In compliance discussions about exporting cables to the EU, "CPR Eca" is one of the most frequently asked — and most easily misunderstood — terms. Many buyers assume "getting Eca" requires running a full set of fire tests, and some factories treat a TÜV photovoltaic certificate as equivalent to a CPR DoP. This article uses five common questions to clarify, in one pass, the testing boundary of CPR Eca, the AVCP system, and its relationship with TÜV.
Further reading: EU CPR Cable Certification Complete Guide (EN 50575 / Euroclass) · Browse all cable certification articles
Clearing the Biggest Misconception First: Eca Tests Only One Item
Many people assume "doing CPR Eca" means running a pile of fire tests, but under EN 13501-6, the Eca criterion is just a single test: EN 60332-1-2 (single vertical flame test, char height H ≤ 425 mm). The additional smoke-density / acidity tests are required only for Dca / Cca / B2ca / B1ca (which need the EN 50399 large-scale fire test + EN 61034-2 smoke + EN 60754-2 acidity). Fca requires no testing at all (manufacturer self-declaration suffices).
In one sentence: Eca is one of the lowest testing-cost fire-reaction classes in the CPR system — not the "hardest" tier.
AVCP System Has Three Tiers (Determines Whether You Retest Repeatedly)
CPR uses the AVCP (Assessment and Verification of Constancy of Performance) system to define what a manufacturer must do. It directly determines whether you "test once and it lasts a lifetime" or "sample-test every year":
| Class | AVCP System | Testing requirement | Notified-body continuous surveillance |
|---|---|---|---|
| Aca / B1ca / B2ca / Cca | System 1+ | Initial test + FPC factory audit + annual sampling | Yes (strictest) |
| Dca / Eca | System 3 | One-off initial type test only | No (manufacturer self-manages FPC) |
| Fca | System 4 | No test; manufacturer self-declaration | No |
FPC = Factory Production Control, the internal quality system a manufacturer must maintain — independent of whether samples are sent for testing.
Five Frequently Asked Questions Answered
1. Does the CPR Eca class require every cable to be separately flame-tested?
No. Three points to clarify:
- Scope boundary: CPR mandates only cables "permanently installed in construction works" — power / control / communication cables. Flexible cords for movable equipment, pure internal equipment wiring, vehicle/marine cables, etc. are out of scope and simply not required to comply with CPR.
- Eca itself: Even when within the mandatory scope, Eca belongs to AVCP System 3, requiring only a one-off initial test — not a test per batch or per order.
- Higher classes are stricter: Only Aca–Cca (System 1+) require annual sampling plus continuous notified-body surveillance. Fca doesn't even require testing.
So "every cable needs a separate flame test" is a typical misconception — it neither covers all cables, nor does Eca require retesting per order.
2. Already holding a CPR Eca type test report for the same model, does a new order need a fresh flame test?
No retest needed. Eca falls under System 3; the consensus among EU notified laboratories is: "tests the product once in its lifetime; it is not tested again unless the construction or materials of the product have changed." — i.e., tested only once within the product's lifetime, unless the construction or materials change.
For a new order of the same model, same construction, same materials, simply reuse the original classification report; what the manufacturer must maintain is:
- FPC (internal production control) remains valid;
- DoP (Declaration of Performance) remains valid and consistent with the actual product;
- the product's construction / materials are unchanged (once changed, re-assessment or an EXAP extension is required).
3. With no Eca type test report for the model, what tests are needed to claim Eca?
Claiming Eca takes just three steps:
- Submit for testing: Send samples to an EU notified laboratory (Notified Laboratory, System 3) for the EN 60332-1-2 single vertical flame test (meeting H ≤ 425 mm);
- Obtain the report: The laboratory issues a Classification Report confirming Eca is achieved;
- Issue documentation: Prepare the DoP (Declaration of Performance) and affix the CE marking.
Note: Eca does not require smoke (s) / droplet (d) / acidity (a) additional classifications — those apply only to B1ca–Dca. Also note: CPR 2.0 (Regulation (EU) 2024/3110) entered into force on 2026-01-08; during the transition EN 50575:2014+A1:2016 remains applicable, and the DoP may be provided digitally (QR / URL form).
4. Does a cable's TÜV photovoltaic certificate include the CPR Eca class? Are they the same testing system?
It does not include it, nor are they the same system. The two are independent compliance lines:
| Dimension | TÜV photovoltaic certificate (e.g., EN 50618) | CPR DoP (incl. Eca) |
|---|---|---|
| Nature | Product performance / safety certification | Fire-reaction classification under construction regulation |
| What is tested | Electrical, withstand voltage, UV, ozone, mechanical endurance | Single-flame (Eca) / large-scale fire + smoke + acidity (higher classes) |
| Issuer | Third-party certification body (TÜV, etc.) | Manufacturer issues DoP + CE, based on notified-lab classification report |
| Mandating basis | Buyer / market requirement | EU Construction Products Regulation (EU) 2024/3110 |
Multiple cable manufacturers consistently confirm: EU photovoltaic cables must hold both TÜV + CPR DoP, and the two cannot substitute for each other; however, a single model can "run both lines" to satisfy both (one structural design, two separate certificates). For PV cable selection see EN 50618 vs IEC 62930: EU Solar PV Cable Selection Guide.
5. Can a CPR Eca type test report be shared across different cable constructions and materials?
Not simply shared — it must follow EXAP (Extended Application, extended application) product-family grouping.
To share one assessment, a product family must simultaneously meet:
- Same basic construction + voltage rating;
- Same manufacturer;
- Same insulation / sheath material;
- Same design specification;
- Only conductor size and number of cores may differ to fall in the same group.
Any of the following changes requires a separate group / test:
- Conductor structure changed (solid Class 1/2 ↔ flexible Class 5/6);
- With / without armour or concentric layer;
- Different insulation / sheath material;
- Different generic group type (single-core unsheathed / single-core sheathed / multi-core sheathed / armoured).
Practical reminder: Eca has a low threshold and most halogen-free materials pass, but "claiming Eca" must be based on actual testing of the corresponding construction or a compliant EXAP extension — you cannot force-apply material A's report to material B.
Practical Tips (for Exporters)
When a customer says "we need CPR," don't just reply "we have TÜV" — push back and clarify three things:
- The required Euroclass (Eca / Dca / Cca? Higher means heavier testing);
- Whether s / d / a additional classifications are needed (smoke / droplet / acidity; public-works projects often require them);
- Target-country requirements (minimum class varies by country; Germany / UK often require ≥ Eca; tunnels / metros / hospitals often require Cca or above).
Clarify these three before quoting test lead time and cost, and you won't crash at the contract stage.
FAQ
Q1: Does CPR Eca require every cable to be separately flame-tested? A: No. CPR mandates only cables permanently installed in construction works; Eca belongs to AVCP System 3, requiring only a one-off initial test, not a retest per batch. Fca is even exempt from testing.
Q2: Holding an Eca report for the same model, does a new order need retesting? A: No. Under System 3 the product is tested only once in its lifetime, unless the construction or materials change. A new order reuses the original report while maintaining FPC and DoP.
Q3: With no Eca report, how do you claim Eca? A: Submit samples to an EU notified laboratory for EN 60332-1-2 (H ≤ 425 mm), obtain the classification report, then prepare the DoP and affix CE. Eca does not require smoke / acidity additional classifications.
Q4: Does a TÜV photovoltaic certificate include CPR Eca? A: It does not. TÜV (e.g., EN 50618) is a performance / safety certification, while CPR DoP is a construction fire-reaction classification — two separate systems that cannot substitute for each other; EU PV cables need both certificates.
Q5: Can an Eca report be shared across constructions / materials? A: Not simply. Follow the EXAP product family: same material, same manufacturer, differing only in cross-section / number of cores can be grouped together; any change in conductor structure, armour, or material requires a separate test.
