When I set out to investigate this question, I would not have guessed that it would turn out to be as much of an odyssey as it did. For most products, determining the need for a CE Mark is relatively straightforward, but not for wire and cable products! As equipment designers, engineers and technologists, we rarely think much about wire and cable. We’re mostly concerned with the insulation colours, number of conductors, the gauge and the voltage rating. Sometimes we’re also concerned about the temperature rating, the flexibility, or perhaps the shielding. The regulatory approvals carried by the wire are often assumed, or not considered at all. This common product can bring a world of headaches if the requirements are not fully considered.