Three layers, not one list
A buyer who writes "cable to international standard" on an RFQ has given the plant almost nothing to work with. Cable compliance sits in three layers, and each one answers a different question.
- Product standards describe the construction: conductor class, insulation and sheath material and thickness, voltage rating, marking and the routine tests every drum must pass. IEC 60502-1, BS 6724, UL 83 and EN 50618 are product standards.
- Test standards describe a method, not a cable. IEC 60228 sets conductor resistance limits; IEC 60332-1-2 and IEC 60332-3 are flame tests; IEC 60331 is a circuit integrity test; IEC 61034 and IEC 60754-1/-2 measure smoke and acid gas. A product standard calls them up, or a project specification adds them.
- Market rules decide whether the product can be sold or installed in a country: the EU Construction Products Regulation with EN 50575, the Thai TIS 11 mandatory parts, SONCAP in Nigeria, PVoC in Kenya, NRCS in South Africa, SABER in Saudi Arabia and CCC in China. In the US the deciding party is usually the authority having jurisdiction (AHJ), which normally expects listed products.
The order matters. Pick the market first, then the product standard that market accepts, then the extra tests the project asks for. The cable standards guide covers the same logic family by family.
Product standards by cable family
The same physical cable often exists in several standard families with small but real differences in thickness, colour code and marking. The table shows the usual reference for each family; it is a map, not a substitution list, and a cable made to one column is not automatically compliant with another.
| Family | IEC / EN | UK | US | Other examples |
|---|---|---|---|---|
| Building wire, single core | IEC 60227 (60227 IEC 01), H07V-U / H07V-R / H07V-K | BS 6004 family | UL 83 (THHN/THWN-2), UL 44 (XHHW-2) | TIS 11 Part 3 (Thailand) |
| Flat twin and earth | - | BS 6004 (6242Y), BS 7211 (6242B) | - | - |
| Flexible cords | IEC 60227 (60227 IEC 53), IEC 60245 for rubber | - | - | TIS 11 Part 5 |
| LV power cable | IEC 60502-1 | BS 5467 (PVC armoured), BS 6724 (LSZH armoured) | Listed per applicable UL standard | GB/T 12706.1, SANS 1507 |
| MV power cable | IEC 60502-2 | - | Listed per applicable UL standard | - |
| Solar DC cable | EN 50618 (H1Z2Z2-K), IEC 62930 | Same as EN | UL 4703 PV Wire | - |
| Fibre and data | ITU-T G.652.D / G.657, IEC 61753-1 for connectors | - | TIA-568, TIA-598, NEC Article 770 / 800 ratings | Telcordia GR-20 / GR-409 |
Two notes help. Chinese national standards often mirror IEC: GB/T 5023 follows IEC 60227 and GB/T 5013 follows IEC 60245. Thailand's TIS 11 Parts 3 to 5 adopt the IEC 60227 types identically. That makes an IEC-based plant a reasonable starting point for several markets, but the market rule still decides.
Voltage notation is a second trap. IEC writes 0.6/1 kV for low-voltage power cable, meaning 0.6 kV conductor to earth and 1 kV between conductors; UL building wire is rated 600 V; IEC 60227 wiring is 450/750 V. The numbers are not interchangeable, and a cable sold into a market under the wrong notation is usually a cable made to the wrong standard. Read the designation first, as explained in reading cable designations, and only then compare prices.
Test standards that sit on top
Fire behaviour is where buyers most often over-read a document. A cable can be flame-retardant to IEC 60332-1-2 per test report and still fail a bunched test to IEC 60332-3. A cable can carry a CPR class Cca-s1,d1,a1 declared on the DoP and say nothing about circuit integrity, which is a separate IEC 60331, BS 6387 CWZ or BS 8519 test. The fire performance classes page lays out which test proves what.
Routine factory tests are the other half. Conductor resistance against IEC 60228, spark or voltage tests, insulation and sheath thickness, overall diameter and print checks apply to every drum. Medium-voltage cable adds the routine voltage test of 3.5 U0 for 5 minutes and partial discharge to IEC 60885-3. The testing and inspection page lists what the desk checks before shipment.
Market rules by destination
| Market | Rule | What it adds to the order |
|---|---|---|
| European Union | CPR with EN 50575 | Reaction-to-fire class, DoP and CE marking on the label for cables permanently installed in buildings |
| Great Britain | UK CPR | CE marking still accepted for construction products; UKCA optional |
| United States | Local AHJ practice | US projects usually require UL (or other NRTL) listed products to satisfy the AHJ |
| Thailand | TIS 11, TISI | Parts 3 and 4 mandatory since 30 July 2013 |
| Nigeria / Kenya | SONCAP / PVoC | Product certificate plus a certificate for each shipment |
| South Africa | NRCS, VC 8075, SANS 1507 | Letter of Authority held by a South African applicant |
| Saudi Arabia | SASO via SABER | PCoC for the product and SCoC for each shipment |
| China | CCC | Only 450/750 V and below PVC and rubber insulated cables |
The desk has not researched Latin America or the UAE in the same depth. For those, and in every case where the rule decides customs clearance, confirm the route with your importer of record or customs broker before the order is placed.
How to use the map on an RFQ
- Name the destination and the installer. The same construction may need a DoP in Germany, a listing in Texas and a TISI licence in Bangkok.
- Name one product standard per item. "IEC 60502-1, 0.6/1 kV Cu/XLPE/PVC 4x25 mm2" is a specification; "IEC or BS" is not.
- Add the project tests. Bunched flame category, LSZH tests or circuit integrity, with the test report you expect to receive.
- Ask who holds the certificate. Certificates belong to the partner plant and to a specific construction; the desk checks them in the certifier's public database per order.
- Agree the documents with quantities. DoP, test reports, CoC or SC paperwork change both lead time and cost, so they belong in the quote request.
The articles in this group go one layer deeper: EU CPR and DoP, UL listing for US building wire and the African and Gulf certificate routes. None of them is legal advice; the desk prepares the technical file, and the final call on a market rule sits with your importer of record, customs broker or AHJ.