Factory-Direct Supply of Certified Wires and Conductors for Diverse Industrial Applications

Power Cable

ZR-YJV Cable

Power Cable 0.6/1kV with Copper Conductor XLPE insulation and PVC Jacket CU/XLPE/PVC

Conductor: Annealed copper or aluminum, Class 1/2 to GB/T 3956
Insulation: XLPE (YJ), rated 90°C, flame-retardant per GB/T 18380
Sheath: PVC compound (V), black, flame-retardant
Voltage: 0.6/1kV
Number of cores: 2-4 cores per GB/T 12706.1
Package: Export wooden drum & iron wooden drum or as customer require
Standard: GB/T 12706.1, IEC 60502-1

Product Overview

ZR-YJV Cable is a flame-retardant 0.6/1kV power cable with XLPE insulation and PVC sheath, manufactured per China's national standard GB/T 12706.1. The designation follows Chinese cable naming convention: ZR = flame retardant, YJ = XLPE insulation, V = PVC sheath. It is available in both copper (Cu) and aluminum (Al) conductor variants, making it the dominant power cable type in China's domestic construction and industrial markets as well as Belt & Road export projects.

Flame Retardant Classification

ZR-YJV is tested per GB/T 18380 (equivalent to IEC 60332) for flame propagation. The ZR designation can be further specified to tighter sub-classes:

Designation	Flame Retardant Class	Test Standard	Typical Application
ZR-YJV (ZR)	General flame retardant — Grade C	GB/T 18380.33 / IEC 60332-3-23	Standard commercial buildings, indoor cable trays
ZB-YJV (ZB)	Enhanced flame retardant — Grade B	GB/T 18380.34 / IEC 60332-3-22	High-occupancy buildings, hospitals, data centers
ZA-YJV (ZA)	Highest flame retardant — Grade A	GB/T 18380.35 / IEC 60332-3-21	Critical infrastructure, subways, tunnels, nuclear plants

Copper vs Aluminum Conductor

ZR-YJV is widely available in both conductor materials. The choice depends on project budget, weight constraints, and termination requirements:

Property	Copper (Cu)	Aluminum (Al)
Conductivity (IACS)	100%	~61%
Weight (same ampacity)	Reference	~50% lighter
Cost (same ampacity)	Higher	~40-60% lower
Corrosion Resistance	Excellent — self-passivating	Good — requires proper termination with anti-oxidation compound
Termination	Standard copper lugs	Requires bi-metallic Cu/Al lugs
Typical Market	Critical circuits, short runs, marine	Bulk distribution, long runs, cost-driven projects

Regional Naming Equivalents

ZR-YJV is the Chinese GB/T designation. The same physical construction is known by different names globally. All have XLPE insulation + PVC sheath, flame-retardant:

Region	Designation	Key Standard
China	ZR-YJV / ZB-YJV / ZA-YJV	GB/T 12706.1
Germany / DIN-VDE	N2XY	DIN VDE 0276-603
France / NFC	CV TFR-CV	NF C 32-321
International / IEC	IEC 60502-1 FR-XLPE/PVC	IEC 60502-1 + IEC 60332-3
UK	BS 5467 FR XLPE/PVC	BS 5467 + BS EN 60332-3

Cable Construction

Conductor (Cu or Al)

Annealed copper or aluminum, Class 1 (solid) or Class 2 (stranded) per GB/T 3956. Aluminum with anti-oxidation treatment.

XLPE Insulation (YJ)

Cross-linked polyethylene, 90°C continuous, 250°C short-circuit. Flame-retardant grade per GB/T 18380.

Core Assembly

Laid-up cores with non-hygroscopic PP filler. PVC inner covering or binding tape for circular cross-section.

PVC Sheath (V)

PVC compound, black (standard). Flame-retardant, oil-resistant. Other colors available: red, yellow, blue, green per GB/T 6995.

Technical Characteristics

Rated Voltage	0.6/1kV (U₀/U)
Max. Conductor Temperature	90°C (continuous), 250°C (short-circuit, max 5s)
Min. Installation Temperature	0°C (without pre-heating)
Min. Bending Radius	20 × D (single-core), 15 × D (multi-core)
Flame Retardant Class	ZR (Grade C), ZB (Grade B), ZA (Grade A) per GB/T 18380
Conductor Standard	GB/T 3956 (equivalent to IEC 60228)
Sheath Color	Black (standard); red, yellow, blue, green per GB/T 6995

Applicable Standards & Certifications

ZR-YJV cables are manufactured to GB/T 12706.1 and can also be certified to international equivalents for export projects.

Standard	Scope
GB/T 12706.1	Chinese national standard — power cables with extruded insulation for rated voltages 1kV to 35kV. The primary standard governing ZR-YJV.
GB/T 18380 / IEC 60332-3	Flame retardant classification — defines Grades A, B, C for bundled cable flame tests.
GB/T 3956 / IEC 60228	Conductor specification — copper and aluminum, Class 1 (solid) and Class 2 (stranded).
IEC 60502-1	International standard for power cables 1kV-30kV. ZR-YJV meets IEC 60502-1 with additional flame retardant requirements.
DIN VDE 0276-603	German equivalent standard (N2XY). For projects in Germany and Central Europe.
BS 5467	British standard for XLPE insulated unarmored cables. For projects in UK and Commonwealth markets.
AS/NZS 5000.1	Australia/New Zealand standard. Qiangli can manufacture to this standard on request.
GB/T 6995	Sheath and core identification color marking for Chinese-standard cables.

Belt & Road projects: ZR-YJV manufactured to GB/T 12706.1 is accepted in over 50 countries under bilateral recognition agreements. For projects requiring IEC 60502-1 certification specifically, inform us at order placement and we will provide IEC-certified test reports alongside your GB/T certificates at no additional cost.

Core Identification (per GB/T 6995)

Number of Cores	Standard Core Colors (GB/T 6995)	Alternative Scheme
1-core	Black or Brown	—
2-core	Red, Blue	Blue, Brown
3-core	Red, Yellow, Blue	Brown, Black, Grey
4-core	Red, Yellow, Blue, Green	Blue, Brown, Black, Grey
5-core	Red, Yellow, Blue, Green + Yellow/Green	Blue, Brown, Black, Grey + Yellow/Green

Technical Specifications

All values per GB/T 12706.1. Cu = copper conductor; Al = aluminum conductor. Sections marked "*" use solid (Class 1) conductor per GB/T 3956. For aluminum conductor cables, add "YJLV" to the order designation. Flame retardant class defaults to ZR (Grade C) unless ZB or ZA is specified.

2-Core ZR-YJV Cable

Cross Section (mm²)	Conductor Dia. (mm)	Insulation (mm)	Sheath (mm)	Overall Dia. (mm)	Weight Cu (kg/km)	Weight Al (kg/km)
2 × 1.5	1.38	0.7	1.8	9.8	111	—
2 × 2.5	1.78	0.7	1.8	10.6	136	106
2 × 4	2.25	0.7	1.8	11.5	182	134
2 × 6	2.76	0.7	1.8	12.5	227	—
*2 × 6	2.83	0.7	1.8	12.7	—	159
2 × 10	4.05	0.7	1.8	15.1	338	216
2 × 16	5.10	0.7	1.8	17.2	480	285
2 × 25	5.90	0.9	1.8	19.6	664	360
2 × 35	6.90	0.9	1.8	21.6	869	445
2 × 50	9.37	1.0	1.8	19.4	1,037	464
2 × 70	11.20	1.1	1.8	22.1	1,456	621
2 × 95	13.23	1.1	1.9	24.8	1,959	806
2 × 120	14.92	1.2	2.0	27.2	2,451	994
2 × 150	16.44	1.4	2.2	30.7	3,047	1,259
2 × 185	18.49	1.6	2.3	33.7	3,789	1,549
2 × 240	21.40	1.7	2.5	38.9	4,941	1,974
2 × 300	24.10	1.8	2.6	42.7	6,125	2,417
2 × 400	27.20	2.0	2.9	48.1	7,837	3,071
2 × 500	31.00	2.2	3.1	53.6	10,010	3,882

3-Core ZR-YJV Cable

Cross Section (mm²)	Conductor Dia. (mm)	Insulation (mm)	Sheath (mm)	Overall Dia. (mm)	Weight Cu (kg/km)	Weight Al (kg/km)
3 × 1.5	1.38	0.7	1.8	10.2	130	—
3 × 2.5	1.78	0.7	1.8	11.1	168	124
3 × 4	2.25	0.7	1.8	12.1	224	151
3 × 6	2.76	0.7	1.8	13.2	290	—
*3 × 6	2.83	0.7	1.8	13.3	—	189
3 × 10	4.05	0.7	1.8	16.0	440	257
3 × 16	5.10	0.7	1.8	18.2	633	341
3 × 25	5.90	0.9	1.8	20.8	912	456
3 × 35	6.90	0.9	1.8	23.0	1,207	571
3 × 50	9.34	1.0	1.8	25.4	1,532	672
3 × 70	11.22	1.1	1.9	28.8	2,166	913
3 × 95	13.16	1.1	2.0	32.4	2,917	1,188
3 × 120	14.76	1.2	2.1	35.3	3,648	1,462
3 × 150	16.34	1.4	2.3	38.7	4,505	1,823
3 × 185	18.30	1.6	2.4	42.4	5,606	2,245
3 × 240	20.92	1.7	2.6	47.2	7,237	2,826
3 × 300	23.38	1.8	2.7	51.5	8,986	3,472
3 × 400	26.46	2.0	3.0	57.5	11,594	4,444
3 × 500	30.00	2.2	3.2	64.3	14,809	5,617

3+1 Core ZR-YJV Cable

Three phase conductors + one reduced neutral. Phase and earth columns list conductor diameters and insulation thicknesses respectively. Weight is total cable weight.

Cross Section (mm²)	Conductor Dia. Phase/Earth (mm)	Insulation Phase/Earth (mm)	Sheath (mm)	Overall Dia. (mm)	Weight Cu (kg/km)	Weight Al (kg/km)
3 × 2.5 + 1 × 1.5	1.78/1.38	0.7/0.7	1.8	11.7	190	—
3 × 4 + 1 × 2.5	2.25/1.78	0.7/0.7	1.8	12.7	257	169
3 × 6 + 1 × 4	2.76/2.25	0.7/0.7	1.8	14.0	339	—
3 × 6 + 1 × 4	2.83/2.25	0.7/0.7	1.8	14.1	—	213
3 × 10 + 1 × 6	4.05/2.76	0.7/0.7	1.8	16.6	506	—
3 × 10 + 1 × 6	4.05/2.83	0.7/0.7	1.8	16.7	—	289
3 × 16 + 1 × 10	5.10/4.05	0.7/0.7	1.8	19.3	743	390
3 × 25 + 1 × 16	5.90/5.10	0.9/0.7	1.8	22.1	1,085	532
3 × 35 + *1 × 16	6.90/5.10	0.9/0.7	1.8	23.9	1,374	641
3 × 50 + 1 × 25	9.10/5.90	1.0/0.9	1.8	25.4	1,787	775
3 × 70 + 1 × 35	10.94/6.90	1.1/0.9	1.8	29.4	2,506	1,042
3 × 95 + 1 × 50	12.91/9.00	1.1/1.0	1.8	32.8	3,360	1,345
3 × 120 + 1 × 70	14.51/10.83	1.2/1.1	1.9	36.0	4,293	1,688
3 × 150 + *1 × 70	16.11/10.83	1.4/1.1	2.1	39.4	5,122	2,023
3 × 185 + 1 × 95	18.04/12.17	1.6/1.1	2.2	43.3	6,453	2,516
3 × 240 + 1 × 120	20.65/14.39	1.7/1.2	2.3	48.4	8,332	3,192
3 × 300 + 1 × 150	23.08/15.93	1.8/1.4	2.5	53.3	10,335	3,927
3 × 400 + 1 × 185	25.49/17.77	2.0/1.6	2.7	59.4	13,251	4,982

4-Core ZR-YJV Cable

Cross Section (mm²)	Conductor Dia. (mm)	Insulation (mm)	Sheath (mm)	Overall Dia. (mm)	Weight Cu (kg/km)	Weight Al (kg/km)
4 × 1.5	1.40	0.7	1.8	10.9	157	—
4 × 2.5	1.80	0.7	1.8	11.9	202	143
4 × 4	2.30	0.7	1.8	13.0	270	173
4 × 6	2.80	0.7	1.8	14.3	361	—
*4 × 6	2.80	0.7	1.8	14.4	—	225
4 × 10	4.10	0.7	1.8	17.4	552	308
4 × 16	5.10	0.7	1.8	19.9	802	414
4 × 25	5.90	0.9	1.8	22.8	1,157	549
4 × 35	6.90	0.9	1.8	25.3	1,541	693
4 × 50	9.10	1.0	1.8	25.5	1,973	827
4 × 70	11.00	1.1	2.0	29.6	2,823	1,153
4 × 95	12.90	1.1	2.1	33.4	3,812	1,507
4 × 120	14.50	1.2	2.3	37.0	4,797	1,881
4 × 150	16.10	1.4	2.4	41.1	5,920	2,344
4 × 185	18.00	1.6	2.6	45.5	7,400	2,920
4 × 240	20.60	1.7	2.8	51.3	9,611	3,730
4 × 300	23.00	1.8	3.0	56.4	11,927	4,575
4 × 400	26.10	2.0	3.3	63.2	15,377	5,845
4 × 500	29.50	2.2	3.5	73.8	19,711	7,455

Ordering notes: ZR-YJV = flame retardant copper conductor cable. ZR-YJLV = flame retardant aluminum conductor cable. For enhanced flame retardant grades, specify ZB-YJV (Grade B) or ZA-YJV (Grade A). Sections marked "*" in tables indicate solid (Class 1) conductor per GB/T 3956. All other sections use Class 2 stranded conductor.

Packaging & Delivery

🪵

Export Wooden Drum

Fumigated solid wood or plywood drums. Standard for international sea freight and container loading.

🔩

Iron-Wooden Drum

Reinforced composite drums for heavy cables (120 mm²+). Superior protection during transport.

📦

Custom Packaging

Plywood reels, customer-specified drum types, custom marking, and private-label packaging on request.

Customization Options

Full OEM/ODM: copper or aluminum conductor, custom core colors (GB/T 6995 or HD 308), custom sheath colors, sequential meter marking, private-label packaging. Contact sales for MOQ.

Typical Applications

ZR-YJV is the workhorse XLPE power cable in China and is widely exported to Belt & Road and developing markets:

🏗️

Construction & Infrastructure

Main electrical distribution in residential towers, commercial complexes, metro stations, and airport terminals.

🏭

Industrial Parks

Factory power supply and inter-building distribution in manufacturing zones. Aluminum variant popular for cost-sensitive long runs.

⚡

Utility Distribution

Secondary distribution networks. Copper for critical feeders, aluminum for bulk distribution lines.

🏢

Government & Public Buildings

Schools, hospitals, and government facilities. ZB-YJV (Grade B) specified where enhanced fire safety is required.

🚇

Transportation Infrastructure

Railway stations, subway systems, and tunnels where ZA-YJV (Grade A) flame retardant cables are mandated.

🌍

Belt & Road Export Projects

Infrastructure projects in Africa, Southeast Asia, and South America accepting GB/T 12706.1 with IEC 60502-1 equivalency.

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Frequently Asked Questions

1. What is your minimum order quantity (MOQ)?

As a factory, we offer flexible MOQ depending on the cable type. For standard stock items, MOQ is low; for customized specifications, please contact our sales team for a detailed quote.

2. Do your cables meet international certification standards?

Yes, Qiangli cables are manufactured in compliance with international standards such as UL, CE, TUV, and VDE. We provide full test reports and certificates upon request.

3. Can you provide customized cable solutions (OEM/ODM)?

Absolutely. We have a dedicated R&D team that can customize cable structure, material, color, and printing to meet your specific project needs.

4. What is the typical lead time for an order?

For standard products, lead time is usually 7-15 days. For large-scale project orders or customized products, it typically ranges from 20 to 30 days.

5. Do you offer free samples for quality testing?

Yes, we provide free samples for most standard cables. You only need to cover the international courier costs. Contact us to arrange your sample shipment.