Yellow/Green Single Core Earth Cable (BV / BYJ / BVR / WDZ-BV)
Earth / Ground Cable
Green/yellow single-core copper protective conductor for earthing, bonding and equipment grounding
Earth cable, also called ground cable, is a single-core copper conductor with green/yellow insulation used as the protective conductor in an installation: from the main earthing terminal to the electrode, for bonding metalwork and pipes, and as the earth lead to equipment. We make it with solid, stranded or flexible copper and PVC, XLPE or LSZH insulation.
What is Earth / Ground Cable?
An earth cable does not carry load current in normal service. Its job is to give fault current a low-resistance path back to earth so that the protective device trips, and to hold exposed metalwork at earth potential. The green/yellow insulation is what marks it as the protective conductor, so it should never be used as a live or neutral wire.
Our factory table lists the earth cable in the same single-core constructions as house wire: BV (copper, PVC), BYJ (copper, XLPE), BVR (flexible copper, PVC), ZR-BV (fire retardant PVC), WDZ-BV (low smoke zero halogen) and NH-BV (mica tape, fire resistant). The conductor can be annealed or tinned copper: BV is a single solid wire up to 6 mm² and stranded above that; BVR uses more, thinner strands for earth leads with tight routing. Solid or stranded BV suits fixed earthing runs. If your standard names a conductor class (for example IEC 60228 Class 5), we confirm the strand construction before quoting.
Green/yellow BV and BVR are covered by our CCC certificate 2002010105016709 within its listed ranges (BV 450/750 V 1.5–240 mm², BVR 450/750 V 2.5–70 mm²). The other models on this page are not on a CCC or CB certificate we hold.
This page is only about the green/yellow protective conductor. For single-core wire in circuit colours, see Building Wire. For fine-stranded circuit wiring, see Flexible Electrical Wire. For the earth core built into a flat 2+1 cable, see Twin & Earth Cable.
Key features
- Rated voltage 450/750 V or 0.6/1 kV (300/500 V also listed)
- Annealed or tinned copper: solid or stranded BV, multi-strand BVR; conductor class per your standard
- Insulation: PVC standard; XLPE or LSZH optional
- Green/yellow insulation for protective conductors
- Single core, 0.5–400 mm²
- Same constructions available in red, blue, yellow, black, white and green for house wiring
Typical applications
- Main earthing conductor from the main earthing terminal to the earth electrode
- Protective bonding of metal pipes, cable trays and structural steel
- Earth leads to motors, pumps, panels and switchgear frames
- Flexible BVR earth jumpers for panels and equipment with tight routing
- Low smoke WDZ-BV and fire resistant NH-BV for buildings with fire performance requirements
Earth / Ground Cable Models — Yellow/Green Single Core
Source: Huanghe factory product data
Voltage: 450/750 V, 0.6/1 kV. All models single core.
Custom sizes available on request — send us your project specification.
| Model | Structure | Description | Nominal cross-section |
|---|---|---|---|
| BV | Cu / PVC | Copper core, PVC insulated | 0.5, 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400 mm² |
| BYJ | Cu / XLPE | Copper core, XLPE insulated | 0.5, 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400 mm² |
| BVR | Cu / PVC | Stranded (multi-strand) copper core, PVC insulated | 0.5, 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400 mm² |
| ZR-BV | Cu / FR-PVC | Copper core, fire retardant PVC insulated | 0.5, 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400 mm² |
| WDZ-BV | Cu / LSZH | Copper core, low smoke zero halogen insulated | 0.5, 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400 mm² |
| NH-BV | Cu / mica / PVC | Copper core, mica tape, fire resistant | 0.5, 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, 400 mm² |
Verified Factory Documents — Earth Cable
Source: China Compulsory Certification (CCC) certificates issued by CQC to Henan Huanghe Wire & Cable Co., Ltd.
The certificate lists models, voltages and sizes, not colours; green/yellow BV and BVR are covered inside these ranges. BYJ, ZR-BV, WDZ-BV and NH-BV are not listed.
| Document | Validity | Standard on the certificate | Scope written on the certificate |
|---|---|---|---|
| CCC 2002010105016709 | valid 21 Apr 2023 – 20 Apr 2028 | GB/T 5023.3-2008 / IEC 60227-3:1997; JB/T 8734.2-2016 | 60227 IEC 01 (BV) 450/750 V 1.5–240 mm²; 60227 IEC 05 (BV) 300/500 V 0.5–1 mm²; BVR 450/750 V 2.5–70 mm² |
Earth Cable Material Ratings
Source: Huanghe factory product data
| Item | Value |
|---|---|
| PVC — max. service temperature | 70 °C |
| PVC — max. short-circuit temperature | 160 °C (max. 5 s) |
| XLPE — max. service temperature | 90 °C |
| XLPE — max. short-circuit temperature | 250 °C (max. 5 s) |
| Min. installation temperature | 0 °C |
| Min. service temperature | -40 °C (fixed and protected installations) |
Sizing the earth conductor for your project?
The protective conductor size is set by your installation standard and the fault level, so we do not pick it for you. Send the sizes, conductor class, insulation and standard from your drawings, and we return a datasheet with diameters and weights for that build.
What to send us for an earth cable quote
- Model: BV, BYJ, BVR, ZR-BV, WDZ-BV or NH-BV
- Cross-section per line item and quantity
- Conductor: solid or stranded BV, or multi-strand BVR; plain or tinned copper; any conductor class your standard names
- Insulation: PVC, XLPE or LSZH
- Confirm green/yellow, or other colours if also ordering house wire
- The standard named in your specification
- Coil or drum length and destination port
Earth / Ground Cable gallery
Factory & delivery capability
Real photos from our production facility — from raw material to container loading.
Production Line
Quality Testing
Warehouse & Stock
Drum Packaging
Container Loading
Ready to Ship
Frequently asked questions about Earth / Ground Cable
Q.Why is earth cable green and yellow?
Green/yellow insulation identifies the protective (earth) conductor, so it is not confused with live or neutral conductors. Do not use green/yellow wire for anything other than earthing and bonding.
Q.Is earth cable the same as BV wire?
It is built the same way. Our earth cable is made as BV, BYJ, BVR and other single-core types; what makes it an earth cable is the green/yellow insulation and its use as the protective conductor.
Q.Should I choose solid or flexible earth cable?
Solid or stranded BV suits fixed earthing and bonding runs. BVR, with more and thinner strands, is easier to route and terminate for earth leads to panels and equipment. Our standard BVR is not an IEC 60228 Class 5 conductor; if your standard requires Class 5, state it and we confirm the construction.
Q.Is green/yellow earth cable CCC certified?
Green/yellow BV and BVR are covered within the ranges on CCC certificate 2002010105016709 (valid to 20 Apr 2028): BV 450/750 V 1.5–240 mm², BV 300/500 V 0.5–1 mm² and BVR 450/750 V 2.5–70 mm². BYJ, ZR-BV, WDZ-BV and NH-BV are not on it.
Q.What size of earth cable do I need?
It is set by your installation standard and the fault current of the circuit. We make 0.5 to 400 mm²; your designer should give the size, and we build to it.
Q.Do you make halogen-free earth cable?
Yes. WDZ-BV has low smoke zero halogen insulation. ZR-BV is fire retardant PVC and NH-BV adds a mica tape for fire resistance.
Q.Is tinned copper earth cable available?
Yes. The conductor can be annealed plain copper or tinned copper.
Related products and how they differ
Building Wire (BV / BYJ)
The same single-core constructions in circuit colours for live and neutral conductors in conduit.
View specifications →Flexible Electrical Wire (BVR)
Multi-strand circuit wiring for panels and equipment. Earth cable is the protective conductor only.
View specifications →Twin & Earth Cable
Flat 2+1 cable with the earth conductor built in, for fixed room wiring.
View specifications →Related Technical Guides
Learn more about Earth / Ground Cable specifications, installation, and sourcing.
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Read guide →Ready to source Earth / Ground Cable from the factory?
Send your specs — model / size / conductor class / insulation / colours / coil length / destination port. Quote within 24 hours.
Checking compliance before you enquire? Factory ISO 9001 and CCC certificates and test reports. Product standards and certificates are confirmed per model, market and order.