Work equipment to which design and construction obligations other than those laid down for the placing on the market of machinery apply is the following:
1° Agricultural or forestry tractors, and separate technical units, systems and components therefor, excluding those specially designed for the armed forces, civil defence, fire-fighting services or services responsible for maintaining law and order;
2° Fence energisers;
3° Industrial radiology equipment emitting ionising radiation and used for non-medical purposes.