What detailed specifications are required for purchasing cables?

The procurement process requires six key pieces of information; missing any one may lead to incorrect model identification, specification discrepancies, or inability to proceed with on-site installation. The details are listed below:

I.Basic Models (Cable Categories)

1.Power cables: YJV, YJV22, VV, VV22, YJV32, etc.;

2.Wire harnesses:BV, BVR, BVVB, RVV;

3.Control cables:KVV, KVVP, KVVP22;

4.Photovoltaic cables:PV1-F;

5. Rubber-sheathed flexible cables: YZ, YC, YCW.

No model specifies the insulation material, sheath material, or structure.

II. Voltage Levels   

1.Low-voltage applications: 0.6/1 kV (main power lines), 300/500 V (control lines and household wiring), 450/750 V (BV/BVR household circuits).   

2.Medium-to-high voltage:High-voltage cables such as 8.7/10 kV and 26/35 kV.   

3.Photovoltaic DC systems:DC 1.5 kV (standard configuration for photovoltaics).   

Note: Incorrect voltage selection or improper insulation thickness may render low-voltage cables unsuitable for high-voltage applications.

III. Number of cores + Cross-sectional area per core (key parameter)

Format example: 3×185+1×95,5×16,1×4, 7×2.5

1.First digit: Number of cores (conductors).   

2.After the multiplication sign:Cross-sectional area of a single conductor (mm²)

Power cables: 3-core, 4-core, 3+1-core, 3+2-core, 5-core.   

Control cables:6-core, 10-core, 14-core, 19-core, 24-core, 37-core.   

Photovoltaic Line：Primarily single-core.

IV. Conductor Materials: Copper Core / Aluminum Core   

1. Copper (TC):Suitable for conventional industrial, residential, and municipal projects (standard selection).   

2. Aluminum (AL):Ideal for overhead power lines, long-distance distribution systems, and projects with low cost budgets (YJLV/YJLV223).   

3. Special:Tin-plated copper (for humid/corrosive environments or as control shielded cables).

V. Special Performance Requirements   

1. Flame retardancy classification:

ZA, ZB, ZC (ZCR indicates fire-resistant flame retardancy); no specific requirement applies by default; ordinary non-flame-retardant cables are used.   

2.Fire resistance:

NH-Prefix: NH-YJV Fire-resistant cable (essential for fire protection circuits)

3.Low-smoke, halogen-free:

WDZ-YJY, WDZN-YJY (for subway systems, civil defense facilities, high-rise buildings, and enclosed server rooms)

4.Armoring (steel tape/wire):   

Steel strip armor 22: YJV22, suitable for direct burial and protection against road traffic impact.

Fine-wire armor 32:YJV32, suitable for underwater and deep well installation; without armor = YJV; with armor = YJV22

5.Shielding:

P: KVVP Shielded Control Line for Interference Prevention (used in instrumentation and automation low-voltage systems)

VI. Application Environment & Installation Methods (For Model Selection)

1. Indoor cable tray installation: Standard YJV cable suffices.

2. Direct underground burial: Must use armored Series 22 cables.

3. Outdoor exposure to sunlight:Weather-resistant sheathing with UV protection; cross-linked materials are preferred.

4.Humid environments/sewage/chemical corrosion:Corrosion-resistant sheathing; tin-plated conductors available.

5. High-temperature environments: Special high-temperature resistant cables.

VII. Order Business Parameters

1.Total procurement length (in meters): Full reel or cut pieces; standard cables: 100 meters per reel; large cross-section cables: minimum order quantity of 200 meters.

2.Cable sheath printing requirements:Standard national standard printing; customer-customized logos, company names, or project numbers (commonly used for export).

3.Packaging options:Wooden reels, plastic reels, bare rolls (solid wood reels preferred for export).

4.Delivery terms:Tax included; compliance with national standards; required full length (by meter).