1. 2 The control of implementation of fire protection requirements during the process of design, construction and operation of buildings and structures.

11

22

The The control of implementation of fire control of implementation of fire protection requirements protection requirements during the during the process of process of design, construction and design, construction and

operation of buildings and operation of buildings and structuresstructures in in Republic of Republic of Bulgaria is performed by Bulgaria is performed by

the "Fire Safety and Rescue" the "Fire Safety and Rescue" Directorate Generale which is a Directorate Generale which is a structural unit of the Ministry of structural unit of the Ministry of

Interior.Interior.

33

The obligatory fire safety The obligatory fire safety requirements requirements for buildings and structures in Bulgariafor buildings and structures in Bulgaria

are regulated by two are regulated by two ordinancesordinances developed and issued jointly by the developed and issued jointly by the

Ministry of Regional Development Ministry of Regional Development and and Public Works Public Works and the Ministry of and the Ministry of

Interior. One Interior. One of the ordinances of the ordinances covers covers requirements requirements duringduring the design and the design and

construction of buildings construction of buildings and and structures structures and the other - and the other - duringduring the the

process of operation. process of operation.

44

Until Until 0606 June June 2010, the 2010, the fire safety fire safety requirements requirements duringduring the process of the process of

design and construction of buildings and design and construction of buildings and structures were structures were settledsettled in in an ordinancean ordinance, , issuedissued in 1987 in 1987 and and amended in 1994 amended in 1994. .

This ordinanceThis ordinance contained some obsolete contained some obsolete requirements and requirements and did not containdid not contain requirements to requirements to the the design design of of new new

projectproject solutions (atriums, etc..), a new solutions (atriums, etc..), a new type of type of structuresstructures, but also new , but also new

obligations obligations which has which has arisariseded from the from the adoption of Bulgaria into the European adoption of Bulgaria into the European

Union in 2007. Union in 2007.

55

In this respect at the end of 2006 on In this respect at the end of 2006 on the initiative of Ministry of Regional the initiative of Ministry of Regional Development and Public Works and Development and Public Works and the Ministry of Interior has been set the Ministry of Interior has been set

up a working commiup a working commissionssion. It . It consisted of 24 specialists in various consisted of 24 specialists in various technical technical fields and had to develop a fields and had to develop a

new ordinance for fire preventon new ordinance for fire preventon requirements in the process of requirements in the process of

design and construction of buildings design and construction of buildings and structures. and structures.

66

After two years After two years of working of working the the commicommissionssion prepared a draft of a prepared a draft of a

new ordinance, which was new ordinance, which was coordinated with the European coordinated with the European

Commission. On 06/05/2010 the new Commission. On 06/05/2010 the new Ordinance on constructional-Ordinance on constructional-

technical rules and standards for technical rules and standards for ensuring fire safety entered into ensuring fire safety entered into force and repealed the old one.force and repealed the old one.

77

Synchronization of technical regulations on Synchronization of technical regulations on fire safety of buildings with the EU fire safety of buildings with the EU legislation;legislation;

Introduction of the EU specifications in the Introduction of the EU specifications in the field of fire safety within the scope of Councilfield of fire safety within the scope of Council Directive 89/106/EEC of 21 December 1988 Directive 89/106/EEC of 21 December 1988 on the approximation of laws, regulations on the approximation of laws, regulations and administrative provisions of the Member and administrative provisions of the Member States relating to construction products:States relating to construction products:

The ordinance was developed in The ordinance was developed in

accordance with the following:accordance with the following:

88

Decision 2000/367/EC establishing a Decision 2000/367/EC establishing a classification system for resistance-to-fire classification system for resistance-to-fire performance for construction products, performance for construction products, amended by amended by Decision Decision 2003/6292003/629/EC /EC as as regards the inclusion of smoke and heat regards the inclusion of smoke and heat control products;control products;

Decision 2000/147/EC implementing Council Decision 2000/147/EC implementing Council Directive 89/106/EEC as regards the Directive 89/106/EEC as regards the classification of the reaction-to-fire classification of the reaction-to-fire performance of construction products, performance of construction products, amended by Decision 2003/632/ЕC and amended by Decision 2003/632/ЕC and Decision 2006/751/EC;Decision 2006/751/EC;

99

Decision 2000/553/EC and Decision Decision 2000/553/EC and Decision 2001/671/EC implementing Council 2001/671/EC implementing Council Directive 89/106/EEC as regards the Directive 89/106/EEC as regards the classification of the external fire classification of the external fire performance of roofs and roof coverings, performance of roofs and roof coverings, amended by Decision 2005/823/EC;amended by Decision 2005/823/EC;

EN 1990:2003 “Eurocode - Basis of EN 1990:2003 “Eurocode - Basis of structural design” structural design”

1010

For ensuring safety against fire For ensuring safety against fire impacts, the construction works or impacts, the construction works or parts thereof are divided into parts thereof are divided into new new

functional fire-hazard classes:functional fire-hazard classes:

F 1 - Residential buildings and buildings F 1 - Residential buildings and buildings used for provision of education, healthcare, used for provision of education, healthcare, social welfare, accommodation and other social welfare, accommodation and other services to the general public – inhabited services to the general public – inhabited permanently or temporarily (including on permanently or temporarily (including on 24-hour basis) (as a general rule, the rooms 24-hour basis) (as a general rule, the rooms of these buildings are used on 24-hour basis, of these buildings are used on 24-hour basis, their inhabitants can be people of different their inhabitants can be people of different age and physical condition, these buildings age and physical condition, these buildings typically include bedrooms).typically include bedrooms).

1111

1212

F 2 - Buildings used for provision of F 2 - Buildings used for provision of cultural and artistic services to the general cultural and artistic services to the general public, sport facilities (the main public, sport facilities (the main rooms/premises of these buildings rooms/premises of these buildings typically accommodate large numbers of typically accommodate large numbers of people for a certain period of time);people for a certain period of time);

1313

1414

F 3 - Buildings used for provision of F 3 - Buildings used for provision of services to the general public in the services to the general public in the sectors of trade, catering, transport, sectors of trade, catering, transport, communications and services; communications and services; administrative buildings (the visitors on administrative buildings (the visitors on the premises of these buildings typically the premises of these buildings typically outnumber the host staff)outnumber the host staff);;

1515

1616

F 4 - Educational establishments, research F 4 - Educational establishments, research institutions, design bureaus, institutions, design bureaus, administrative buildings of local and administrative buildings of local and central authorities (the premises of these central authorities (the premises of these buildings are used for a certain period of buildings are used for a certain period of time during the day, as a general rule they time during the day, as a general rule they are occupied by permanent groups of are occupied by permanent groups of people, who are familiar with the layout people, who are familiar with the layout and are of certain age and physical and are of certain age and physical condition);condition);

1717

1818

F 5 - Industrial and storage buildings, F 5 - Industrial and storage buildings, facilities and rooms/premises (typically facilities and rooms/premises (typically these buildings are occupied by these buildings are occupied by permanent groups of workers, including on permanent groups of workers, including on 24-hour basis)24-hour basis)..

1919

2020

The following are taken into account The following are taken into account for developing the new functional fire-for developing the new functional fire-

hazard classes:hazard classes: function of buildings and facilities;function of buildings and facilities; category of building residents - age, category of building residents - age,

physical condition, knowledge of the physical condition, knowledge of the layout of the building;layout of the building;

presence of bedrooms in the building;presence of bedrooms in the building; time period of operation of a building – time period of operation of a building –

non-stop or at certain periods of the day;non-stop or at certain periods of the day; presence of stands and areas with presence of stands and areas with

specified number of seats.specified number of seats.

2121

Depending on the risks of fire and Depending on the risks of fire and explosion associated with the substances explosion associated with the substances and products, which are used, produced or and products, which are used, produced or stored in the buildings and facilities, the stored in the buildings and facilities, the amounts of such substances and the amounts of such substances and the specificities of the technologies used, the specificities of the technologies used, the buildings and facilities belonging to buildings and facilities belonging to functional fire-hazard class F 5 are functional fire-hazard class F 5 are subdivided in new fire-hazard categories:subdivided in new fire-hazard categories:

2222

F5 А - Buildings, rooms/premises, outdoor F5 А - Buildings, rooms/premises, outdoor installations or plants related to obtaining, installations or plants related to obtaining, processing, usage, keeping and storage of: processing, usage, keeping and storage of:

Combustible gases, including liquefied Combustible gases, including liquefied combustible gases; combustible gases;

Fluids with flash point 28Fluids with flash point 28C or lower (petrol, C or lower (petrol, ligroin, acetone, toluene, pyridine, ethyl ligroin, acetone, toluene, pyridine, ethyl alcohol, dichloroethane, dioxane, alcohol, dichloroethane, dioxane, ethylbenzene, and other);ethylbenzene, and other);

Substances and products, which ignite or Substances and products, which ignite or explode by contact with water or by explode by contact with water or by interaction with oxygen from the ambient interaction with oxygen from the ambient air;air;

2323

F5 B - F5 B - Buildings, rooms/premises, outdoor Buildings, rooms/premises, outdoor installations or plants related to obtaining, installations or plants related to obtaining, processing, usage, keeping and storage of:processing, usage, keeping and storage of:

Fluids with a flash point from 28Fluids with a flash point from 28C to 55C to 55C C inclusive (kerosene, gasoil, chlorobenzene, inclusive (kerosene, gasoil, chlorobenzene, acetic acid, acetic anhydride, and other;acetic acid, acetic anhydride, and other;

Fluids, which are heated above their flash Fluids, which are heated above their flash points during manufacturing, production, points during manufacturing, production, processing, usage or storage processes;processing, usage or storage processes;

Powder materials or fibres with lower flash-Powder materials or fibres with lower flash-point concentration limits of 65 g/m3 or less. point concentration limits of 65 g/m3 or less.

2424

F5 C - Buildings, rooms/premises, outdoor F5 C - Buildings, rooms/premises, outdoor installations or plants related to obtaining, installations or plants related to obtaining, processing, usage, keeping and storage of: processing, usage, keeping and storage of:

Fluids with a flash point greater than 55Fluids with a flash point greater than 55C C (aniline, asphalt, heavy fuel oil, glycerine, (aniline, asphalt, heavy fuel oil, glycerine, ethylene glycol, formalin, oils, creosote, and ethylene glycol, formalin, oils, creosote, and other).other).

Powder materials or fibres with lower flash-Powder materials or fibres with lower flash-point concentration limits greater than point concentration limits greater than 65g/m3 (zinc powder, cellulose-lignite 65g/m3 (zinc powder, cellulose-lignite powder, acetyl cellulose powder, carbamide-powder, acetyl cellulose powder, carbamide-formaldehyde resin powder, and other).formaldehyde resin powder, and other).

Technological processes, where the Technological processes, where the products are processed at temperatures up products are processed at temperatures up to 180to 180C and which do not fall in fire-hazard C and which do not fall in fire-hazard categories A or B.categories A or B.

2525

Solid combustible substances and Solid combustible substances and products.products.

Non-combustible substances packaged in Non-combustible substances packaged in combustible packaging materials.combustible packaging materials.

Combustible substances in bulk or Combustible substances in bulk or packaged state.packaged state.

2626

F5 D - Buildings, rooms/premises, F5 D - Buildings, rooms/premises, outdoor installations or plants related outdoor installations or plants related to obtaining, processing, usage, to obtaining, processing, usage, keeping and storage of:keeping and storage of:

Non-combustible substances and materials Non-combustible substances and materials in hot or incandescent states, in which in hot or incandescent states, in which these substances or materials emit radiant these substances or materials emit radiant heat, sparks or flame; non-combustible heat, sparks or flame; non-combustible substances and materials processed at substances and materials processed at temperatures higher than 180temperatures higher than 180C, other C, other than those falling in fire-hazard categories than those falling in fire-hazard categories A or B;A or B;

Combustible liquids, gases or solid Combustible liquids, gases or solid products (powders), which are used as products (powders), which are used as fuels provided that there is a guaranteed fuels provided that there is a guaranteed source of permanent ignition.source of permanent ignition.

2727

F5 E - Buildings, rooms/premises, F5 E - Buildings, rooms/premises, outdoor installations or plants related outdoor installations or plants related to obtaining, processing, usage, to obtaining, processing, usage, keeping and storage of:keeping and storage of:

Non-combustible substances and products;Non-combustible substances and products; Combustible substances and products Combustible substances and products

used in wet technological processes.used in wet technological processes.

2828

Another Another changes changes which has been which has been set set out in the out in the new new OrdinanceOrdinance::

Construction elements, structures and Construction elements, structures and installations are classified on the basis of installations are classified on the basis of their resistance to fire performance in their resistance to fire performance in accordance with Commission Decision accordance with Commission Decision 2000/367/EC as regards the classification 2000/367/EC as regards the classification of the resistance to fire performance of of the resistance to fire performance of construction products, construction works construction products, construction works and parts thereof as amended by Decision and parts thereof as amended by Decision 2003/629/EC as regards the inclusion of 2003/629/EC as regards the inclusion of smoke and heat control products:smoke and heat control products:

2929

Load-bearing capacity (R);Load-bearing capacity (R); Integrity (Е);Integrity (Е); Insulation (I).Insulation (I).

The resistance to fire performance is rated The resistance to fire performance is rated (measured) in minutes for each load-(measured) in minutes for each load-bearing or partitioning element, using the bearing or partitioning element, using the symbols symbols R, REI, RE, EI, E:R, REI, RE, EI, E: 15, 20, 30, 45, 15, 20, 30, 45, 60, 90, 120, 180, 240 or 360.60, 90, 120, 180, 240 or 360.

3030

New terminology and requirements to New terminology and requirements to ensure the safe evacuation of people ensure the safe evacuation of people

from buildings:from buildings: The evacuation requirements are The evacuation requirements are

described using the terminology of ISO described using the terminology of ISO 8421-6 “8421-6 “Fire protection – VocabularyFire protection – Vocabulary. . Part Part 6: Evacuation and means of escape6: Evacuation and means of escape””..

New requirement: The layout of evacuation New requirement: The layout of evacuation exits are deemed uncentred, where the exits are deemed uncentred, where the angle between the escape ways leading to angle between the escape ways leading to them, starting from the most distant point them, starting from the most distant point of the room, is greater than 45of the room, is greater than 45::

3131

3232

New requirements for New requirements for width and width and number of room exits - determined number of room exits - determined with reference to the number of with reference to the number of persons in such rooms as follows:persons in such rooms as follows:

- up to 50 persons – one exit with minimum - up to 50 persons – one exit with minimum net width of 0.9 metres;net width of 0.9 metres;

- up to 100 persons – at least two exits, each - up to 100 persons – at least two exits, each with minimum net width of 0.9 metres;with minimum net width of 0.9 metres;

- up to 200 persons – at least three exits, - up to 200 persons – at least three exits, each with minimum net width of 0.9 each with minimum net width of 0.9 metres, or two exits, each with minimum metres, or two exits, each with minimum net width of 1.2 m.net width of 1.2 m.

3333

- the required aggregate width of elements - the required aggregate width of elements within the evacuation routes of premises within the evacuation routes of premises for more than 200 persons, separated for more than 200 persons, separated from the remaining rooms/premises, shall from the remaining rooms/premises, shall be determined as follows:be determined as follows:

1.for rooms/premises at semi-underground 1.for rooms/premises at semi-underground and ground floors – 0.6 m per 100 persons;and ground floors – 0.6 m per 100 persons;

2. for rooms/premises at aboveground 2. for rooms/premises at aboveground floors – 0.8 m per 100 persons;floors – 0.8 m per 100 persons;

3. for rooms/premises at underground floors 3. for rooms/premises at underground floors – 1.2 m per 100 persons.– 1.2 m per 100 persons.

3434

New requirement: New requirement: The lengths of The lengths of escape routes in the various escape routes in the various rooms/premises and buildings is rooms/premises and buildings is determined with reference to the determined with reference to the number of exits, the number of number of exits, the number of staircases and the number of final staircases and the number of final evacuation exits:evacuation exits:

3535

3636

New classification and requirements New classification and requirements for buildings with atriums:for buildings with atriums:

Fire safety Fire safety requirements for building with requirements for building with atrium depend on the atrium depend on the functional fire-hazard functional fire-hazard classclass of the building, the height of the of the building, the height of the atrium and the type of separation of the atrium and the type of separation of the atrium of the adjacent floor areaatrium of the adjacent floor area. The . The following requirements may be obligatory, following requirements may be obligatory, depending on the type of atrium:depending on the type of atrium:

automatic fire alarm system in the automatic fire alarm system in the adjacent adjacent levellevels tos to atrium and atrium and within within atrium;atrium;

automatic fire extinguishing system in the automatic fire extinguishing system in the adjacent adjacent levellevels tos to atrium; atrium;

smoke hatch on top of the atrium;smoke hatch on top of the atrium;

3737

mechanical ventilation system for mechanical ventilation system for leadlead of of smoke and heat smoke and heat out out of atriumof atrium and and buildingbuilding;;

forming forming aa smoke reservoir at the top of smoke reservoir at the top of the atrium;the atrium;

voice voice alertingalerting systems in the building; systems in the building; controlled controlled or no or no combustible load at the combustible load at the

base of the atrium. base of the atrium.

3838

3939

New classification and requirements New classification and requirements for buildings with a height over 28 for buildings with a height over 28

meters.meters. For gradation of the safety measures, works For gradation of the safety measures, works

higher than 28 metres (production, higher than 28 metres (production, residential and public) are classified in four residential and public) are classified in four groups:groups:

Group I – works with height ranging from 28 Group I – works with height ranging from 28 to 50 metres inclusive;to 50 metres inclusive;

Group II – works with height ranging from Group II – works with height ranging from 50 to 75 metres inclusive;50 to 75 metres inclusive;

Group III – works with height ranging from Group III – works with height ranging from 75 to 125 metres inclusive;75 to 125 metres inclusive;

Group IV – works higher than 125 metres.Group IV – works higher than 125 metres.

4040

Works higher than 28 metres are designed Works higher than 28 metres are designed to fire resistance grade and such that the to fire resistance grade and such that the floor area of one fire dam within floor area of one fire dam within aboveground floors is not more than 2200 aboveground floors is not more than 2200 m2.m2.

The vertical load-bearing elements of The vertical load-bearing elements of Group IV works must be executed to REI Group IV works must be executed to REI 240.240.

Other requirements about presence of fire Other requirements about presence of fire alarm systems, fire extinguishing systems, alarm systems, fire extinguishing systems, requirements for evacuation, etc.requirements for evacuation, etc.

4141

4242

New requirements for building New requirements for building ventilation systems for smoke and ventilation systems for smoke and

heat removal.heat removal. The type and presence of these systems The type and presence of these systems

depend on the size and height of the depend on the size and height of the premises and the density of the thermal premises and the density of the thermal load;load;

Smoke and heat removal in case of fire are Smoke and heat removal in case of fire are achieved by means of smoke and heat achieved by means of smoke and heat removal systems, which include facilities removal systems, which include facilities and installations for supply of fresh air and and installations for supply of fresh air and for smoke/heat removal and containment.for smoke/heat removal and containment.

4343

These systems can be implemented be These systems can be implemented be means of:means of:

smoke vents – natural systemssmoke vents – natural systems mechanical fans – forced systemsmechanical fans – forced systems

The forced suction fans of these systems The forced suction fans of these systems must be capable of withstanding a heat must be capable of withstanding a heat load of 300°С in the course of 60 min.load of 300°С in the course of 60 min.

These systems cannot be designed in These systems cannot be designed in rooms/premises which are provided with rooms/premises which are provided with automatic firefighting systems using automatic firefighting systems using gases.gases.

Other requirements;Other requirements;

4444

The new Ordinance arranged a The new Ordinance arranged a totally new chapter of the design totally new chapter of the design documentation of a construction documentation of a construction project – “Fire Safety”, which has project – “Fire Safety”, which has

to be developed by a fire engineer to be developed by a fire engineer and has to include all project and has to include all project

decisions for ensuring fire safety decisions for ensuring fire safety in the building.in the building. It consists of:It consists of:

4545

Part І. GeneralPart І. General 1. Project background1. Project background::

specify the chapters of the design specify the chapters of the design documentation of the investment project, documentation of the investment project, which have been used for elaboration of which have been used for elaboration of this chapter;this chapter;

specify the bulgarian and international specify the bulgarian and international regulatory documents and standards, regulatory documents and standards, which have been used for elaboration of which have been used for elaboration of this chapter.this chapter.

4646

2. Description of the works:2. Description of the works:

location of the works;location of the works; intended use of the works;intended use of the works; sub-sites;sub-sites; footprint area, gross floor area, height, footprint area, gross floor area, height,

adjacent areaadjacent area

4747

Part ІІ. Passive fire safety Part ІІ. Passive fire safety

measuresmeasures

1. Regulatory requirements for the 1. Regulatory requirements for the general layout of the worksgeneral layout of the works::

distances between buildings and facilities;distances between buildings and facilities; entrances from the plot to the works;entrances from the plot to the works; fire roads;fire roads; aprons for fire ladders;aprons for fire ladders; clearance from the buildings and facilities clearance from the buildings and facilities

within the works to any underground or within the works to any underground or aboveground utilities crossing the territory aboveground utilities crossing the territory of the site or passing nearby.of the site or passing nearby.

4848

2. Fire resistance grade of the works and its 2. Fire resistance grade of the works and its structural elements:structural elements:

load-bearing walls and columns;load-bearing walls and columns; inter-floor structures;inter-floor structures; façade walls and internal walls;façade walls and internal walls; walls of fire escape routes;walls of fire escape routes; staircase flights;staircase flights; shafts for installation of utilities;shafts for installation of utilities; walls of warehouses and production walls of warehouses and production

premises;premises; doors in fire barriers;doors in fire barriers; packing/sealing of utility holes in the packing/sealing of utility holes in the

barriers.barriers.

4949

3. Internal layout:3. Internal layout:

footprint area of the building;footprint area of the building; staircases – number, layout, execution, staircases – number, layout, execution,

lighting;lighting; lift shafts, separation;lift shafts, separation; rooms for electric distribution boards;rooms for electric distribution boards; storerooms and production premises;storerooms and production premises; roofs.roofs.

5050

4. Linings4. Linings::

specify the regulatory reaction-to-fire class specify the regulatory reaction-to-fire class of floor, wall and ceiling lining materials of floor, wall and ceiling lining materials depending on the type of the building and depending on the type of the building and the function of the premises;the function of the premises;

specify how the linings will be applied.specify how the linings will be applied.

5151

Part III. Active fire safety Part III. Active fire safety

measuresmeasures

1.Fire extinguishing systems (if required):1.Fire extinguishing systems (if required): areas to be protected by the firefighting system;areas to be protected by the firefighting system; type of system;type of system; main requirements laid down in the applicable main requirements laid down in the applicable

standard (except dimensioning the system);standard (except dimensioning the system); guaranteed amounts of water;guaranteed amounts of water; interoperability with other systems;interoperability with other systems; interlocks.interlocks.

5252

2.Fire alarm system (if required):2.Fire alarm system (if required):

areas to be protected by the fire alarm areas to be protected by the fire alarm system;system;

type of system;type of system; main requirements laid down in the main requirements laid down in the

applicable standard;applicable standard; location of the control station;location of the control station; interoperability with other systems;interoperability with other systems; degree of protection of the equipment;degree of protection of the equipment; interlocks.interlocks.

5353

3. Voice alert system:3. Voice alert system:

areas to be covered by the public address areas to be covered by the public address system;system;

activation of the system;activation of the system; interfaces with other systems.interfaces with other systems.

5454

4. Ventilation system:4. Ventilation system: materials used for the air ducts;materials used for the air ducts; thermal insulation of the air ducts;thermal insulation of the air ducts; intersections with fireproof barriers;intersections with fireproof barriers; branches to kitchens;branches to kitchens; air inlet and outlets;air inlet and outlets; number of air cycles maintained by the number of air cycles maintained by the

emergency ventilation system;emergency ventilation system; IР and blast-protection of the system IР and blast-protection of the system

elements;elements; earthing;earthing; zones, in which increased air pressure is zones, in which increased air pressure is

required;required; method for providing the increased air method for providing the increased air

pressure.pressure.

5555

5. Smoke and heat removal systems (if 5. Smoke and heat removal systems (if required):required):

rooms/premises and zones requiring rooms/premises and zones requiring smoke and heat evacuation services;smoke and heat evacuation services;

number of air cycles maintained by the number of air cycles maintained by the smoke and heat evacuation systems;smoke and heat evacuation systems;

number, dimensions and location of smoke number, dimensions and location of smoke and heat evacuation devices (hatches);and heat evacuation devices (hatches);

location of the suction grilles of the smoke location of the suction grilles of the smoke and heat evacuation systems;and heat evacuation systems;

identification of the smokeless zone in the identification of the smokeless zone in the rooms/premises;rooms/premises;

identification of smoke dams;identification of smoke dams;

5656

induction of fresh air in the induction of fresh air in the rooms/premises – method, location and rooms/premises – method, location and flow rate;flow rate;

requirements for the system elements;requirements for the system elements; fire resistance rating of the air ducts and fire resistance rating of the air ducts and

intersections with fire barriers;intersections with fire barriers; flaps in the air ducts – installation and flaps in the air ducts – installation and

control.control.

5757

6. Electrical installations and systems:6. Electrical installations and systems:

transformers – location, spatial separation transformers – location, spatial separation from the building;from the building;

rooms for main electric boards – rooms for main electric boards – separation, location;separation, location;

rooms/premises and zones of fire-rooms/premises and zones of fire-hazardous and explosion-hazardous class;hazardous and explosion-hazardous class;

rooms/premises and zones of normal fire rooms/premises and zones of normal fire risk;risk;

IP degree of protection and blast-IP degree of protection and blast-protection of the equipment;protection of the equipment;

separate current loops (circuits);separate current loops (circuits);

5858

cables – types and method of installation;cables – types and method of installation; location of circuit breakers within the location of circuit breakers within the

premises;premises; reaction-to-fire class of the electrical reaction-to-fire class of the electrical

boards.boards.

5959

7. Water supply:7. Water supply:

fire hydrants – specify whether or not fire hydrants – specify whether or not required, number and location;required, number and location;

water pipelines, tank, water source water pipelines, tank, water source including volume, suction, replenishment including volume, suction, replenishment of the used-up amounts of water;of the used-up amounts of water;

specify whether or not an internal specify whether or not an internal firefighting installation with firewater firefighting installation with firewater cocks is required;cocks is required;

location of the firewater cocks.location of the firewater cocks.

6060

8. Portable devices and equipment for 8. Portable devices and equipment for initial fire extinguishing:initial fire extinguishing:

number and types of firefighting number and types of firefighting equipment for each room and floor, and equipment for each room and floor, and for the building as a wholefor the building as a whole

6161

9. Evacuation lighting:9. Evacuation lighting:

specify whether or not evacuation lighting specify whether or not evacuation lighting must be installed;must be installed;

places of installation;places of installation; minimum illumination level of escape minimum illumination level of escape

routes;routes; location of illuminated evacuation signs;location of illuminated evacuation signs; power supply to the lighting systems;power supply to the lighting systems; protection of the system elements from protection of the system elements from

heatheat..

6262

10. Interoperability of all fire-safety 10. Interoperability of all fire-safety related systems:related systems:

definition of various events and definition of various events and operational planning of the systems;operational planning of the systems;

system activation sequence;system activation sequence; definition of necessary interlocks with definition of necessary interlocks with

other installations and systemsother installations and systems

6363

Part IV. EvacuationPart IV. Evacuation number and sizes of the evacuation exits number and sizes of the evacuation exits

from the building;from the building; number and sizes of escape exists from number and sizes of escape exists from

rooms;rooms; dimensions of escape routes;dimensions of escape routes; opening direction of the doors within the opening direction of the doors within the

escape route;escape route; evacuation time calculations;evacuation time calculations; identification of the doors with anti-panic identification of the doors with anti-panic

door locks;door locks; evacuation plans;evacuation plans; spatial separation of escape routes from the spatial separation of escape routes from the

other spaces in the building.other spaces in the building.

6464

Part V. Construction products and Part V. Construction products and structures for which a statement structures for which a statement regarding admissibility for regarding admissibility for construction works in Bulgaria construction works in Bulgaria (admissibility statement) issued by (admissibility statement) issued by MoI Directorate General "Fire Safety MoI Directorate General "Fire Safety and Protection of Population" is and Protection of Population" is required.required.

6565