Diplomová práce řeší problematiku ochrany slaboproudých zařízení před přepětím. Úvodní část obsahuje analýzu právních a technických předpisů. Tato analýza je doplněna rozborem zdrojů přepětí. Další část předloţené diplomové práce řeší systémy ochrany před přepětím. Stěţejní výstup představuje návrh ochranného systému k omezení přepětí. V závěru jsou uvedeny informace o vývojových trendech v oblasti ochrany před přepětím.
The output object that all calculated risks are
lower than the set limit values and, therefore, the object sufficiently protected against
power surges caused lightning strike. was chosen basic rod.r. Design protection carried out according to
recommendations the LPS system design flowchart according ČSN 62305-3 ed.183/2006Sb. first, the analysis legal requirements and law 22/1997 Coll., territorial planning and
building regulations very important. These physical principles are used for various purposes the over-voltage
limitation.
In the characteristics building dimensions the buildings, the material shell the
building and the roof, engineering networks entering the object.
The proposal for the protection low voltage equipment against over voltage was chosen
to model two-storey office building.03 from OEZ s.
External lightning protection system made interception system, system of
downspouts and grounding system., technical requirements for buildings and states where necessary to
set protection against lightning and surges. The law No. These
distributions are used for the power supply connector circuits, equipment, instrumentation
and control, EPS and ELECTRONIC SECURITY. The object classed LPS III. Interception lattice system created the roof. The characteristics further
identifies electrical switchboards, which carry out power lines the building. Although Czech law
legislation standards are not binding, the law made mandatory. The calculation was made away from
the inner lightning rod system metal components and electrical wiring. the area technical requirements, was
necessary get acquainted with Czech technical standards.
After the analysis legislative and technical requirements, the technical means limit
effects the surge were made.
. technical
requirements for products was made. The implementation the decree specifies
268/2009Sb.o. These technical requirements work different physical
principles. Letohrad was used evaluate risk and establish necessary
levels lighting protection computer programme. When entering data, the
characteristic the building was used. 2.
Prozik 1.UTB Zlíně, Fakulta aplikované informatiky, 2013 80
ZÁVĚR ANGLIČTINĚ
Proposing security low voltage equipment against over voltage was preceded by
familiarization with legal and technical requirements for equipment protection against over
voltage. From
the architectonical point view, the number leads was enlarged comparision with the
calculation four leads
