Void Nexus Series - Cable and Wiring; Electrical Safety Precautions; Cable Considerations for Installations; Impedance Graph

Page 8
UG10578-2.0 - Nexus XL User Guide V2.0
4 Cable and Wiring
4.1 Electrical safety
To avoid electrical hazards please note the following:
• Do not access the inside of any electrical equipment. Refer servicing to
Void-approved service agents.
4.2 Cable considerations for fixed installations
We recommend specifying installation-grade Low Smoke Zero Halogen (LSZH) cables for
permanent installations. The cables should use Oxygen Free Copper (OFC) of grade C11000
or above. Cables for permanent installations should be compliant with the following standards:
• IEC 60332.1 Fire retardancy of a single cable
• IEC 60332.3C Fire retardancy of bunched cables
• IEC 60754.1 Amount of Halogen Gas Emissions
• IEC 60754.2 Degree of acidity of released gases
• IEC 61034.2 Measurement of smoke density.
We suggest using the following maximum copper cable lengths to keep level losses below 0.6 dB.
Metric mm
2
Imperial AWG 8 Ω load 4 Ω load 2 Ω load
2.50 mm
2
13 AWG 36 m 18 m 9 m
4.00 mm
2
11 AWG 60 m 30 m 15 m
4.3 Impedance graph
Figure 4.1: Impedance graph
10 10020 50
200 500 1k 2k 5k 10k 20k
30
60
90
120
150
Frequency (Hz)
Impedance (Ω)