Shielding And Earthing; Introduction; Definitions; Power Supply And Battery Connections - Autronica AUTRO SAFE Self Verify BS-310 Installation Handbook

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2.4 Shielding and Earthing

2.4.1 Introduction

Due to requirements in EN54 and generic EMC-requirements, it is
very important to keep in mind how to make earthing and shielding of
cables when installing.

2.4.2 Definitions

Protective Earth
Protective Earth to
Cabinet
Chassis
Shield
0V_BAT
Detail drawing of Power
Supply / upper part of Fire

2.5 Power Supply and Battery Connections

Alarm Control Panel /
Controller

2.5.1 Connecting 230 VAC to Power Supply BSS-103A/02

NOTE!
The illustration below shows an overview of the mains connection (230 VAC) to the Power
Supply BSS-103A/02. The connection of mains power is done during commissioning. Until then,
do not connect the mains power .
Schematic outline inside cabinet - Front view
Installation Handbook, AutroSafe Interactive Fire Alarm System, Release 3, 116-P-ASAFE-FA/DE,
Termination point to the external protective earth. In AutroSafe this
is the connection at the BSS-103A/02 block terminal (terminal 1).
Main earth connection which ensures that the cabinet always is
connected to earth.
Note: Must not be removed or unscrewed.
Electrical connection to the steel cabinet. A screw on the rear
mounting plate (up left to the Power Supply) is provided for this.
This is in turn connected to the Protective Earth for human
protection and earthing.
Termination point for the shielding of cables, where provided.
Reference point for the battery circuit (isolated from earth/chassis).
Protective
Earth
Chassis
Power
Supply
BSS-
103A/02
Rev. J, 2011-12-06,
Autronica Fire and Security AS
Internal Cable Connections
Protective
Earth to
Cabinet
Protective Earth
(terminal)
230 V AC
Live Neutral