Two circuit conductors plus protective earth
Twin with earth differs from two-conductor twin flat cable by including a protective conductor. Confirm the earth conductor area independently of the stated circuit-conductor size.
Electronics & ElectricalWiring & Accessories
Twin with Earth Cables
Twin with earth cable combines two circuit conductors and a protective earth conductor for appropriate internal lighting and power installations.
Duara Group coordinates twin with earth cable supply for residential developments, commercial buildings and contractor wiring schedules. In a typical single-phase circuit the two insulated conductors serve live and neutral, while the protective earth provides the fault-protection connection. Conductor functions must follow the circuit design. The documented nominal size range and packaging are given below; the earth conductor size, insulation arrangement and precise construction require supplier confirmation.
Types and configurations
These are general cable construction options for specification discussions. The configuration, materials and performance of the proposed supply must be confirmed in the quotation; this list does not establish available sizes or stock.
Common sheathed construction
Many twin with earth designs enclose insulated circuit conductors and a protective conductor in a shared sheath. PVC construction is common industry practice, but the exact insulation, sheath and earth arrangement of the quoted product must be verified.
Fixed internal wiring
Installation in suitable building routes, conduit or trunking depends on the selected designation, mechanical protection and environmental conditions. It is not automatically an outdoor or underground cable.
Product specifications
Only the nominal size range and roll packaging below are documented product details. Protective-earth dimensions, conductor materials and insulation details must be confirmed for the quoted cable.
| Parameter | What to define |
|---|---|
| Documented nominal sizes | 1.0 mm², 1.5 mm², 2.5 mm², 4.0 mm², 6.0 mm², 10.0 mm² and 16.0 mm². Confirm the associated earth conductor size for the selected product. |
| Documented packaging | 90-metre rolls. |
| Configuration to confirm | Two circuit conductors and a protective earth; request conductor material, stranding, earth area and whether the protective conductor is insulated or bare within the sheath. |
| Insulation and performance to confirm | Request insulation and sheath materials, conductor identification, voltage rating, current-capacity tables, environmental suitability and any required test evidence. |
Packaging and supply formats
- Documented packaging: 90-metre rolls.
- Specify roll count by nominal circuit size and verify protective conductor details.
Origin and sourcing options
Duara Group coordinates cable sourcing, procurement and distribution for Kenya, East Africa and international buyers. We do not manufacture cables. Producer, origin, quantities and delivery arrangements are confirmed for each enquiry.
Documentation and certification
- Request the proposed supplier datasheet and cable identification before approval.
- Specify any inspection, test reports or product certification evidence required for the exact cable; these are confirmed per enquiry.
- Include destination-specific documentation and the project specification in the purchase request.
Standards and qualification
No product certification, voltage rating, current rating, fire rating or temperature limit is claimed here. A qualified project designer must assess the proposed cable and applicable installation requirements.
Buyer requirements for quotation
- Intended application and equipment or circuit details
- Cable schedule, route lengths and quantity per configuration
- Installation environment and any special performance requirements
- Packaging, destination and requested delivery schedule
- Required datasheets, acceptance tests and quotation terms
Cable selection and installation considerations
Checking protective earth requirements
A protective earth is not a neutral conductor and is not intended to carry normal load current. Its adequacy depends on the protective arrangement and fault conditions. Where a selected design has a bare earth, termination identification and sleeving must follow its installation requirements.
Selecting the circuit and route
Give the designer circuit current, protective-device details, route length, grouping and thermal conditions. Cable installed in building insulation or bundled with other circuits can require different capacity corrections from cable in a ventilated route.
Coordinating site procurement
Prepare quantities by nominal circuit-conductor size, earth requirements and roll count. Confirm termination accessories and the exact approved cable before bulk ordering, then send destination and delivery requirements for a commercial quotation.
Specifications
Specifications vary by manufacturer and configuration. Confirm the points below when you enquire and we will quote against them.
Conductor or fibre specification and cable construction
Circuit or network duty and required performance
Installation method and environmental conditions
Route lengths, quantities and packaging
Required documentation and delivery destination
Applications
- Residential lighting and power circuits designed for the selected cable
- Commercial building fit-outs and internal wiring
- Refurbishment projects replacing existing fixed wiring
- Contractor and institutional procurement of building cable schedules
Frequently asked questions
What is the difference between twin with earth and twin flat cable?
Twin with earth includes a protective earth conductor as well as two circuit conductors. Twin flat without earth has only the two conductors and must not be treated as having an integral earth.
Are the earth and circuit conductors always the same size?
No. The protective earth may have a different cross-sectional area. The documented nominal size range does not confirm earth size; request the supplier construction table.
Which sizes and roll length are documented?
The documented nominal sizes are 1.0 mm², 1.5 mm², 2.5 mm², 4.0 mm², 6.0 mm², 10.0 mm² and 16.0 mm², supplied in 90-metre rolls. Confirm the circuit and protective conductor details for the exact quoted cable.
Is twin with earth suitable for outdoor installation?
Do not assume it is. Outdoor exposure, water and mechanical stresses require appropriate cable construction and protection verified against the installation environment.
What information is needed for a twin with earth quotation?
Provide circuit-conductor sizes, earth construction requirements, roll quantities, route conditions, conductor identification and destination. Include the project specification or an approved reference datasheet.
Sourcing and export
Duara Group supplies twin with earth cables to commercial, industrial and institutional buyers across East Africa, including Kenya, alongside internationally sourced procurement.
Availability, origin and documentation are confirmed per inquiry.
Related products
Wiring & Accessories
Wiring Cable & Accessories
Installation cable, conduit, trunking and wiring accessories.
Wiring & Accessories
Switches, Sockets & Wiring Devices
Wall switches, socket outlets, isolators and wiring devices.
Wiring & Accessories
Domestic Electrical Cables
Domestic electrical cables are single-core, PVC-insulated copper wires for residential and commercial lighting and power circuits.
Explore related supply
Ready to source this?
Tell us the specification, quantity and destination and our sourcing team will come back with availability and a quotation.