Honeywell RAEGuard 3 User Manual page 22

detector housing and another end is grounded reliably. The grounded wire should
select a cable with a cross-section not less than 4mm
resistor should be guaranteed to be less than 4ohms.
Internal Ground Connection
This connection is the same as the external ground connection, as shown in the
figure below. Usually, shielded cable is used, and the screen of cable is
connected to internal ground point. When using independent cable to ground, its
diameter should be no less than diameter of power cable.
RAEGuard 3 User Manual
2
, and the external grounded
External Ground
Points
Grounded wire with a
cross-sectional area not
less than 4mm
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2
Internal Ground
Points