Salicru SLC CUBE 3+ PS Mode D'emploi page 154

narrow spectrum, it means, when it is direct polarized and it is
crossed by an electric current. The colour, (wave longitude), de-
pends on the semiconductor material used in its construction,
being able to vary from the ultraviolet one, going through the
visible spectrum light, to the infrared, receiving these last ones
the denomination of IRED (Infra Red Emitting Diode).
Circuit breaker.- A circuit breaker or switch, is a device ready
•
to break the electrical current of a circuit when it overcomes
the maximum set values.
On-Line mode.- Regarding to an equipment, it is on line when
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it is connected to the system, and it is in operation, and usually
has its power supply turned on.
Inverter.- An inverter, is a circuit used to convert direct cur-
•
rent into alternating current. The function of an inverter is to
change an input voltage of direct current into a symmetrical
output voltage of alternating current, with the required magni-
tude and frequency by the user or the designer.
Rectifier.- In electronic, a rectifier is the element or circuit
•
that allows to convert the alternating current into direct cur-
rent. This is done by rectifier diodes, which can be solid state
semiconductors, vacuum or gassy valves as the mercury va-
pour. Depending on the features of the alternating current
power supply used, it is classified as single phase, when they
are fed by a single phase electrical mains, or three phase when
they are fed by the three phases. Depending on the rectifica-
tion type, they can be half wave, when only one of the current
semi-cycles is used, or full wave, where both semi-cycles are
used.
Relay.- The relay(in French relais, relief) is an electromechan-
•
ical device that works as a switch controlled by an electric
circuit where, through an electromagnet, a set of contacts are
moved and it allows to open or to close other independent
electric circuits.
Electrical enclosure.- Part of the equipment destined to
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limit the access to those parts that could have HAZARDOUS
VOLTAGES or DANGEROUS ENERGY LEVELS or to be in TNV
circuits.
Accessibility.-
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OPERATOR ACCESS AREA.
Part of the equipment that, in normal operating conditions, ap-
plies one of the following conditions:
There is access to this part without any tool.
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The access mean is allowed to the operator deliberately.
ˆ
The operator is trained to have access regardless of a tool
ˆ
is needed or not.
The "access" and "accessible" terms, unless otherwise noted,
are applied to OPERATOR ACCESS AREA as it has been stated
previously.
MAINTENANCE ACCESS AREA.
Part of the equipment, different to the OPERATOR ACCESS
AREA, which the MAINTENANCE STAFF needs access, even
with the equipment turned on.
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RESTRICTED ACCESS AREA.
Location for the equipment that the following conditions are
met:
MAINTENANCE STAFF or END-USERS properly trained
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in the reasons of the restrictions applied to both over the
location and over any caution that has to be kept in mind,
can have access only; and
The access is by means of a tool or a lock with key or other
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safety means, and it is controlled by the responsible au-
thority of the location.
MAINTENANCE STAFF.
Person with the duly technical training and the needed
ˆ
experience to be aware of both the danger that he can be
exposed to when carrying a determined task out and the
means to minimize the risks to other persons and himself.
END-USER OR OPERATOR.
Any person different from the MAINTENANCE STAFF.
ˆ
It is used the END-USER or OPERATOR term.
MAINTENANCE STAFF.
Person with the duly technical training and the needed
ˆ
experience to be aware of both the danger that he can be
exposed to when carrying a determined task out and the
means to minimize the risks to other persons and himself.
SALICRU