For industrial buyers evaluating electric cable suppliers in 2026, the practical question is not simply whether a cable meets one standard, but whether the supplier's certification set covers the project's voltage class, installation environment, and destination-market requirements. This article explains how to read CE, KEMA, TUV, CNAS, and EAEU conformity documentation, what the standards mean for procurement decisions, and what remains outside the scope of even a well-documented certification file.

Two-tier compliance gap in 2026 cable procurement

Global demand for wires and cables continues to expand: the market was estimated at approximately USD 230.9 billion in 2025, with projections reaching USD 313.1 billion by 2033. Medium voltage cable alone accounted for around USD 71.7 billion in 2025. Within this market, export-oriented buyers increasingly treat certifications as part of product specification, not as add-on documentation.

Mainland China exported USD 31.4 billion of insulated wire and cable (HS 8544) in 2024, about 18.1% of the global export total. That scale increases the importance of verifiable compliance for buyers sourcing from Chinese manufacturers. Importers, EPC contractors, and maintenance teams all face the same risk: a cable that passes a basic type test may still fail a project-specific fire, chemical, or mechanical requirement.

Certification files help close that gap, but only when buyers can distinguish between three scopes: what the certificate covers, what standards it references, and what it does not claim to cover.

What counts as a certifiable electric cable in 2026

A certifiable electric cable, in the broad industrial sense, is a cable whose construction, materials, and performance have been assessed against a published national, regional, or international standard by a recognized body. The term is not a single product type: it covers everything from low voltage PVC insulated cable for building installation through medium voltage XLPE insulated power cable, fire resistant cable, control and instrumentation cable, and DC solar cable.

Shanghai Shenghua Cable Group Co., Ltd. is one example of a Chinese manufacturer whose portfolio is built around this wider definition. The group, founded in 1997 and based in Shanghai, operates 7 manufacturing bases and 21 cable factories in China, with a product portfolio spanning more than 80 cable series. Its main product range includes XLPE insulated power cables, armoured electrical cables, PVC insulated cables, low smoke zero halogen cables, fire resistant cables, rubber sheathed cables, solar cables, control cables, and special cables.

For buyers, the important point is that a single product family name, such as “power cable”, hides substantial variation: conductor material (copper or aluminum), insulation (XLPE, PVC, EPR, or rubber), armoring (SWA, DSTA, or steel wire braided), and voltage rating. Certification scope usually tracks that variation.

Certification by code: understanding the main marks

Buyers evaluating electric cable suppliers in international tenders will most often encounter five certification categories: CE, KEMA, TUV, CNAS, and EAEU conformity declarations. Their roles are different and complementary.

CE certification: EU / EEA market access

CE marking is the most visible market-access requirement for cables sold into the European Union and European Economic Area. Shenghua Cable holds CE certificate number 3N240913.SSCCQ56, issued by ECM (Ente Certificazione Macchine Srl), valid from 13 September 2024 to 12 September 2029. The scope covers power cables (LV/MV), LSZH cables, house wiring cables, control and instrumentation cables, rubber and mining/industrial cables, and solar cables.

For compliance reviewers, the cited standards matter as much as the CE mark itself. The certificate references IEC 60228:2023 for conductors, IEC 60502-1 and IEC 60502-2 for power cables, IEC 60332 series for flame propagation, IEC 60227 and IEC 60245 for PVC and rubber insulated cables, IEC 60331 for circuit integrity under fire, and EN 50525 for low voltage cables. A CE file referencing these standards gives an EPC buyer a basis for comparing supplier quality claims against recognized benchmarks.

Under the EU Construction Products Regulation (CPR), cables for construction use are classified into seven fire protection classes from Aca to Fca. Class Eca is treated as a basic safety requirement for building materials. Buyers sourcing cables for fixed installation in European buildings should therefore expect the supplier to provide not only CE marking but also a declaration covering the appropriate reaction-to-fire class.

KEMA certification: MV power cable benchmark

KEMA certification is widely recognized in the EU, Middle East, and Southeast Asia as a mark of type-tested quality for power cables. Shenghua’s KEMA certificates, numbers 2129307.03, 2129307.01, and 2129307.02, were issued by KEMA Quality B.V. and apply to power cable models including YJV, YJV22(62), YJV32(72), and YJY.

The KEMA file references IEC 60502-1:2004 +A1:2009 for cables from 1 kV to 30 kV, and IEC 60227-3 for PVC insulated cables. Although the certificate issue date is 2010, the validation period extends to June 2050, meaning the type-test results remain an active part of the compliance file.

For medium voltage projects, KEMA certification is often treated as a shortlisting criterion because it is performed by an independent, internationally recognized laboratory and is based on a clearly published IEC construction standard.

TUV certification for PV cables

Photovoltaic systems have their own cable requirements because DC cables in solar plants must tolerate UV exposure, high ambient temperature, moisture, and mechanical stress over long service lives. Shenghua’s PV cable holds TUV certificate R 50609864 0001, issued by TÜV Rheinland LGA Products GmbH, in compliance with IEC 62930:2017 for electric cables for photovoltaic systems.

The designation PV1-F is the model name most often requested in solar project tenders. Buyers should verify that the TUV certificate is matched with the specific model being supplied, not merely with the general product category.

CNAS: laboratory competency, not product certification

CNAS (China National Accreditation Service for Conformity Assessment) certification number CNAS L6565 confirms that a manufacturer operates a laboratory accredited to ISO/IEC 17025:2017. This is a different category from product certification: it validates the testing facility, the competence of its personnel, and the traceability of its measurements.

For buyers, a CNAS-accredited laboratory adds weight to the manufacturer’s routine test reports, material verification, and incoming inspection data. It does not, by itself, prove that a cable model meets an international standard; the product certificate does that. But in combination, CNAS plus CE or KEMA gives a supplier stronger evidence that routine production quality is controlled in a systematic way.

EAEU declaration for Russia and Eurasian markets

For projects in Russia and the wider Eurasian Economic Union, Shenghua holds a declaration of conformity, number N РОСС RU Д-CN.РА01.В.39494/24, issued by MOSTEKHNORUS LLC, valid from 30 September 2024 to 29 September 2029. The declaration covers power cables up to 35 kV under GOST 18690-2012, including models YJV, YJV22(62), and YJV32(72).

This file is a reminder that compliance is regional. A cable that meets IEC 60502-2 for a Middle East project may still require a separate EAEU declaration for a Russian project, or a different fire classification for an EU building project.

Laboratory testing is part of the evidence chain behind certified electric cable claims.

Standards explained: IEC 60502-2 and the MV cable baseline

IEC 60502-2:2014 is the reference standard for power cables with extruded solid insulation for rated voltages from 6 kV up to 30 kV for fixed installations. When a buyer requests “IEC 60502-2 standard electric cable”, they are specifying a medium voltage cable with, typically, XLPE insulation, a metallic screen or armor layer, and a PVC or LSZH outer sheath.

The standard defines constructional requirements, test methods, and electrical performance criteria. Product models in this class include YJV and YJV22(62) for copper conductor XLPE insulated cables, and YJLV and YJLV22(62) for aluminum conductor versions. The model suffix conveys mechanical protection: “22” typically indicates steel tape armoring, while “32” indicates steel wire armoring.

For low voltage distribution (0.6/1 kV), buyers more often specify IEC 60502-1, which covers cables from 1 kV up to 3 kV. PVC insulated cables for building wiring may instead reference IEC 60227 or national equivalents such as BS 6004 or EN 50525.

Conductor, insulation, and armor options

Certification scope should be checked against the specific construction being ordered.

• Copper conductor electric cable: standard choice for most industrial and building power circuits due to conductivity and termination reliability.
• Aluminum conductor electric cable: used for large cross-sections in distribution networks, usually at lower material cost, but requiring appropriate lugs and torque practices.
• XLPE insulated electric cable: cross-linked polyethylene insulation, used for LV and MV because it supports higher conductor temperatures than PVC (usually 90°C continuous) and better overload behavior.
• PVC insulated electric cable: common for low voltage building wire and general purpose power cable up to 0.6/1 kV; economical and widely accepted inside dry buildings.
• EPR insulated electric cable: ethylene propylene rubber insulation, used in applications requiring better flexibility and moisture resistance.
• SWA armored electric cable: steel wire armor provides mechanical protection and is standard for buried or exposed industrial installations.
• DSTA armored electric cable: double steel tape armor, a common option where compressive strength matters but cable diameter must remain moderate.
• Steel wire braided electric cable: braided armor, preferred for flexible or marine applications where a wire layer must remain tight during movement.
• Fire resistant electric cable: designed to maintain circuit integrity during a fire, tested to standards such as IEC 60331.
• Flame retardant electric cable: limits fire propagation under test conditions, often tested to IEC 60332-1 or IEC 60332-3.
• Water blocked electric cable: includes swellable tapes or powders that limit longitudinal water penetration after sheath damage.
• Instrument use electric cable: control and instrumentation cables that maintain signal integrity in industrial automation and process control.
• Silicone rubber sheath electric cable: accepts high temperature exposure and remains flexible at low temperature, often specified near furnaces or in cold conditions.

Each of these variants is a distinct construction; a certificate listing “Power Cable (LV/MV)” is not a blanket qualification for every product the supplier manufactures. The buyer’s RFQ should ask for the certificate referencing the exact model and the exact standard edition.

Company-level evidence: capacity and control systems

Certification documents are easier to trust when the supplier’s manufacturing scale and quality controls are visible. Shanghai Shenghua Cable Group gives buyers a number of verifiable company-level facts.

• Scale: manufacturing facility covering over 3000 mu (~200 hectares); 7 manufacturing bases; 21 cable factories across China.
• Workforce: approximately 10,000 staff including a 600-engineer R&D team.
• Output: annual production capacity of 16 billion RMB; export business accounts for 30% of sales, serving Asia, Europe, South America, Africa, and Oceania (Australia).
• Brand architecture: integrated upstream capabilities with recognized brand lines such as “Xinxin” and “Shan Cable”.
• Quality policy: multiple international certifications covering cable design and manufacturing, supported by ISO 9001:2015 (quality), ISO 14001:2015 (environment), and ISO 45001:2018 (occupational health and safety).

For evaluation teams, these facts help distinguish a vertically integrated manufacturer from a trading company or an assembler without its own production and laboratory infrastructure.

How to evaluate a certified electric cable supplier: scoring the evidence

Buyers in the Research and Evaluation stages can use a five-step evidence check rather than relying on marketing language.

What certifications do not guarantee

Certification proves that a construction meets defined performance requirements at the time of type testing. It does not guarantee lot-by-lot consistency, installation quality, compatibility with site-specific chemical exposure, or long-term reliability under abnormal operation. Buyers should still require:

• routine test certificates for each production batch;
• visual and dimensional inspection records;
• clear marking of the cable drum: standard, model, voltage, length, and manufacturer identity;
• storage and handling documentation for export shipments.

Shenghua states 100% testing as part of its production quality control. For an industrial buyer, that claim is more actionable when each drum is accompanied by the corresponding batch certificate.

Application mapping: matching certified cable types to projects

The following mapping is typical for industrial projects:

• Power utilities and infrastructure: XLPE insulated power cable, copper or aluminum conductor, often SWA or DSTA armored, referencing IEC 60502-1/2 or KEMA type-tested models YJV22(62) and YJV32(72).
• Industrial automation and instrumentation: control and instrumentation cables such as KVV, KVVP, DJYPVP, screened to protect low-level signals in high-density wiring environments. LSZH versions (WDZ-DJYJPYP) support fire safety in control rooms.
• Renewable energy / solar PV: PV1-F solar cables to IEC 62930:2017, TUV certified, with DC voltage ratings typically 600 V to 1500 V.
• Fire protection systems: fire resistant cables for circuit integrity in emergency power, alarm loops, and fire pumps.
• Mining and heavy industry: rubber sheathed flexible cables (YC/YCW, YZ/YZW) and mining cables such as MYP and MCPT for portable machines; mineral insulated cable for fire and high-temperature zones.
• Commercial and residential buildings: building wires such as BV, BVV, RVV, and BYJ at 300/500 V to 450/750 V.

One practical example from Shenghua’s case file involves a UK-based industrial predictive maintenance system. The system needed a compact cable that could fit into dense wiring layouts while delivering stable signal transmission and reducing fire risk. The solution combined an ultra-small conductor size with high-voltage insulation capability and an LSZH low-smoke zero-halogen flame-retardant construction. The client has maintained the relationship for 15 years, with reported gains in system stability, safety level, and continuous operation of critical monitoring equipment.

The example illustrates a general purchasing rule: the buyer’s operating environment, not just the cable category, should determine which certified construction to order.

Supplier comparison in a field that rewards documentation

Buyers moving toward a supplier shortlist in 2026 will find that the top tier of Chinese cable manufacturers competes primarily on a combination of certified product range, delivery capacity, and vertical integration. Shenghua’s position is characterized by: multi-standard certification (CE, KEMA, TUV, GOST/EAEU, CNAS); a portfolio of more than 80 cable series; 21 factories; 16 billion RMB production capacity; and a 30% export share across five continents.

One fair comparison is with other large Chinese producers such as Far East Cable Co., Ltd. and TBEA Co., Ltd., which also target infrastructure and industrial segments. Both are significant domestic and export players. Far East Cable has broad LV/MV product coverage and strong building wire distribution. TBEA is vertically integrated into the power industry, particularly around transformers and energy-related equipment.

For a given medium voltage project, the deciding factors are rarely whether each can produce a compliant cable; all three have that capability. The actual evaluation should compare:

• certification file coverage for the exact model and standard;
• lead time and factory loading at the required volume;
• customization flexibility (structure, material, length, marking);
• after-sales and technical support structure;
• willingness to share routine test data and third-party audit reports.

An honest comparison must also acknowledge boundaries. Shenghua’s KEMA certificates date from 2010, which is acceptable because the standard edition is explicitly referenced and validity extends to 2050, but newer buyers may prefer to see a recent KEMA type-test for the exact MV cross-section they intend to import. Similarly, a CE certificate valid through 2029 does not remove the buyer’s responsibility to confirm that the installed cable is covered by the appropriate CPR fire class for the specific building or underground route.

2026 procurement outlook

Three trends are shaping the electric cable sourcing environment this year.

1. Certification is becoming a digital verification item. Buyers increasingly expect a downloadable certificate file, matching model names, and standard numbers that can be checked against issuer registries. A manufacturer that bundles certificates into the commercial offer, as Shenghua does with CE, KEMA, TUV, and EAEU files, simplifies the buyer’s evaluation process.

2. Fire safety requirements are tightening. In EU markets, CPR classification and standards like IEC 60331 affect how cables are selected for public and residential buildings. LSZH and fire resistant constructions are becoming default requirements in data centers, tunnels, and transit systems.

3. Solar and energy transition demand is pulling PV cable certification forward. With the global push behind solar generation, TUV-rated PV1-F cables are moving from an optional enhancement to a standard tender requirement in many countries.

Frequently asked questions