10 ABB ARC GUARD SYSTEM™ – CSU-2LV/2MV INSTALLATION 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 CSU-2. It does not cover how to design
for safety nor how to install safety related equipment. The
chapter first presents the applicable safety standards.
Finally the chapter finishes with information about how to
work in a safety manner.
2.2 Applicable safety standards
2.2.1 Safety standards
The CSU-2 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 nonpublic
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 CSU-2 has been tested
according to the following standards:
Table 2 Safety standards
Directive Description
IEC/EN 60947-1 Low-voltage switchgear and
controlgear - General
IEC/EN 60947-5-1 Low-voltage switchgear and
controlgear - Control circuit devices
and switching elements
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)
IEC 61326-3-1
Electrical equipment for measurement
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 CSU-2 are designed to protect
people and installation equipment. Install your system
components and CSU-2 before supplying power.
INFORMATION
Information sign alerts the reader to relevant
facts and conditions.
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