Regada SP 1-Ex, Инструкции по установке, обслуживанию и техническому обслуживанию

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4 SP 1-Ex
Graphic symbols on electric actuator
The graphic symbols used on electric actuator substitute the text messages. Some of them are in accordance
with EN ISO 7010, ISO 7000 and IEC 60417 within valid edition.
Dangerous voltage (EN ISO 7010-W012)
Stroke of the electric
Switching-off thrust
Manual control (0096 ISO 7000)
Protection terminal (5019 IEC 60417)
1.5 Terminology
Potentially explosive environment - an environment where explosive atmosphere can occur.
Explosive gas atmosphere - a mixture of flammable substances (in form of gases, vapors or mist)
with air under atmospheric conditions, which upon initiation enables the propagation of the combustion
in unconsumed mixture.
Maximum surface temperature - maximum temperature occurring during operation in most adverse
conditions (but within accepted tolerance limits) at any part of the surface of the electric device,
that could result in ignition of the surrounding atmosphere.
Enclosure - all walls, doors, covers, cable glands, shafts, rods, draw bars, etc., that contribute to the
level of protection against explosion or to the level of protection (IP) of the electric device.
Flameproof enclosure "d " - type of protection wherein the parts capable of igniting an explosive
atmosphere are located within the enclosure, in case of explosion of an explosive mixture within the
enclosure, such enclosure will withstand the pressure of the explosion and prevent the propagation of
explosion to the surrounding atmosphere.
Increased safety “e” - type of protection applied to electrical apparatus in which additional measures
are applied so as to give increased security against the possibility of excessive temperatures and of
the occurrence of arcs and sparks in normal service or under specified abnormal conditions.
Dust ignition protection by enclosure “t” – type of protection for explosive dust atmospheres where
electrical equipment is provided with an enclosure providing dust ingress protection and a means to
limit surface temperatures.
Combustible dust - finely divided solid particles, 500
μ
m or less in nominal size, which may
be suspended in air, may settle out of the atmosphere under their own weight, may burn or glow in air,
and may form explosive mixtures with air at atmospheric pressure and normal temperatures´.
Conductive dust - combustible dust with electrical resistivity equal to or less than 10
3 Ω
· m.
Combustible flyings - solid particles, including fibres, greater than 500
μ
m in nominal size which may
be suspended in air and could settle out of the atmosphere under their own weight.
1.6 Instructions for stuff training
Requirements for specialized skills of persons performing assembly, operation and maintenance
Electric connection can be performed only by an acquainted person, i.e. an electrical engineer with
professional education of electrical engineering at an apprentice school or a technical school
(secondary, complete secondary or university education) and whose qualification was verified by an
educational facility authorised to verify professional qualification.
Service can be performed only by workers professionally qualified and trained by the producer or
contracted service centre!
!
!