Videotec NTC - Manual (Page 8)

EN - English - I
nstruc
tions manual
6
• This device was designed to be permanently
installed on a building or on a suitable structure.
• When installing the device, comply with all the
national standards.
• The electrical system to which the unit is
connected must be equipped with a bipolar circuit
breaker. The minimum distance between the
contacts must be 3mm (0.1in). The circuit breaker
must be provided with protection against the fault
current towards the ground (differential) and the
overcurrent (magnetothermal, maximum 20A).
• The device must be properly connected to the
earth circuit.
• Any device which could be installed inside the
product must comply with the current safety
standards.
• Before starting any operation, make sure the
power supply is disconnected.
• Installation category (also called Overvoltage
Category) specifies the level of mains voltage
surges that the equipment will be subjected to.
The category depends upon the location of the
equipment, and on any external surge protection
provided. Equipment in an industrial environment,
directly connected to major feeders/short branch
circuits, is subjected to Installation Category III. If
this is the case, a reduction to Installation Category
II is required. This can be achieved by use of an
isolating transformer with an earthed screen
between primary and secondary, or by fitting
listed Surge Protective Devices (SPDs) from live
to neutral and from neutral to earth. Listed SPDs
shall be designed for repeated limiting of transient
voltage surges, suitable rated for operating voltage
and designated as follows: Type 2 (Permanently
connected SPDs intended for installation on the
load side of the service equipment overcurrent
device); Nominal Discharge Current (In) 20kA min.
For example: FERRAZ SHAWMUT, STT2240SPG-CN,
STT2BL240SPG-CN rated 120/240Vac, (In=20kA).
Maximum distance between installation and
reduction is 5m.
4 Identification
4.1 Product description and type
designation
The thermal camera provides vision also in complete
darkness, fog, rain, smoke or for long-range distances.
It is possible to use it for a wide range of high-security
day/night surveillance systems, such as: monitoring
and rescue in the event of a fire, public safety,
along with airport, industrial and environmental
surveillance.
The stainless steel housing allows it to be installed in
environments with highly corrosive external agents,
such as marine, industrial or chemical environments.
4.2 Product markings
See the label attached to the outside of the package.