ISO 14982: Agricultural and Forestry Machinery

ISO 14982 specifies test methods and acceptance criteria for evaluating the electromagnetic compatibility of tractors and other mobile agricultural machinery, forest machinery, landscaping, and gardening machinery as supplied by the machine manufacturer. It applies to machines and electrical/electronic sub-assemblies (ESA's) which are manufactured after the date of publication of this International Standard.

Electrical components or subassemblies intended for fitting in machines are also within the scope of this standard, except regarding immunity for those parts whose functions are not involved in the direct control and modification of the state of the functions of the machine.

For the purposes of ISO 14982, the following definitions apply (selected definitions follow)

Electromagnetic compatibility is defined as the ability of a machine or components or a separate technical unit to function satisfactorily in its electromagnetic environment without introducing intolerable electromagnetic disturbances to anything in that environment.
 
Electromagnetic disturbance: any electromagnetic phenomenon which may degrade the performance of a machine or component or separate technical unity.

Electromagnetic immunity: the ability of a machine or component or separate technical unit to perform in the presence of specified electromagnetic disturbances without degradation of performance.

Electromagnetic environment: the totality of electromagnetic phenomena existing at a given location.

The requirements of ISO 14982 shall be met by a machine operating in accordance with its final purpose. According to the choice of the machine manufacturer, the following alternatives are possible to demonstrate conformity with this International Standard.
 

1. The requirements of this International Standard are deemed to be fulfilled for a complete machine when the requirements identified in clauses 5 and 6, as applicable, are fulfilled. If the machine manufacturer has chosen this alternative, no routine tests of the electrical systems or ESA's are required.

2. The requirement of the International Standard is also deemed to be fulfilled if it is confirmed by the machine manufacturer that all electrical/electronic system of ESA's are in accordance with this International Standard and have been installed in conformance with the recommended requirements of the ESA.

3. The requirements of this International Standard are also deemed to be fulfilled when the machine has no such equipment for which an immunity or interference test is required. In this case, no test is necessary.

No disturbances shall occur during testing which may affect the driver's direct control of the machine. The driver's direct control of the machine is exercised using steering, braking, the ground speed, or engine speed control. This also concerns the movements of parts of the machines and modifications of the state of function which may generate hazards or mislead others.

The electromagnetic emissions shall be measured using the method described in annex B at either of the defined antenna distances. The choice is left to the user according to the ISO 14982.