can be installed indoors, in tunnels, and in pipelines where flame retardancy is required.
ZA-VV22, ZA-VLV22, ZB-VV22, ZB-VLV22, ZC-VV22, and ZC-VLV22 PVC insulated, steel-tape armored, and PVC-sheathed Class A (B, C) flame-retardant power cables are suitable for underground installation where flame retardancy is required, but are not suitable for installation in ducts.
WDZA-YJY, WDZA-YJLY, WDZB-YJY, WDZB-YJLY, WDZC-YJY, and WDZC-YJLY XLPE insulated and polyolefin-sheathed Class A (B, C) flame-retardant power cables can be installed indoors, in tunnels, and in ducts where flame retardancy and halogen-free, low-smoke conditions are required. WDZA-YJY23, WDZA-YJLY23, WDZB-YJY23, WDZB-YJLY23, WDZC-YJY23, WDZC-YJLY23
Class A (B, C) flame-retardant power cables with cross-linked polyethylene insulation, steel tape armor, and polyolefin sheath are suitable for underground installation when flame retardancy, halogen-free, and low-smoke properties are required. They are not suitable for installation in ducts.
VV, VLV, copper (aluminum) core PVC insulated PVC sheathed power cables are laid indoors, in tunnels and pipes or on outdoor brackets and are not subject to pressure and mechanical external forces. VY, VLY, copper (aluminum) core PVC insulated PE sheathed power cables VV22, VLV22, copper (aluminum) core PVC insulated steel tape armored PVC sheathed power cables are laid indoors, in tunnels, cable trenches and directly buried in the soil. The cables can withstand pressure and other external forces. VV23, VLV23, copper (aluminum) core PVC insulated steel tape armored PE sheathed power cables What principles are used to name wire and cable products? 1. Contents included in the product name (1) Product application or size category name (2) Product structural material or type; (3) Product important features or additional features The naming is basically in the above order. Sometimes, in order to emphasize important or additional features, the features are written in the front or before the corresponding structural description. 2. Order of Structural Description
Product structural descriptions follow the principle of inner-to-outer direction: conductor -> insulation -> inner sheath -> outer sheath -> armor type.
3. Simplification
Some structural descriptions may be omitted or abbreviated where possible to avoid confusion. For example, aluminum conductors are not permitted in automotive cables and flexible cords, so the conductor material is not described.
Example:
Rated voltage 8.7/15kV flame-retardant copper core, XLPE insulated, steel tape armored, PVC sheathed power cable
"Rated voltage 8.7/15kV" – Application/voltage level
"Flame retardant" – Emphasized feature
"Copper core" – Conductor material
"XLPE insulation" – Insulation material
"Steel tape armor" – Armor material and type (double steel tape intermittently wrapped)
"PVC sheath" – Inner and outer sheath materials (if inner and outer sheath materials are the same, the inner sheath material is omitted)
"Power cable" – Product category
The full designation of wires and cables is often complex, so a simple name (usually a category name) combined with model specifications is sometimes used instead. For example, "low-voltage cable" refers to all plastic-insulated power cables rated at 0.6/1kV. The product range of wires and cables is relatively comprehensive; in other words, simply listing the standard model specifications of the wires and cables will clearly identify the specific product.
