Paragraph 1.2 Test of powered equipment free of loadF1

Before measuring the noise emitted by powered equipment free of load, manufacturers or their authorised representatives in the Union shall warm up the engine and hydraulic system of the equipment in accordance with the instructions of use and shall observe the safety requirements.

Manufacturers or their authorised representatives in the Union shall measure the noise with the equipment in stationary position, without operating the working equipment or travelling mechanism. For the purpose of the measurement, the engine shall idle at no less than the rated speed corresponding to the net power.

Where the machine is powered by a generator or from the mains, the frequency of the supply current, specified for the motor by the manufacturer, shall be stable at ± 1 Hz if the machine is equipped with an induction motor, and the supply voltage at ± 1 % of the rated voltage if the machine is equipped with a commutator motor. The supply voltage shall be measured at the plug of a non-detachable cable or cord, or at the inlet of the machine if a detachable cable is provided. The waveform of the current supplied from the generator shall be similar to that obtained from the mains.

Where multiple voltage ranges are labelled at the machine, manufacturers or their authorised representatives in the Union shall take the measurements at the highest labelled voltage range. If the voltage range is 220-240 V, the test shall be carried out at 230 V.

If the machine is powered by one or more batteries, the batteries shall be charged to at least 70 % of its capacity.

The rated speed used, and the corresponding net power, shall be stated by the manufacturers or their authorised representatives in the Union in the test report.

Where the equipment has several engines, those engines shall work simultaneously during the measurements, unless that is not possible, in which case the noise emissions of each possible combination of engines shall be measured.