ABB Arc Guard System TVOC-2 Installation And Maintenance Manual page 10

10 ABB ARC GUARD SYSTEM™ – T VOC-2 INSTALL ATION AND MAINTENANCE GUIDE
2.1 Introduction
This chapter describes the safety principles and
procedures to be used when working with the Arc Guard
System™ or the Arc Monitor. It does not cover how
to design for safety nor how to install safety related
equipment. The chapter first presents applicable safety
standards. Finally the chapter finishes with information
about how to work in safety manner.
2.2 Applicable safety standards
2.2.1 Safety standards
This product was developed, designed and certified with
regard to improved reliability and integrity by using safety
principles and structures according to IEC 61508, SIL2.
The Arc Monitor has improved safety to fulfill the safety
standards specified in the following directives:
Table 1 Safety standards
Directive Description
2006/95/EC Low voltage equipment
2004/108/EC Electromagnetic compatibility
2.2.2 Personal safety
INFORMATION
This product has been designed for environment
A. Use of this product in environment B may
cause unwanted electromagnetic disturbances
in which case the user may be required to take
adequate mitigation measures.
• Environment A relates to low-voltage non public
or industrial networks, locations and installations
including highly disturbing sources.
• Environment B relates to low-voltage public networks
such as domestic, commercial and light industrial
locations, installations. Highly disturbing sources such
as arc welders are not covered by this environment.
To ensure safety and quality the Arc Monitor has been
tested according to the following standards:
Table 2 Safety standards
Directive Description
IEC/61508 SIL 2 Functional safety of electrical
programmable electronic safety-
related systems
IEC/EN 60947-1 Low voltage switchgear and
contractor - General
IEC/EN 60947-5-1 Low voltage switchgear and
contractor - Control circuit devices
and switching elements
IEC/EN 61010-1 Safety requirements for electrical
equipment
IEC 61000-6-2 (2005) Electromagnetic compatibility (EMC)-
Immunity for industrial
environments
IEC 61000-6-4 (2006) Electromagnetic compatibility (EMC)
- Emission standard for industrial
environments
IEC 61326-1 (2005) Electrical equipment for measurement
IEC 61326-3-1 and control Electrical equipment,
control and laboratory use (EMC)
IEC TS 61000-6-5 Electromagnetic compatibility -
immunity power stations
and substation environments
2.3 Safety signs
This section specifies all dangers that may arise from
performing the work detailed in the manual.
WARNING
Caution symbol indicates the presence of a
hazard which could result in personal injury.
WARNING
Warning symbol indicates the presence of
a hazard which could result in damage to
equipment or property.
Make sure that the supply voltage has been switched off
before connecting!
Working with high voltage is potentially lethal. Persons
subjected to high voltage may suffer cardiac arrest, burn
injuries, or other severe injuries. To avoid these hazards,
do not proceed working before removing the power to the
Arc Guard System.
Arc Guard System™ and Arc Monitor are designed to
protect people and installation equipment. Install your
system components and Arc Monitor before supplying
power.
DIP switches are used to activate Current Sensing Unit
(CSU), auto reset and assigning trip contacts. Changing
DIP switch can cause consequences with the Arc Guard
System.
Make sure you understand the consequences of changing
DIP switches.
More information regarding DIP switches,
See: "DIP switches" on page 29.
INFORMATION
Information sign alerts the reader to relevant
facts and conditions.