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ALARMARE PUBLICA: Legislatie, Tipuri de Semnale 
Acustice si Proiectarea Sistemelor 
Avertizarea populatiei in situatii de urgenta are drept scop limitarea efectelor unui dezastru 
prin salvarea de vieti omenesti si punerea la adapost a bunurilor materiale, in limita posibilului. 
Conform legii nr. 481/2004 – cu privire la protectia civila, articolul 2) normele tehnice privind instalarea 
sistemului integrat de avertizare si alarmare a populatiei si instrucţiunile privind semnalele si mesajele 
de avertizare si alarmare se elaboreaza de Inspectoratul General pentru Situaţii de Urgenta IGSU. 
Autoritatile administratiei publice centrale sau locale, după caz, trebuie sa colaboreze in permanenta 
cu IGSU. 
Textul integral privind organizarea si asigurarea instiintarii, alarmarii, precum si date privind instalarea, 
intretinerea, respectiv verificarea - repararea sistemelor acolo unde este necesar, poate fi consultat 
aici. 
TIPURI DE SEMNALE ACUSTICE 
Alarma la Dezastre (cutremure, inundatii si alte catastrofe naturale) 
3 sunete a 32 secunde fiecare, cu pauza de 12 secunde între ele; 
Pentru sirenele cu aer comprimat semnalul se compune din 3 sunete a 16 secunde fiecare, cu 
pauza de 6 secunde între ele. 
Prealarmare Aeriana 
15 sunete a 4 secunde fiecare, cu pauza de 4 secunde între ele; 
La sirenele cu aer comprimat semnalul se compune din 15 sunete a 2 secunde fiecare, cu pauza 
de 2 secunde între ele. 
Alarma Aeriana 
15 sunete a 4 secunde fiecare, cu pauza de 4 secunde între ele; 
Sirene cu aer comprimat - 15 sunete a 2 secunde fiecare, cu pauza de 2 secunde între ele. 
Incetarea Alarmei 
Un sunet continuu, de aceeaşi intensitate, cu durata de 2 minute; 
Pentru sirenele cu aer comprimat semnalul se compune dintr-un sunet continuu, de aceeaşi 
intensitate, cu durata de 1 minut. 
Pe website-ul Inspectoratului General pentru Situatii de Urgenta, in pagina Multimedia, este disponibil 
un player cu fiecare tip de semnal in parte. 
DIFERENTA SISTEM/ SIRENA 
Atat autoritatile locale, cat si presa confunda uneori cele doua notiuni. 
Sirenele reprezinta un singur echipament capabil sa produca sunete de mare intensitate, exemplu: 
110 dB/ 1 metru, 114 dB/ 1m. 
Sistemele reprezinta un ansamblu de echipamente prin intermediul carora se transmit, atat avertizari 
acustice (sunete), cat si mesaje vocale live. 
Avantajul unui astfel de sistem: in situatii de criza, oamenii intrati in panica nu fac legatura intre 
semnalul sonor auzit si semnificatia lui, cu ajutorul mesajelor vocale stiu exact care este motivul 
declansarii alarmei.
PROIECTAREA SISTEMELOR DE ALARMARE 
Sistemul de alarmare se alcatuieste dintr-un amplificator audio pe 100V, un recorder/ player utilizat la 
inregistrarea semnalelor sonore, un microfon pentru difuzarea anunturilor live, mai multe hornuri si 
unitati driver pentru hornuri (difuzoare). 
Aceasta este o configuratie standard, caracteristicile echipamentelor pot fi si trebuie sa fie diferite in 
functie de raza pe care trebuie sa o acopere sistemul. 
De exemplu: pentru o raza de acoperire de 500 m la distanta de cca. 60 dB sunt necesare aprox. 4 
hornuri, putere 60 Wati; pentru acoperirea a 2000 m - 60 dB sunt necesare cca. 16 bucati a cate 60 
Wati fiecare. 
Ulterior, luand in calcul suma puterilor hornurilor se alegea puterea amplificatorului, exemplificare: 
· 4 difuzoare x 60 Wati/ buc. = 240 Wati -> amplificator de 240Wati; 
· 8 difuzoare x 60 Wati/ buc. = 480 Wati -> amplificator de 480Wati. 
Atentie suma puterilor difuzoarelor instalate nu trebuie sa depaseasca puterea amplificatorului. In caz 
contrar riscati defectarea acestuia. 
Informatii suplimentare configurare sisteme de alarmare publica: 
AXIAL ACUSTIC SRL - Importator sirene La Sonora (Italia); girofare, rampe luminoase, faruri de 
urmarire, sirene salvare - pompieri Intav (Italia). Garantam servicii complete de: 
Bd. Sincai Gh. 2, Sector 4, Bucuresti 
Tel/ Fax +4 021- 331.78.46 
Mobil +4 0749-19.05.32 
Email: comenzi@axialacustic.ro 
info@axialacustic.ro 
tehnic@axialacustic.ro 
www.axialacustic.ro

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Proiectarea sistemelor de avertizare si alarmare civila

  • 1. ALARMARE PUBLICA: Legislatie, Tipuri de Semnale Acustice si Proiectarea Sistemelor Avertizarea populatiei in situatii de urgenta are drept scop limitarea efectelor unui dezastru prin salvarea de vieti omenesti si punerea la adapost a bunurilor materiale, in limita posibilului. Conform legii nr. 481/2004 – cu privire la protectia civila, articolul 2) normele tehnice privind instalarea sistemului integrat de avertizare si alarmare a populatiei si instrucţiunile privind semnalele si mesajele de avertizare si alarmare se elaboreaza de Inspectoratul General pentru Situaţii de Urgenta IGSU. Autoritatile administratiei publice centrale sau locale, după caz, trebuie sa colaboreze in permanenta cu IGSU. Textul integral privind organizarea si asigurarea instiintarii, alarmarii, precum si date privind instalarea, intretinerea, respectiv verificarea - repararea sistemelor acolo unde este necesar, poate fi consultat aici. TIPURI DE SEMNALE ACUSTICE Alarma la Dezastre (cutremure, inundatii si alte catastrofe naturale) 3 sunete a 32 secunde fiecare, cu pauza de 12 secunde între ele; Pentru sirenele cu aer comprimat semnalul se compune din 3 sunete a 16 secunde fiecare, cu pauza de 6 secunde între ele. Prealarmare Aeriana 15 sunete a 4 secunde fiecare, cu pauza de 4 secunde între ele; La sirenele cu aer comprimat semnalul se compune din 15 sunete a 2 secunde fiecare, cu pauza de 2 secunde între ele. Alarma Aeriana 15 sunete a 4 secunde fiecare, cu pauza de 4 secunde între ele; Sirene cu aer comprimat - 15 sunete a 2 secunde fiecare, cu pauza de 2 secunde între ele. Incetarea Alarmei Un sunet continuu, de aceeaşi intensitate, cu durata de 2 minute; Pentru sirenele cu aer comprimat semnalul se compune dintr-un sunet continuu, de aceeaşi intensitate, cu durata de 1 minut. Pe website-ul Inspectoratului General pentru Situatii de Urgenta, in pagina Multimedia, este disponibil un player cu fiecare tip de semnal in parte. DIFERENTA SISTEM/ SIRENA Atat autoritatile locale, cat si presa confunda uneori cele doua notiuni. Sirenele reprezinta un singur echipament capabil sa produca sunete de mare intensitate, exemplu: 110 dB/ 1 metru, 114 dB/ 1m. Sistemele reprezinta un ansamblu de echipamente prin intermediul carora se transmit, atat avertizari acustice (sunete), cat si mesaje vocale live. Avantajul unui astfel de sistem: in situatii de criza, oamenii intrati in panica nu fac legatura intre semnalul sonor auzit si semnificatia lui, cu ajutorul mesajelor vocale stiu exact care este motivul declansarii alarmei.
  • 2. PROIECTAREA SISTEMELOR DE ALARMARE Sistemul de alarmare se alcatuieste dintr-un amplificator audio pe 100V, un recorder/ player utilizat la inregistrarea semnalelor sonore, un microfon pentru difuzarea anunturilor live, mai multe hornuri si unitati driver pentru hornuri (difuzoare). Aceasta este o configuratie standard, caracteristicile echipamentelor pot fi si trebuie sa fie diferite in functie de raza pe care trebuie sa o acopere sistemul. De exemplu: pentru o raza de acoperire de 500 m la distanta de cca. 60 dB sunt necesare aprox. 4 hornuri, putere 60 Wati; pentru acoperirea a 2000 m - 60 dB sunt necesare cca. 16 bucati a cate 60 Wati fiecare. Ulterior, luand in calcul suma puterilor hornurilor se alegea puterea amplificatorului, exemplificare: · 4 difuzoare x 60 Wati/ buc. = 240 Wati -> amplificator de 240Wati; · 8 difuzoare x 60 Wati/ buc. = 480 Wati -> amplificator de 480Wati. Atentie suma puterilor difuzoarelor instalate nu trebuie sa depaseasca puterea amplificatorului. In caz contrar riscati defectarea acestuia. Informatii suplimentare configurare sisteme de alarmare publica: AXIAL ACUSTIC SRL - Importator sirene La Sonora (Italia); girofare, rampe luminoase, faruri de urmarire, sirene salvare - pompieri Intav (Italia). Garantam servicii complete de: Bd. Sincai Gh. 2, Sector 4, Bucuresti Tel/ Fax +4 021- 331.78.46 Mobil +4 0749-19.05.32 Email: comenzi@axialacustic.ro info@axialacustic.ro tehnic@axialacustic.ro www.axialacustic.ro