HARVEY Axminster Trade AT220TSM, Manual, Page: 6 / 48

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3.4 Electrical Power Requirements
List of the motor usage & pre-wired voltage
Motor(kW) Voltage(V) Freq.(Hz) Nominal current (A) Pre-wired Cords
4 380-415V 50(60) 10 380-415V/3PH 5
The input power supply of the machine is 3/N/PE, AC400V. The steady-state AC power supply is
0.9
～
1.1 times of the rated value.
Frequency
0.99
～
1.01 times of rated frequency ( 50 Hz , continuous working)
0.98
～
1.02 times of rated frequency ( 50 Hz, short period working)
Harmonics
The sum of 2nd-5th distorted harmonic must not exceed 10% of RMS of voltage. An additional
2% of RMS of line voltage is allowed to for the sum of 6th-30th harmonic.
Unbalanced Voltage
Neither Negative nor zero sequence components is allowed to exceed 2% of the positive
sequence component.
Electrical Protection
End user should provide protection device against overvoltage due to lightning and
short-circuited protection device at the power supply.
Ingress Protection at the Inlet of Incoming Power Cable
Ensure IP54 protection class for the incoming cable when finishing the installation in place.t.
3.5 Noise
3.4.1 Reference Standards
The measurements of noise emission were conducted according to the EN ISO 11202 for the
determination of sound pressure level at the operation positions. When the measured sound
pressure levels at the operation positions exceed 85dB(A), the measurements of sound power
levels were conducted according to EN ISO 3746.
3.4.2 Operating Conditions
The operating conditions for the noise measurement comply with the Annex A of ISO 7960:1995.
3.4.3 Testing Results
NO LOAD LOAD
L
w
83.3 dB(A) 94.7 dB(A)
L
P
68.2 dB(A) 79.7 dB(A)
Associated Uncertainty 4 dB(A)
Measured made in accordance with EN ISO 3746:1995 and EN ISO 11202:1995.
Note: Background noise of measurement surrounding is 65.0dB (A).
The figures quoted are emission levels and are not necessarily safe working levels. Whilst there
is a correlation between the emission and exposure levels, this cannot be used reliably to
determine whether or not further precautions are required. Factors that influence the actual level
of exposure of the workforce include the characteristics of the work room and the other sources
of noise, etc., i.e. the number of machines and other adjacent processes. Also, the permissible
exposure level can vary from country to country. This information, however, will enable the user
of the machine to make a better evaluation of the hazard and risk.