Siemens SICAM Q80 Operating Instruction page 21

Electrical connections
10.3
Warning
The following procedures may never be performed in the presence of dangerous voltage
levels(voltage breaker) and only by personnel possessing relevant qualifications and familiar with
the safety and caution regulations.
Note
In electrical installation it is necessary to observe and comply with national and international
regulations governing high voltage systems.
Prior to commissioning the device, check that all connections have been made correctly.
The grounding terminal must be connected with the protection ground of the control cabinet. For a DC-device
mounted on a top-hat rail, the grounding of the top-hat rail is also sufficient.
The current outputs of any current transformers connected in-line must be short-circuited before you can
disconnect the current leads to the device.
The user is responsible for checking the polarity and the phase assignment of the transducers.
Before commissioning the device, it should have at least two hours to rest in the location where it is to be
operated in order to acclimatize to the prevailing temperature and to avoid condensation of humidity.
10.4 Commissioning
Subsequent to the last chapter in which an overview of the system was presented, this chapter describes the
commissioning process. This chapter presents a description of the entire installation process in its correct sequence
of steps.
You need not connect any measurement leads before starting. For starters, connect the power and interface cables.
10.4.1 Before starting
Condensation may form on the circuit boards when the device is moved from a cold environment to a warm one. In
these situations, always wait until the device warms up to room temperature and is completely dry before turning it on.
The acclimatization period should take about 2 hours.
Before taking measurements, we recommend that you give the device a warming-up phase of at least 30 min.
SICAM Q80 7KG8080 is technically approved for ambient temperatures of -10°C to 55°C. Make sure that the
ventilation slits on the sides of the device housing are unobstructed in order to avoid internal heat accumulation.
The device conforms to Pollution Degree 2, which means that it's made to tolerate non-conducting contaminants and
to withstand occasional conductivity due to condensation. The unit may not be operated in the presence of aggressive
chemicals or danger of explosion.
Assembly, Commissioning, Parameterization
Power Quality Recorder SICAM Q80 7KG8080, Operating instruction
E50417-B1074-C419-A2, Release 12.01.2015
E-21