CE Marking: What It Means for PAT Testing

During a PAT inspection it’s common to find equipment with missing, suspicious, or incorrectly printed conformity marks. A frequent question we get is: “Should an item fail a PAT test if it does not have a CE mark?”

As with many aspects of PAT testing, there isn’t a single yes/no answer. The CE mark relates to placing new equipment on the market, whereas PAT testing focuses on in-service safety, visual inspection and electrical testing of equipment already in use. That said, markings (and the way they’re used) can still give you useful clues about whether an item is likely to be genuine and compliant.

Should an Item Fail a PAT Test if It Has No CE Mark?

Not automatically. Older equipment may have no mark due to age, wear, or because it pre-dates modern marking requirements. The IET Code of Practice also notes that the absence of CE markings on second-hand equipment should not necessarily prevent resale if the equipment is otherwise safe and suitable.

"When second-hand equipment does not have relevant CE and similar markings displayed on it, due to wear and tear or because manufacture was before conformance marking, this should not prevent its resale." - IET Code of Practice

However, a missing or suspicious mark can still be a risk indicator, especially on modern plug-in power supplies, chargers, extension leads, or other high-risk items. Use it as a prompt to look more closely at:

• Overall build quality (plastics, moulding, strain relief, pins)
• Rating label quality and plausibility (input/output ratings, manufacturer details)
• Correct fuse and plug construction where applicable
• Any signs of overheating, damage, or prior repair

Fake and Misused CE Marks: Why It Matters

CE marking is a form of self-declaration: the manufacturer (or importer) declares conformity with relevant safety standards and issues a Declaration of Conformity. Importantly, it is not an independent approval mark and it does not guarantee an item is safe. In practice, the CE mark is widely abused, especially on low-quality imports, and spotting obvious marking problems can help you identify potentially dangerous items during the visual inspection stage.

There are specific rules about the CE mark itself. It must be at least 5mm high and the official proportions must be followed (as shown in Fig.1).

The “Chinese Export” Mark (Common Misconception)

You may see a CE-like logo with the letters close together (Fig.2). This is often referred to online as the “Chinese Export” mark. The European Commission has previously stated it is not aware of any official “China export mark”, it is simply CE marking that does not follow the prescribed dimensions and proportions.

If a manufacturer has genuinely assessed conformity and completed the required technical process, it is unlikely they would then apply an incorrect or distorted mark. A non-standard CE logo should therefore be treated as a warning sign and an invitation to scrutinise the item carefully.

How to Spot a Genuine CE Mark

• Spacing: there should be a noticeable space between the “C” and the “E”.
• Letter E: the centre line of the “E” is shorter than the lines above and below.
• Minimum size: at least 5mm high (unless the product is very small and specific rules apply).
• Proportions: line thickness and curvature should match the official proportions.
• Context: it should normally appear close to manufacturer/importer information and the rating label.

Fake or distorted CE marks are commonly seen on mobile phone chargers and plug-in power supplies. We would advise that if an AC adaptor or similar item with an incorrect CE mark is found during the PAT inspection it should be failed. These items are often poorly made using inferior plastics and other materials and can present a significant risk of electric shock and fire. For real-world examples (and what to look for), see our article on fake chargers.

Important Exception: Plugs, Adaptors and Fuses Must NOT Be CE Marked

As well as incorrect logos, you should also be aware of incorrect use of the CE mark. Most electrical equipment will carry a conformity mark, but there are important exceptions. In particular:

• Domestic plugs, sockets and plug adaptors (e.g. BS 1363 accessories) must not carry CE marking.
• BS 1362 Fuses must not carry CE marking.

"CE Marking is not to be used. Its use may constitute an offence under section 1 of the Trade Descriptions Act 1968." – Guidance notes on the UK Plugs & Sockets etc. (Safety) Regulations 1994

Why is this? Unlike most electrical products, domestic mains plugs and socket-outlets are not harmonised across Europe. Different EU member states use different plug and socket systems, with their own national standards and regulations. Because of this, “plugs and socket outlets for domestic use” are specifically excluded from the scope of the EU Low Voltage Directive (the directive that normally drives CE marking for many electrical products).

In the UK, BS 1363 plugs, adaptors and plug fuses are instead controlled by separate national requirements (the UK Plugs & Sockets etc. (Safety) Regulations and associated approval/marking rules). This is why guidance notes state that CE marking is not to be used on these items, and its use may constitute an offence.

Finding a CE-marked plug, adaptor, or plug fuse during an inspection is a strong indicator the product may be counterfeit and may not meet UK safety requirements. If in doubt, replace it with a known compliant item from a reputable supplier. We’ve collected more real-world examples in our guide to spotting counterfeit electrical equipment.

CE vs UKCA: What Should You Do During PAT Inspection?

For PAT testing, the marking is only one part of the picture. If the item looks credible, is appropriately labelled, and passes the relevant inspection and tests, then the in-service safety outcome is what matters. If the marking is clearly wrong, used where it should not be used, or appears inconsistent with the product type, treat that as a warning sign and investigate further.

If you want to build confidence in visual inspection (including spotting counterfeit or non-compliant equipment), it’s covered in our PAT training courses.

Frequently Asked Questions