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RUSSIAN OPEN JOINT STOCK COMPANY OF ENERGY INDUSTRY AND ELECTRIFICATION

UES of RUSSIA

EXECUTIVE ORDER

25.03.98 No. 44r

Moscow

Regarding introduction of

RD 34.03.350-98

In accordance with requirements of the Fire Safety Standards of the State Fire-Fighting Service of the RF Ministry of Internal Affairs Determination of categories of rooms and buildings for explosive and fire danger (NPB 105-95):

1. Put into effect the List of rooms and buildings of energy facilities of RAO UES of Russia specifying categories of explosive and fire danger RD 34.03.350-98 developed by industry design institutes and agreed upon with State Energy Supervision of Ministry of Fuel and Energy of the Russian Federation as per the annex from April 01, 1998.

2. Deem the List of buildings and rooms of energy facilities of Department of Energy of USSR specifying categories for explosive and fire danger" No. 8002 TM-T1 approved by Department of Energy of USSR on March 22, 1989 as void.

First Deputy Chairman of the Board Britvin O.V.

Annex to the Order by RAO UES of Russia dated 25.03.98 No. 44r

Ministry of Fuel and Energy of the Russian Federation Russian Open Joint-Stock Company for Power Generation and Electrification "Unified Energy System of Russia"

LIST

of rooms and buildings of energy facilities of RAO UES of Russia specifying categories for explosive and fire danger

RD 34.03.350-98

MOSCOW 1998.

Ministry of Fuel and Energy of the Russian Federation

Russian Open Joint Stock Company of Energy Industry and Electrification UES of Russia

Agreed upon with:

Head

of State Energy Supervision of Russia

Varnavskiy B.P.

February 09, 1998.

Approved by:

Deputy Chief Executive Officer of RAO UES of Russia

Britvin O.V.

February 10, 1998.

Agreed upon with:

Head of General Inspection for Operation of Power Plants and Mains Department of RAO UES of Russia

Pauly V.K.

February 06, 1998.

Agreed upon with:

General Director of OAO Teploelectroproekt Institute

Trushin S.G.

February 03, 1998.

LIST

of rooms and buildings of energy facilities of RAO UES of Russia specifying categories for explosive and fire danger

RD 34.03.350-98

MOSCOW 1998.

The list has been prepared by OAO Teploelectroproekt Institute with the participation of OAO Energosetproekt Institute, AO Gidroproekt Institute, NPP Energoperspektiva, AO ROSEP (Selenergoproekt) based on the Fire Safety Standards of the State Fire-Fighting Service of the RF Ministry of Internal Affairs Determination of categories of rooms and buildings for explosive and fire danger (NPB 105-95).

Executive in charge (Chief Specialists):

OAO Teploelectroproekt Institute Shazhnikov S.B., OAO Energosetproekt Institute Pankrushin E.B., AO Gydroproekt Institute Egorov V.A., NPP Energoperspektiva Kotov G.A., OA ROSEP (Selenergoproekt) Kharchev V.V.

Upon putting into effect the List of rooms and buildings of energy facilities of RAO UES of Russia specifying categories of explosive and fire danger the List of buildings and rooms of energy facilities of Department of Energy of USSR specifying categories for explosive and fire danger" No. 8002 TM-t1 becomes inoperative.

Upon determination of categories of rooms and buildings for explosive and fire danger with 1,5,6 indexes the requirements of the corresponding items of notes given at the end of the list should be taken into account.

Effective date April 1, 1998.

No.

Description

of rooms

Manufacturing environment, characteristics of substances and materials in the room

Room category

Notes

1

2

3

4

5

1.

Heat power plant

1.1.

Machinery space with process basement

1 1.1.

with steam turbines

Steam pipelines, fittings and equipment with surface heating temperature of 400 and above

G

1.1.2.

with gas turbines

Combustible gases and liquids are burnt as fuel

G

1.2.

Boiler room, peak, start and standby and heating boiler room

Combustible gases, liquids and solid matters are burnt as fuel

G

1.3.

Bunker and deaeration chamber

Open from the boiler room side. Bunkers and feeders are closed. Steam pipelines with surface heating temperature of 400 and above

G

Chamber hydrocleaning is envisaged

1.4.

Bunker bay

Transportation of flammable materials (coal, peat, slate)

V2

1.5.

Gas treatment, ash collecting devices and smoke exhauster rooms

Flue gases and ahs above 100

G

2.

Hydraulic power plan including underground

2.1.

Machinery space with mounting area, generator and turbine rooms, generator shaft and turbine of vertical hydroelectric generating sets, capsules of horizontal hydroelectric generating sets

Hydroelectric generating sets with temperature up to 30; pipelines with temperature up to 50

D

2.2.

Rooms for gate-operating gears with electromechanical and hydraulic drives

Hydraulic hoists. Non-combustible materials. Oil overheating and burning sources are unavailable in the technology

D

3.

Diesel power plant

3.1.

Diesel fuel tank room without emergency ventilation

Diesel fuel storage with flash point above 28

B

The same equipped with emergency ventilation

- " -

V11

3.2.

Machinery space with process basement

Burning liquids (gases) as fuel

G

4.

Compressor station for air and other incombustible gases

Equipment for compressed air generation

D

5.

Switchboards, control rooms (CCB, MCP, UCB, MCB, MCCB, CCP, ACP, MC, SCB etc).

Low-voltage package module boards of relay protection and automatic equipment of control and adjustment Fire resistance substances

V4

6.

Rooms for excitation systems, frequency regulation, frequency converters of pump-turbines start to pumping mode

Cabinets, panels with static elements of converting equipment Fire resistance substances

V4

7.

Cable structures (tunnels, chambers, floors, galleries)

Availability of flammable materials including flame retardant (FR) cables

V15

8.

Room of stationary batteries from vented lead-acid secondary cells with arrangement of dilution ventilation.

Hydrogen evolution upon chargers operation

6

Equipment and facilities shall be explosion-proof.

9.

The same equipped with stationary emergency ventilation

"

D1

10.

Acid room for battery maintenance

Availability of incombustible substances.

D

11.

Room of stationary enclosed-type batteries from lead-acid secondary cells equipped with PP (power plants) ensuring limitation of charge voltage.

Without hydrogen evolution

D

With arrangement of dilution ventilation

12.

Electrolysis plant room

Hydrogen evolution is possible

A

13.

Room and foundation for synchronous compensator with hydrogen cooling

"

A

14.

Transformer chambers with oil-filled transformers

Combustible oils

V1

14.1.

Same with dry transformers

Incombustible substances

D

15.

Room for oil-water cooling units of transformers

Closed oil cooling system

V2

16.

Closed switchgears with gas-insulated equipment and vacuum circuit breakers

Combustible substances in small quantity

V4

17.

Closed switchgears with circuit breakers and equipment containing more than 60 kg of oil in equipment unit

Combustible oils are available

V25

18.

The same with circuit breakers and equipment containing less than 60 kg of oil in equipment unit

Combustible substances availability in small quantity

V35

19.

Room for transforming electric equipment of direct current and alternating current (with thyristor units)

Combustible substances in small quantity

V4

20.

Rooms of coal and slate conveying system:

20.1.

closed transportation galleries

Combustible substances and dust availability

V2

20.2.

filling nodes, crushing devices

Ditto

V2

20.3.

Discharge devices

Ditto

V1

20.4.

defrosting devices of convective and combined types

Ditto

V1

20.5.

gate valves on steam pipelines

Steam pipelines with temperature above 100

G

20.6.

closed coal storage areas

Combustible substances and dust availability

V1

21.

Makeup demineralizer rooms

21.1.

Makeup demineralizer filters

Water

D

21.2.

under neutralization tanks

Water up to 40

D

21.3.

pre-treatment with reagent preparation node

Lime solutions

D

21.4.

preparation of regeneration solutions with measuring tanks, pumping room for acids and alkali

Acids and alkali solutions

D

22.

Equipment corrosion protection shop rooms

22.1.

Rubber covering section

Organic solvents with flash point 25

A

22.2.

Glue preparation and cooking compartment

( ( (

A

22.3.

Shot cleaning plants

Incombustible substances

D

22.4.

Rubber storage utility rooms

Uncured rubber and other combustible materials

V1

23.

Liquid fuel and oil facilities rooms

23.1.

closed warehouses for flammable liquids

Availability of flammable liquids with flash point >61

V1

Fuel oils, oils and gas turbine fuel

23.2.

pumping stations for flammable liquids

"

V2

23.3.

closed warehouses and pumping rooms for highly inflammable liquids without emergency ventilation

highly inflammable liquids with fume flash point > 28

B

Kerosene, diesel fuel

23.4.

The same equipped with emergency ventilation

"

V11

"

23.5.

the same irrespective of ventilation

Highly inflammable liquids with fume flash point < 28

A

Gazoline, crude oil

23.6.

preparation of tank vessels with fuel oil for heating, tank vessels heating and fuel oil unloading (defroster), defroster indirect heating room

B

23.7.

oil control operating room and oil recovery

Combustible oil

V15

24.

Room for oil charging and deaeration system, oil-filled cable lines, charging equipment, charging system collectors, degassing units

Flammable fluid

V15

25.

Rooms for gas distribution points, gas booster compressor stations

Combustible gases

A

26.

Workshop rooms:

26.1.

treating and drying, painting and paint preparation

Application of solvents with flash point below 28

A

26.2

compartment of metal coating based on aluminium

Application of substances forming explosive dust air mixtures

B

26.3

jointers, polymer coating, transformer repair

Application of flammable materials and liquids

V1

26.4

vulcanization compartment, integrated cable system compartment

Combustible substances in small volume

V4

26.5

forge and welding, forge-and-press, thermal enamel coating and rebed and foundry rooms

Incombustible substances in hot, red-hot and molten state

G

26.6

plumbing, preparation, locksmiths, tools, motor truck repair, bead-blasting, electric measuring equipment, chemical control, calibration, hydraulic automation, divers equipment

Incombustible substances in cold state

D

26.7

heat insulation, electronic and electric equipment, automation equipment, heat automation and measurements, communication equipment

Combustible materials in small volume

V4

27.

Laboratory rooms:

27.1

oil, calorimetric, fuel, photographic laboratories

Combustible liquids and materials

V25

27.2

flame photometer lab

Combustible gas used as fuel.

G

27.3

water analysis, gas analysis, process control equipment, hydraulic automation

Incombustible substances in cold state

D

27.4

Electrotechnical and instrumentation

Combustible substances in small quantity

V4

27.5

Test lab with equipment containing less than 60 kg of oil in

Combustible oils are available

V3

equipment unit, the same with equipment containing 60 kg of oil and less in equipment unit

Combustible substances availability in small quantity

V4

28.

Closed warehouses and storerooms:

28.1

flammable liquids in-container and paint materials on their basis

Highly inflammable liquids with fume flash point below 28

A

Ditto with fume flash point above 28

B

28.2

chemicals storage, incombustible materials and products

Combustible packing in small volume

V4

28.3

flammable or fire resistant heat insulation materials, flammable materials and products

Combustible liquids and some materials

V2

28.4

oil paints and lacquers

Flammable liquids act as solvents upon which ignition the excess blast pressure of 5kPa is generated

B

28.5

storeroom for SPTE, inflammable materials and products, radioactive species store room

Incombustible packing

D

28.5.1

ditto

Combustible packing in small volume

V4

29.

Reagent warehouse rooms

29.1.

storage of phosphates, soda, polyacrylimide

Incombustible substances in combustible packing

V4

29.2.

lime, coagulates, salt, soda, acids and alkali unloading and storage

Incombustible substances in cold state. Incombustible packing

D

30.

Ammonic plant room:

30.1.

at Fam< 10% of total room area

Ammonia water 15-27%

D

Fam area occupied by the plant

30.2.

at Fam>10% of total room area

Ammonia water 15- 27%

A

30.3.

ammonia dilute solution room

Ammonia solution of 5% concentration and less

D

30.4.

Nitrogen cylinders

ammonia gas

A

31.

Hydrazination plant rooms

31.1.

Hydrazine dilution and storage room

hydrazine-hydrate solution of 20% concentration and above

B

31.2.

Hydrazine dilute solution room

hydrazine-hydrate solution of less than 20% concentration

D

32.

Filtering materials (sulfonated coal, activated carbon etc.) storage rooms

Combustible substance

V1

33.

Chemical wash reagent storage room

phthalic anhydride, captax, lemon acid, OP-7. Storage in combustible packing

V4

34.

Rooms for washing water of RAH, boilers, filter presses, storage of slug, cleaning of fuel oiled and oiled waters as well as pumping room

Incombustible substances in cold state

D

35.

Acetylene generator plant room

Combustible gas

A

36.

Combustible gas cylinders warehouses

Combustible gases

A

37.

Incombustible gas cylinders warehouses

Incombustible gases

D

38.

Transport rooms

38.1.

fork-lift truck parking

Non-combustible materials

D

38.2.

bulldozer parking

Combustible liquids and materials

V2

38.3.

maintenance and repair station of bulldozers

Combustible materials and liquids in small volume

V4

38.4.

tire and POL storage rooms, assemblies and engines, fuel equipment repair department

"

V1

38.5.

wash and cleaning station of bulldozers: repair of batteries, engines, assemblies, mechanical and electric technical equipment

Non-combustible materials

D

39.

Pumping stations:

39.1.

foam extinguishing, production, fire, domestic, potable and process water supply

Non-combustible substances and materials

D

39.2.

rainwater, black water and industrial effluents

Non-combustible substances and materials

D

Combustible liquids are lacking in sewage waters

39.3.

dredging, slag and other rooms of ash removal system

Non-combustible substances and materials

D

40.

Rooms for dye-line copying, electrosensitive operations

Combustible materials in small quantity

V4

41.

Technological libraries and archive

Ditto

V1

42.

Rooms for exhaust ventilation units

The exhaust ventilation unit room category shall comply with category of rooms or areas served by these units

43.

Rooms for forced ventilation units

D

44.

Elevator machine room

Combustible substances in small volume

V4

Notes:

1. The emergency ventilation is ensured by availability of standby fans with auto start at excess of maximum allowable nonexplosive concentration and power supply for I reliability category (Electrical Safety Rules) under condition of air removal devices location from the room at close proximity from the possible emergency location.

2. Classification of rooms not included in this list should be by NPB 105-95 Classification of rooms and buildings for explosive and fire danger.

3. Classification of rooms specific for other ministries and departments (rooms for motor transport, railway facilities etc.) is performed according to lists approved by the corresponding ministries and departments.

4. Rooms category is determined in each case as per the methods stated in NPB 105-95 depending on categories of rooms of the building under question and their percentage.

5. Room category may be decreased upon substantiation by the calculation depending on fire load

6. Rooms for stationary vented lead-acid batteries may be accepted as D category with application of equipment and facilities in general industrial enclosures (non-explosion proof) upon corresponding calculated substantiation.

Attachment

to the List of rooms and buildings of energy facilities of RAO UES of Russia specifying categories for explosive and fire danger''

Regarding new revision of NPB 105-95 Classification of rooms and buildings for explosive and fire danger

Main Department of State Fire-Fighting Service of Ministry of Internal Affairs of Russia as agreed with Ministry of Construction of Russia have been approved the fire safety standards NTB 105-95 Classification of rooms and buildings for explosive and fire safety instead of ONTP 24-86/Ministry of Internal Affairs of USSR and they are in force from January 1, 1996.

The principal difference of NPB 105-95 is introduction of new concept for segregation of rooms of categories V and D. To fire dangerous category V should belong rooms in which technological process are or handled the combustible materials, upon that the fire danger level is accounted with introduction of such criterion as fire load and is established by differentiated classification in accordance with which V category rooms are divided into 4 categories (V1, V2, V3, V4) depending on specific temporary fire load (in technology). Rooms where combustible materials not applied and not used (exclusively of construction materials) have D (non-fire dangerous) classification.

Upon that V1, V2 and V3 categories according to requirements of fire protection mainly comply with category V effective at the moment in construction standards and rules and V4 category is similar to current D category (with small fire load) from the practical point of view.

Considering that with change of the room classification (V and D) and introduction of new standards NPB 105-95 the development and introduction of changes to actual SNiP is required as well as follow-on revision of section 4 Classification of buildings for explosive and fire danger of NPB. The Ministry of Construction of Russia together with MDSFSS of Ministry of Internal Affairs of Russia have reviewed issues of application of specified NPB at designing and inform that till introduction of corresponding changes to construction standards and rules upon designing of production, storage and agricultural rooms and buildings the following provisions should be followed upon establishing the fire prevention measures specified in the actual standards;

to V1, V2, V3 room categories should be applied requirements established by the actual V categories. Upon that for V1 room category it is required to establish more rigid requirements (for 20%) for rated parameters of escape routes and area of such rooms (if the area is established by the standards). For V3 room category in substantiated cases these requirements are allowed (to area and escape routes) to be accepted less rigid (for 20%) in comparison with actual requirements to V category;

to V4 room category should be applied requirements established by actual SNiP for D category;

in rooms of non-fire dangerous category D (where only non-combustible substances and materials are used in technology) as per the approved NPB, there area and parameters of escape routes are not rated;

upon classification of buildings (as per section 4 of NPB 10595) V1, V2, V3 room categories are taken into account in total area of V category rooms and V4 category rooms - in area of D category rooms;

in V category room upon availability of V1 category rooms its allowable number of floors or area of fire zone shall be decreased by 25%.

(Letter of Ministry Construction of Russia dated December 25, 1995.

No.SP-601/13 and MDSFSS of Ministry of Internal Affairs of Russia dated December 18, 1995 No.20/2.2/2449)