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C IM K THUT H THNG PHNG CHY CHA CHY TECHNICAL SPECIFICATION FIRE FIGHTING SYSTEM

Content:GENERAL 2

Scope of work 2Codes and Regulations 3

SYSTEM DESCRIPTION 3

General fire fighting system 4Sprinkler system 4Hose-reel system 6External fire Hydrant 6Portable Fire Extinguishers 7

PIPEWORKS 7

General 7Pipe & fitting Material 7Valves 8Fire pumps room 16Pump Control Panel 16

PAINTING & LABELING 17

General 17Color scheme 18Writing 18

Mc lc:TNG QUAN 2

Phm vi cng vic 2

Quy phm v tiu chun 3

M T H THNG 3

Tng quan h thng cha chy 4

H thng cha chy sprinkler 4

H thng vi cha chy 6

Tr cha chy bn ngoi 6

Bnh cha chy xch tay 7

CNG TC LP T H THNG NG 7

Yu cu chung 7

Vt liu ng v ph kin 7

Van 8My bm cha chy 16T in iu khin bm 16

CNG TC SN V DN NHN 17

4.1. Tng qut 17S phi hp mu 18K hiu 18

I.GENERAL.

Fire is one of the most serious hazards to development, threatening life/ safety pants and the propertics.

All fire alarm and first aid fire fighting system will be automatic and self - monitoring so as to eliminate possible failure due to human errors. Also fire detection and fighting system shall be able to locate immediately and precisely the origin of the problems and allow the resort management and security officers to respond immediately providing the fire brigade with all necesscary means and facilities to fight the fire if the fire can not be controlled by the first aid fire fighting systems.

The fire alarm system will be fully interfaced with other services installations, including electrical, mechanical ventilation, emergency announcement, etc. Such that the entire services installations will operate as an integrated system in response to the emergency situation.

An emergency voice communication system fully intergrated and designed as part of the fire protection and alarm system will be provided to enhance safe and orderly evacuation of occupations of the building in case of emergency situations.Emergency power supply will be provided for all the fire protection and detection systems.

1.1. Scope of work.

The fire protection and alarm systems forWork will be designed

TNG QUAN.

La l mt trong nhng mi nguy him quan trng nht n d n, e da i sng tnh mng/ an ton tnh mng ca con ngi v ti sn.Tt c cc h thng bo chy v h thng cha chy cp cu t gim st v vn hnh t ng s gip cho con ngi khc phc c nhng li ng tic xy ra. Hn na, h thng d tm chy v cha chy c kh nng xc nh v tr, im pht ha mt cch tc thi chnh xc v nhn vin qun l v nhn vin bo v p ng mt cch tc thi trong mi tnh hung khn cp, hn th na n cn cung cp cho i cu ha cc phng tin cn thit v thun tin cho vic dp tt ngn la nu nh cc h thng cha chy cp cu khng c kh nng dp tt la.H thng bo chy s c lin kt hon ton vi cc h thng khc trong ta nh, bao gm h thng in, h thng thng gi, h thng thng bo khn cp, ... Do vy ton b cc h thng ni trn s hot ng nh mt h thng hp nht trong vic p ng vi tnh hung khn cp.H thng thng bo khn c hp nht hon ton v c thit k nh mt b phn ca h thng bo chy v phng chy cha chy nhm ch dn vic s tn n ni an ton trong nh trong trng hp xy ra cc tnh hung khn cp.Ngun in khn cp s c cp cho tt c cc h thng d tm chy v phng chy cha chy.

1.1. Phm vi cng vic.

Cc h thng bo chy v phng chy cha chy cho cng trnh s c thit

base on the requirements stipulated by the local authority. For this development, the scope of work are as follows:External hydrant, Fire hose-reel system. Fire sprinkler extinguishing system.Fire wall system Automatic fire detection and alarm system Emergency voice communication system (Dry contact only).Portable fire extinguisher.

1.2. Codes and Regulations.

The design and installation of the fire protection systems will comply with the following codes:

NFPA 13 installation of sprinkler system

Fire alarm system vietnam standard TCVN - 5738Fire fighting system vietnam standard TCVN 2622: 1995Fire protection system vietnam standard. General requirement on the design and installation.TCVN 5760:1993

British Standard of Steel Pipe. BS 1387 - 1985 Any other local authorities having jurisdiction over the installation

SYSTEM DESCRIPTION.

2.1. General fire fighting system.

The building includes two main parts

k da trn c s tha mn cc quy nh yu cu thit yu bi c quan c thm quyn s ti. lm sng t vn ny, phm vi cc cng vic nh sau:H thng cha chy ngoi nh, h thng cun v vi cha chy trong nh.H thng cha chy phun nc t ng. H thng cha chy vch tng.H thng d tm v bo chy t ngH thng thng bo khn cp (ch thng bo ngn gn)Bnh dp la di ng

1.2. Quy phm v tiu chun.

Vic thit k v lp t cc h thng phng chy cha chy c tham kho theo cc quy phm sau y:NFPA13 Lp t h thng u phun nc cha chy

Tiu chun bo chy Vit Nam TCVN - 5738

Tiu chun h thng cha chy Vit Nam TCVN - 2622:1995

H thng Phng chy cha chy Vit Nam, yu cu chung v thit k v lp t.

TCVN 760:1993Tiu chun ng thp ca Anh . BS 1387-1985 Bt k yu cu ca nh chc trch trong nc cho vic lp t

M T H THNG2.1. Tng quan h thng cha chy.

Phn xy dng bao gm 2 phn chnh:

Block Building: Basement, Ground Floor, Mezzannine Floor, 1st Floor, 2nd Floor, 3rd Floor, 4th Floor and Terrace Plan.

Water is supplied from the fire water tank 200m3. Besides being connected to the water supply system of industrial parks in DN100 pipe to increase the flow of water storage

Three fire pumps in pump room will suppy water for whole fire fighting system, one to two pump is in service and other is in standby.The jockey pump in pump room will supplement pressure for fire fighting system.

Every pump will be control by one individual control panel.External areas: Hose reel system will be provided for external with spacing 40m in dimeter, and the system operation pressure will 5 to 6 bars.- Hydrant system will be provided for landscape areas with spacing 100m in diameter and the system operation pressure will be 5 to 6 bars.

2.2. Sprinkler system.

Sprinkler system shall be located at all positions inside the building. Except for some rooms, such as electrical rooms, service room, chiller room. Sprinkler system nozzles include the following:

Sprinkler head consists of a category closed upright and a pendent kind. Pendent type comes with the cap ceiling.The also have a sprinkler head type and a kind of upright and pendent . Phn xy dng bao gm tng trt (Kho v Cutting), tng lng (nh xe), lu 1(Knitting & linking), lu 2 v 3(Sewing), lu 4(Sample & office) v Sn thng (Can tin v studio).Nc c cung cp t b nc cha chy 200m3. Bn cnh cn c kt ni vi h thng cha chy khu cng nghip bng ng ng DN100 tng lu lng tr nc.Ba bm trong phng bm s cung cp nc cho ton b h thng cha chy, mt n hai bm hot ng v mt bm ch ch.My bm tng p trong phng bm s b sung p lc cho h thng cha chy.

Tt c cc my bm c iu khin mt t iu khin ring.Khu vc bn ngoi: vi cha chy s c lp t vi khong cch 40m ng knh. H thng vn hnh vi p sut 5 n 6 bar.- Tr cha chy ngoi nh s c lp t vi khong cch 100m ng knh. H thng vn hnh vi p sut 5 n 6 bar.

2.2. H thng cha chy sprinkler

H thng sprinkler c b tr tt c cc v tr bn trong cng trnh. Tr mt s phng nh: phng in, phng iu khin, phng chiller. H thng sprinkler bao gm cc loi u phun sau:u sprinkler kn gm c 1 loi hng ln v1 loi hng xung. loi hng xung thng i km theo np gn trn. u sprinkler h cng c 1 loi hng ln v 1

Often used to prevent the fire water wall.

Material of constructionSprinkler head material is brass or stainless steel.

Basic parameters of the sprinklerOften used the coefficient K (2.8 ~ 11.2) Nominal release temperature (57 ~ 770C) Working pressure of maximun 175psi (12.1 bar)

loi hng xung. Thng s dng cho tng nc ngn chy.Kt cu vt liuVt liu u sprinkler l ng thau hoc thp khng r.Thng s c bn ca sprinklerH s thng s dng K (2,8~11,2) Nhit nh danh ngha (57~77oC)p sut lm vic ti a 175psi(12,1bar)

Hose-reel system

Hose reel system will be provided for the project, located at the planting areasEach hose-reel shall be equipped with one length of 20m to 25m hose complete with jet/spray/fog nozzles. Water jets must reach a distance of at least 15m at rated system pressure.

External fire Hydrant.

The fire hydrant system shall be provided for landscape areas. Accordingly, the main features of fire hydrants system shall be as follows:Fire fighting appliances. Equipment, component, hoses, and like shall be compatible with the local fire authority.Spacing of fire hydrant shall be within 150m.

Service valves shall be provided to facilitate partial shut dowm for the maintenance of the main pipe.Water shall be provided via pump from the fire water tank.Each fire hydrant shall be equipped with two lengths of 25m hose complete with jet/spray/fog nozzles. Water jets from each must reach a distances of at least 15m at the rated system pressure.Breeching inlet will be provided to be enable the replenishment water to the fire water tank by the fire fighters during emergency when the main water supply fails.

H thng vi cha chy.

H thng vi cha chy s c cung cp cho cng trnh v tr bn ngoiMi cun vi cha chy s c cun dy mn di 20m n 25m hon thin vi lng, u phun, khp ni. Nc phi c bn ra khong cch nh nht l 15m. (phi l 6m)

Tr cha chy bn ngoi

Tr cha chy s c cung cp cho khu vc bn ngai, di y l cc t tnh chnh ca tr cha chy:Dng c thit b dy mm, ...phi tng thch vi thit b ca nh chc trch.

Khong cch cc tr cha chy khng

c ln hn 150 m.Phi c van phn chia d dng bo tr v bo dng ng ng chnh.

Nc cung cp cho bm cha chy t h cha chy.

Mi tr cha chy phi c 01 cun vi di 20m hon thin vi lng, khp ni, u phun. Nc bn ra t mi u phun phi t c khong cch t nht l 15m.

Hng ch phi c cung cp c th b xung nc n h cha chy trong trng hp khn cp vo b s c.

2.5. Portable Fire Extinguishers:

Portable fire extinguishers of suitable type will be installed in the various areas as follows:Fire extinguishers will be provided where required as determined by the architects and as shown on the architectural drawing.3 kg CO2 fire extinguisher8kg ABC fire extinguisher powder

PIPEWORK

General

Pipe runs and location shows on the drawingsareapproximateandintendedto indicate the general runs and locations only. The exact runs and locations of all pipelines shall be determined at site.All pipes shall be fixed clear of one another and be so arranged as to provide easy access for Maintenance and repair. When pipe runs in parallel to one another

Or close to walls, floor slabs, beams, columns, etc..., a minimum distance of 50mm shall be maintained between the surface of pipeline.

Pipe & fitting Material

The pipe and fitting material shall conform to the following standard and suitable for the working pressure. In any case, they shall be suitable for a working pressure of not less than 14bars (200psi).

Hose reel pipe: The pipe must be black steel steel pipe conforming to BS 1387.

2.5. Bnh cha chy xch tay

Bnh cha chy sch tay vi chng loi ph hp s c lp t cc khu vc khc nhau Bnh cha chy c cung cp v ch ra trn bn v kin trc.

Bnh cha chy CO2 loi 3kg

Bnh cha chy bt ABC loi 8kg

CNG TC LP T H THNG

NGYu cu chung.

ng i v v tr ca ng th hin trong bn v l tng i v c mc ch l ch ra cc ng i v v tr chung m thi. ng i v v tr chnh xc ca cc ng ng phi c xc nh ti cng trng.

Tt c ng phi lp cch nhau vi cc ng khc nhau v sp xp sao cho d dng bo tr, bo dng v sa cha. Khi ng lp song song vi ng khc hoc gn tng, sn, dm, ct, ... Khong cch ti thiu 20mm c duy tr gia hai b mt ca ng.

Vt liu ng v ph kin

Vt liu ng v ph kin phi ph hp vi cc tiu chun di y v ph hp vi p sut lm vic trong bt k trng hp no, chng phi ph hp cho p lc lm vic khng nh hn 14kg/cm.

ng h thng cha chy: ng h thng cha chy phi l ng m km ph

3.2.2. Hydrant pipe: The pipe must be galvanized mild steel pipe conforming to BS 1387.

Valves

General

All valves used shall be of bronze, cast iron or cast steel construction and of approved manufacture conforming for the working pressure encountered. All valve of 50mm diameter or less than be of screw connections. Valves of 65mm diameters and above shall be of flanges connections unless otherwise specified. For isolation purpose, gate valves shall be used. Check valve used shall be of swing or lift with spring return type.

Installation valves shall consist of a main stop valve, an alarm valve and a water motor alarm and gong, conforming to the.

The main stop valve shall be secured open by a padlocked strap. A location plate with approved lettering shall be provided.

The alarm valve must be to Vietnam Standard and installed

hp vi tiu chun BS 1387.3.2.2. ng h thng hng cha chy: ng phi l ng km ph hp vi tiu chun BS 1387.

Van

Yu cu chung:

Tt c cc van s dng phi l van c kt cu bng ng, gang hoch thp c vi nh sn xut c chp nhn ph hp vi p lc lm vic yu cu. Tt c van c ng knh nh hn hoc bng 50mm c ni ren, van ln hn hoc bng 65 mm phi ni mt bch tr trng hp c qui nh khc. Vi mc ch ng ngt, cc van ca s c s dng i tr. nhng khu vc yu cu iu chnh tit lu, van cu vi ca bng thp khng g s c s dng loi bn l hoc loi l xo.

Van iu khin: van iu khin bao gm mt van ca chnh, mt van bo ng v mt b chung nc ph hp vi tiu chun TCVN .

Van ca chnh: van ca chnh c bo v bng y v kha phi lp t trn van bin bo nh v vi loi ch c chp thun.

Van bo ng: Van bo ng phi ph hp vi tiu chun VN v lp t

immediately above the main stop valve. The alarm valve shall have all necessary connections tp pressure gauges, water motor alarm , combined drain and test valves, etc.. ngay pha trn van ca chnh. Van phi c nhng im ni cn thit cho ng h p lc, chung nc bao gm c van x kim tra.

Check valve shall be of the spring-loaded non slamming type. These shall be female screwed connection for size up to and including 50mm diameter. For size 100mm diameter and above, they shall be of the flanged cast iron type with bronze disc. For sizes 65 to 80mm diameter, they shall be of flanged cast bronze or cast bronze body type.

The contractor is required to select these valves in relation to the velocity of the water in the pipe. In all cases, the valve is required to operate silently on the reversal of water flow.

Globe valve shall be supplied and fitted to proper balancing and water flow control. They shall be of the globe pattern, screwed gunmetal for size up to 50mm diameter. Valve 100mm diameter and above shall be of flanged cast bronze or cast bronze body type.

Strainers: Strainers shall be the Y type complete with removable model metal

strainers screen not greater than 56mesh.Strainers up to and including 80mm diameter shall be cast iron type and flanged.Gunmetal drain cocks shall be provided necessary to ensure that all sections of the pipe work and plant can be effectively follows: tanks, plant and pipes above 150mm diameter not less than 25mm diameter. Pipe 80mm to 125mm diameter - 15mm, pipes up to 65mm diameter -

Van mt chiu: van mt chiu l loi c l xo chng di. Chng lm bng kim loi c ren trong lp t cho c ng knh nh hn hoc bng 50mm. Cho c ng knh ng ln hn hoc bng 100mm chng l loi gang mt bch vi a van bng ng. Cho c van c ng knh 65mm v 80mm, chng l loi mt bch thn van bng ng hoc gang.

n v thi cng: n v thi cng phi chn van ph hp vi vn tc ca nc trong ng. Trong mi trng hp, van phi hot ng m du khi o lon dng chy ca nc.

Van cu: Van cu phi c cung cp v lp t cn bng v iu khin lu lng nc. Chng phi l dng cu, ni ren cho c van c ng knh nh hn hoc bng 50mm. Van c ng knh c 65mm n 80mm phi l loi ni mt bch, thn bng ng hoc bng gang.

Lc: lc l loi gm vi li lc c th tho ri, c mt li khng ln hn

56. Lc c ng knh nh hn hocbng 80mm l loi gang ni mt bch.

Van x p: van x p an ton khi lp ln trn ng ng phi l loi l xo kim loi ch to ng vi im ni ra 150mm pha trn mt sn. Van x c ch cn thit m bo rng tt c on ng v phng my c th x b nc mt cch hiu qu. C

6mm. Drain cocks of 15mm diameter and above shall be installed with hose unions for draining down.

Pipe joining (valves & equipments): for all pipe connection to valves, strainers and equipment flanged, or screwed joint shall be used. All screwed joint shall be made with Teflon or equal approved PTFE thread sealing tape; hemp or similar organic substances shall be permitted.Galvanized steel pipe work : All galvanized steel pipe work joint up to and including 50mm diameter shall be made by means of screwed connections. Pipe 65mm diameter and above shall be joint by means of flanges or screwed or victaulic connections. Welding of galvanized steel pipe work shall not be permitted unless approved by the Project Manager / M&E Consultant in writing. In all cases, where pipes are joined to flanged equipment, the appropriate mating flanges shall be used.

ca van x phi m bo nh sau: van x b nc, phng my v ng ng c ng knh ln hn 150mm, van c ng knh khng nh hn 25mm. ng ng c ng knh t 80mm n 125mm, van x c ng knh 15mm. ng ng c ng knh t 65mm v nh hn, van x c ng knh 6mm. Van x c ng knh 15mm v ln hn phi lp vi ng mn thun tin cho vic x b.Ni ng ( van v thit b): Vi tt c cc mi ni ng n van, Y-lc v thit b phi s dng mt bch hay ni ren. Tt c cc ni ren: dy ay hoc cht hu c tng t khng c php s dng.

Lp t ng trng km : tt c cc mi ni cho ng trng km c ng knh nh hn hoc bng 50mm s ni ren. Tt c ng c ng knh ln hn hoch bng 65mm s ni bng mt bch hoc ren. Ni hn cho lp t ng trng km s khng c php tr khi c chp thun bng vn bn ca gim c d n hay t vn. Trong mi trng hp, nhng ch ng c ni vo thit b, mt bch ph hp phi c s dng.

Pipe joint: all pipe jointing shall be carried out in a proper workman like manner. Steel piping joints in steel pipes made by welding shall be to the approval of the M&E Con sultant. Pipe ends shall be prepared by machining, grinding, or machine gas cutting or hand flame cutting with subsequent grinding. For pipe which are intended to be in axial alignment, the plane of the end shall be the square with the axis of the pipe. All welding shall be done by approval competent welders. Where welds fail to comply with the requirement of the M&E consultant / Project manager, the faulty welds shall be cut out and rectified.Where necessary, protection from weather shall be provided bys the Contractor to enable welding operation to be performed properly. Flanged where weld joint are impractical or where require for erection purposes or at connection to fitting on steel pipe 80mm diameter or over or at all flanged valves, flanged shall be fitted and welded on to pipe to approval. Jointing flanges shall be truly parallel to each other so that bolts are used only to make joint tight, and not to pull up flanges not true alignment. All bolts and nuts shall be of bright steel of approval manufacture. Flanges shall conform to BS . Taylor metallic corrugated jointing rings with approval jointing paints or other material shall be used between flanges.

Union where welded joint are impracticalor at connections to fitting on pipe under 50mm, approval steel socket steam union may be used.Steel pipe fitting: Fittings Galvanized steel or black steel pipe fittings are acceptable.

Mi ni ng: Tt c cc mi ni phi thc hin theo ng cch v kho lo. u ng phi c sa son bng my, my mi hoc ct hn hi sau lm sch bng my mi. Vi ng m d nh lp ng trc, mt ct u ng phi vung gc vi trc ca ng. Tt c cc mi hn phi c thc hin bi th hn gii. nhng ch mi hn khng p ng c yu cu ca t vn c in v gim c d n, cc mi hn hng phi ct b v sa cha li nhng ch cn thit, n v thi cng phi cung cp bin php bo v chng li thi tit cho php cng vic hn tin hnh mt cch thun thc v chnh xc. Ni mt bch: nhng ch khng th thc hin c vic hn hoc yu cu cho vic lp dng hoc ti nhng im ni vi ph kin trn ng thp c ng knh 80mm hoc ln hn, ti tt c cc mt bch ca van, mt bch s c lp t v hn vo ng. Cc mi ni mt bch phi song song vi nhau cho php cc bu lng sit cht v khng ko dt mt bch v khng thng hng. Tt c bu lng v cu lm bng thp. Mt bch phi ph hp vi tiu chun BS. Cc vng giong cng vi sn tng ng hoc vt liu khc c chp thun s lp t gia cc mt bch.

Ni zc co: nhng ni m khng th hn c hoc ti nhng ch ni n ph kin trn ng ng c ng knh nh hn 50mm, cho php s dng zc co.Ph kin ng thp: Ph kin thp trng km hoc ph kin ng thp en u c chp nhn.

Elbow and tee: on all changes of directions, long radius elbows and sweep or pitcher tees shall be used. Short elbow shall not be used otherwise approved by M&E Consultant. Bends offsets and other pipe fitting will be rejected. Short fill - in sections of piping less than 150mm long shall not be welded onto any pipe run unless otherwise approved by M&E Consultant. Reduction in the diameter for through flows pipes shall be made by means of reducing sockets for vertical pipe only; for horizontal connection to pump suction, eccentric reducing sockets shall be used.

Ct v t: Ct c bn knh cong ln v t c lp t cho s chuyn hng ca ng. Ct c bn knh nh khng c php s dng tr khi c s chp thun ca t vn. Khng c s dng ph kin bng phng php khai trin lp ghp bng mu nh to thnh ct. Nhng on ng ngn hn 150mm khng c php hn trc tip ln ng tr khi c t vn chp thun. Gim ng knh ng phi dng cn thu ng tm cho ng ng v cn thu lch tm cho ng ngang.

Testing of pipe: all pipe works shall be hydrostatic tested in convenient section as the work proceeds. The M&E Consultant or his representative shall be notified 3 workings day in advance of the intended hydrostatic test on the piping network. The decision on what constitute a convenient section of the pipe work to be tested shall be at the discretion of the M&E Consultant and his decision shall be final. The hydrostatic pressure test to be applied over the pipe work shall be held for 24 hours. In the event of any pressure drop during the test periods, the leaks shall be found, make good and the line is re- tested. Particular care shall be taken to exclude all air from the system during test.

Excavation works: all excavation works shall be carried out as nearly as possible to exact dimensions and shape so that the minimum of filling in afterwards will be necessary. Water shall be removed by pumping and all temporary expedients required for the dealing with water shall be the Contractor's liability. Excavation shall be carried out in the dry. A mechanical excavator shall be employed by the Contractor only if the sub-soil is suitable and with the approval of the Construction Consultant. The Contractor must excavate the pipe trench in lengths which is subject to the Construction Consulant, approval.

Th nghim ng: Tt c ng lp t phi c th p lc tnh. T vn c in hoc ngi i din phi c thng bo trc 3 ngy v d nh th p lc tnh cho h thng ng ng. Kt qu th nghim cui cng l do t vn quyt nh. Th p lc tnh cho ton b ng ng lp t, gi trong 24h. Trong trng hp c suy gim p lc qu 5% phi tm ra ch r r sa v th li. c bit lu l phi x ht kh trong ng ng trc khi th.

Cng vic o t: Tt c cc cng vic o phi thc hin cng gn kch thc ca ng ng cng tt v chnh gim thiu lng lp li sau khi lp t. Nc phi c bm sch. o t phi c thc hin trong iu kin kho ro. My o ch c php s dng khi c php bi t vn xy dng khi nn t ph hp. n v thi cng phi o mng lp t ng theo chiu di m c s ng ca t vn xy dng.

Sand bed: Sand bed shall be approved clean unwashed sand, compacted to the thickness indicated on the drawing, and spread and level as directed.Back-filling: back-filling shall be completed as soon as practicable, after all pipes have been laid and satisfactorily tested. All back- filling shall be well rammed and compacted., The first 450mm of backfill over any laid pipe is to be hand rammed, care being taken to compact all fill at the side of pipe without disturbing its line or gradient. The remaining back-filling will be continued in layers of 150mm thickness and each layer will be rammed by mechanical rammer and any later subsidence in the filed trench will be make up to existing round level. Where trenches have passed through turfed areas, the surface will be returned only after subsidence of the fill has been made up. Payment for excavation will not be make until back-filling is satisfactorily completed in the first instance. Where the excavation crosses roads and road verges, the backfill shall be carefully placed and compact as

m ct: m ct c chp thun phi sch, m nn n chiu dy c ch ra trong bn v v tri khp v c cao nh yu cu.

Lp: vic lp phi hon thnh cng sm cng tt sau khi ton b cc ng c lp v th nghim t yu cu. Ton b phn lp li phi c m nn lp lp u tin l 200mm che ph ton b nhng ng lp t c m nn bng tay, lu khi m nn ti hai bn khng c gy nh hng n ng ng v dc ca ng. Nhng phn lp cn li phi tip tc vi lp c chiu dy 150mm v mi mt lp s c m nn bng my v bt k s st nn no ny s c in y n cao hin hu. nhng ni m mng chy qua bi c th b mt ch c tr li sau khi in y lp st. Vic thanh ton cho cng tc o t s c chi tr cho n khi hon thnh hon ton nh hin trng ban u. nhng ni o t bng qua ng v ra ng c lp li phi thc hin v m nn cn thn nh yu

specified aboveand the road surface reinstated to its former state and level. Any subsequent subsident of the backfill, up to the end of the Maintenance period, casing subsidence of the road surface will be later made up by approved materials. Such reinstatements are to be included in the Contractor's Tender Price for prices.Where there is crossing of roadway, the Contractor shall be responsible for liaison with the pertinent Authorities and for carrying out work in a manner approved by the Project Manager to ensure safety and proper working.

Fire pumps room

Fire Station three pumps water main pump uses centrifugal pump in which a horizontal axis using an electric motor and a booster pump vertical pump from underground water tank 200m3 for the entire system .Specifications are as follows.+3 main pump Flow Q = 130m3 / h90m pressure head necessary Liquid temperature (-25 ~ +1400 C)+ 1 booster pumpFlow Q = 5m3 / h90m pressure head necessary Liquid temperature (-25 ~ +1400 C) Material injected as follows: Pumping wing copper or Stainless SteelReel of cast iron pumps

Pump Control Panel

Pump Control Panel is a powder coated steel cu k thut trn, v b mt ng phi c phc hi nh hin trng cao ban u. Bt k s ln tip theo ca vic lp li cho n tn khi kt thc thi hn bo hnh. Gy nn s ln ca mt ng s c phc hi bng vt liu ph duyt. Nhng cng vic phc hi li phi c bao gm trong gi u thu ca n v thi cng. nhng ch i qua ng xe chy, n v thi cng phi chu trch nhim lin lc vi c quan hu trch v tin hnh cng vic theo cch thc m c gim c d n chp thun m bo an ton v thch hp.

My bm cha chy.

Trm bm cp nc cha chy 3 bm chnh s dng bm ly tm trc ngang dng ng c in, 1 s dng ng c Diesel v 1 bm tng p trc ng bm t b nc ngm 200m3 cp cho ton b h thng.Thng s k thut nh sau.+ 3 bm chnhLu lng Q=130m3/h Ct p cn thit 100mNhit cht lng (-25 ~+1400C)+ 1 bm tng p Lu lng Q= 10m3/h Ct p cn thit 100mNhit cht lng (-25 ~+1400C)Vt liu bm nh sau: Cnh bm bng ng hoac thp khng rGung bm gang.

T in iu khin bm

T in iu khin bm l loi t bng thp

cabinets, cabinet shell thickness is 1mm minimum. The steel plinth has the minimum height 200mm (if the cabinet on the floor).

The cabinet shall be equipped with the following minimum equipment: Lamps indicate Error status, running of each pump, Automatic/Manual operation mode switch for each pump, Run/Stop buttons for each pump; pilot lights for three- phase electricity, meters displaying the current and voltage inputs; power consumption meter over time (kWh meter) and associated switchgear.- Electrical cables get in and out the cabinet from ontop.

PAINTING & ABELING

4.1. General

Unless otherwise specified, all exposed surfaces including trucking and cable tray: duework, equipment, etc, shall be cleaned and painted. All ferrous metal surfaces without protective finishes shall be painted exxcept surfaces of moving parts which shall be cleaned and painted. All ferous metal surfaces without protective finishes shall be painted except surfaces of moving parts which shall be thoroughly oiled and greased as required. Non -ferrous surfaces may be left unpainted unless called for in this specification or required by the M&E consultants for the purpose of color- coding and identification. All bare surfaces requiring painting shall first be given a priming coat followed by an undercoat one to two finisshing coats. sn tnh in, v t c chiu dy ti thiu l 1mm. Khung thp t (plinth) c chiu cao ti thiu l 200mm (nu l t t trn sn).T in phi c trang b ti thiu cc thit b sau: n bo trng thi li, chy ca tng bm; cng tc chuyn kiu (mode) hot ng t ng/bng tay cho tng bm; nt nhn chy/dng cho tng bm; n bo ngun in 3 pha vo; ng h hin th dng in v in p u vo; ng h o cng sut tiu th theo thi gian (kWh meter) v cc thit b ng ngt i km.Cp vo v ra t in t bn trn

IV. CNG TC SN V DN NHN4.1. Tng qut

Tr khi c quy nh khc, tt c nhng b mt l ra bao gm mng in, ng nc, thit b, ... S lau sch v sn. Tt c nhng b mt st khng c lp bo v s sn tr nhng b mt gi , tr cc b mt ca cc phn chuyn ng c yu cu bi h s k thut ny hay t vn c in cho m mu sn v nhn dng. Tt c nhng b mt th yu cu sn 1 lp sn lt v hon thnh l 1 n 2 lp sn.

4.2. Color scheme

All services shall be painted in accordance with the Viet Nam standard: S phi hp mu

Tt c h thng s sn theo tiu chun Vit Nam.Writing

All major item of equipment shall be indentified with approved names and / or numbers of suitable size proportion to the size of the respective items. All stop valves and control 4.3. K hiu

Tt c nhng hng mc quan trng ca thit b s c nhn dng vi tn gi hay s chp thun cn xng vi c ch ring tng hng mc.,

valves the functions of which a non-corroding metal or laminated plastic identification tag. The tag shall indicate the service, and the area or items which the valves serves. Tt c nhng van ng, ngt v van iu khin m khng r rng s cung cp mt tm th bng nha cn mng hay mt tm kim loi khng b n mn. Th s ch dn cho vic phc v vng hoc nhng hng mc no m van cp ti.