Tm Giai Phap Co Dien

mc lc

Cng trnh: 183 Nguyn Lng Bng

GII PHP THIT K

H THNG K THUT C IN

Nguyn tc thit k

Tho mn tt cc yu cu s dng, i li, lm vic, PCCC... v cc yu cu v mt k thut, m thut.

m bo tnh hi ho, ng b, thng nht gia trong v ngoi cng trnh, gia cng trnh chnh v cng trnh ph, ph hp vi cnh quan khu vc

ng dng c cc thnh tu k thut mi trong kh nng ti chnh cho php .

D thi cng xy lp, tnh kinh t cao.

Vt liu dng trong cng trnh hin i nhm em li s tin nghi, v sinh cho cng trnh cng nh lm cng trnh khng b lc hu theo thi gian.

Cc h thng phi ng b, tho mn cc yu cu khai thc, vn hnh ca cng trnh.

I. PHN IN

1. Tiu chun, quy phm

H s bn v Thi cng phn in ca cng trnh c lp da trn cc c s sau:

Cc tiu chun quy phm thit k:

Quy chun xy dng Vit nam 1997

QCXDVN 09-2005 S dng hiu qu nng lng.

Quy phm trang b in TCN18 : 21-2006

TCXD 16 : 1986 - Chiu sng nhn to trong cng trnh dn dng

TCXD 25 : 1991 : t ng dn in trong nh v cng trnh cng cng

TCXD 27 : 1991 - t thit b in trong nh v cng trnh cng cng

TCXD 333 : 2005 : Chiu sng nhn to bn ngoi cc cng cng v k thut h tng th - Tiu chun thit k.

TCXDVN 46 : 2007 - Chng st cho cc cng trnh xy dng

TCVN 4756 : 1989 - Quy phm ni t v ni khng cc thit b in.

Tiu chun IEC, BS

2. Bng ph ti tnh ton:

- Cn c mt bng b tr thit b in, s cp in cc tng, cng sut in ca cc ph ti ng lc, ta c bng tng hp cng sut in b cng trnh nh sau:

STTPh ti inTn tP tnh ton (KW)

T in EMDB

1T in tng 1DB-T120

2T in tng 2DB-T219,8








10T in tng 10DB-T1020,2

11T in tng 11DB-T1120,2

12T in tng 12DB-T1220,2

13T in tng 13DB-T1320,2

14T in tng 14DB-T1420,2

15T in tng nh hngDB-R36,9

16T in tng penthouseDB-CH19,8

17Bm nc cha chyDB-BCC150

18Bm nc sinh hotDB-BSH30

19 xe t ngDB-CAR30

20Tng hm 2DB-B214,5

21Tng hm 1DB-B111,6

22Thang myDB-TM30

23Qut tng p 1DB-QTA120


P EMDB (KW)640

Ptt TSC-1 = Kt.P = 0,8.640 (KW)512

T in MDB

1iu ha nhit tng 1DB-AC123

2iu ha nhit tng 2DB-AC227,6








10iu ha nhit tng 10 DB-AC1027,7





15iu ha nhit tng nh hng DB-ACR33,4

16T in s c EMDBEMDB512

P MDB (KW)928

Ptt TSC-2 = Kt.P = 0,9.912 (KW)835

3. Ngun cp in

3.1 Trm bin p

Tnh chn my bin p:

My bin p phi c kh nng cung cp in cho ton b cc ph ti in trong cng trnh, ng thi phi c kh nng ph hp vi vic pht trin ca cc ph ti sau ny.

Stt = kpt.kt.Ptt/cos(Trong :- kpt : h s pht trin, kpt = 1.15

- kt : h s lm vic ng thi, kt = 0.9

- cos( : h s cng sut, cos( = 0.8

Stt = 1.15 x 0,9 x 835/0,8 = 1080 kVA.

Chn 1 my bin p c cng sut my 1600 kVA cp in cho ton b cng trnh. Ti tng hm 1, b tr 1 trm bin p gm 1 my bin p 22/0,4kV c cng sut m bo cho cng sut nu trn. Ngun in trung th cho trm bin p d kin ly t li in trung th ca khu vc, im u ni v thit k thi cng trm bin p do Cng ty in lc H Ni quyt nh. (Vic thit k tnh cng sut trm cho c khu vc bn cnh, thi cng, lp t, ph duyt a trm bin p vo s dng bi ngnh in lc- Trong thuyt minh ny c tnh cht m t d kin ch u t nm c)

Ngoi ra, m bo cung cp in lin tc cho cng trnh khi ngun in li b mt bn cnh trm bin p b tr 01 my pht in Diesel d phng.

Bng ph ti u tin s dng in my pht:

STTPh ti inTn tP tnh ton (KW)

T in EMDB

1T in tng 1DB-T120









10T in tng 10DB-T1020,2

11T in tng 11DB-T1120,2

12T in tng 12DB-T1220,2

13T in tng 13DB-T1320,2

14T in tng 14DB-T1420,2

15T in tng nh hngDB-R36,9

16T in tng penthouseDB-CH19,8

17Bm nc cha chyDB-BCC150

18Bm nc sinh hotDB-BSH30

19 xe t ngDB-CAR30

20Tng hm 2DB-B214,5

21Tng hm 1DB-B111,6

22Thang myDB-TM30



P EMDB (KW)640

Ptt TSC-1 = Kt.P = 0,8.640 (KW)512

Tnh chn my pht:

Smf = kpt.kt.Ptt/cos(Trong :- kpt : h s pht trin, kpt = 1,1

- kt : h s lm vic ng thi, kt = 0,8

- cos( : h s cng sut, cos( = 0,8

Smf = 1,1 x 0,8 x 512/0,8 = 563 kVA.

Chn my 1 my pht in c cng sut 700 kVA cp in cho cc ph ti u tin ca cng trnh. My pht t ng cp ngun khi mt in li thng qua b iu khin chuyn i ngun in t ng (ATS). My pht cung cp in 100% cng sut cho ton b tng hm, khu vn phng, nh hng, cn h thng tng, thang my, bm nc cha chy, bm nc sinh hot, xe t ng, qut tng p cu thang, chiu sng hnh lang cu thangMy pht in 700KVA t ti phng my pht tng 1.3.2 Bung h th.Phng h th t ti tng 1, b tr cc t in h th, t lin lc hai thanh ci ng, t t b cng sut.

T in tng l loi t trn sn, c trang b my ngt in t ng kiu ACB, hoc MCCB, ng h o dng in v in p cho cc l cp in chnh.

Bung h th do bn in lc thit k cung cp v lp t.

3.3 Cc t phn phi in:

Ti tng 1 ca cng trnh b tr phng phn phi in bao gm cc t in tng phn phi in li v cc t cp in s c c cp ngun t sau ATS . T in l loi t trn sn, c trang b my ngt in t ng kiu ACB hoc MCCB, ng h o dng in v in p cho cc l cp in chnh.

Ti cc tng b tr cc t in tng phn phi in cho cc vn phng cho thu, nh hng, cn h thng tng v phn phi in chiu sng, cm cho khu vc cng cng.

T in tng c trang b my ngt in t ng kiu MCCB, MCB v cng t in o m in nng tiu th ca cc n v thu vn phng ti khu vc .3.4 Dy dn cung cp in:

S dng 2 h thng thanh dn Busway nhm chy dc theo hp k thut cp in cho cc tng. Cp in t thanh dn n cc t in tng s dng cc hp u in PLUG-IN ch to ng b theo thanh dn Busway. Cp in cho cc tng s dng cp Cu/XLPE/PVC v cp chng chy CVX/DSTA ( i vi h thng bm cha chy, thang my v qut iu p) i t t in tng n cc t in tng, t in thang my ...; cc cp ny c trn thang cp i dc theo hp k thut ln n tng k thut.

Li phn phi in s dng dy li ng cch in PVC i t t in tng theo mng cp dc hnh lang n cc bng in khu vc hoc c lun trong ng nha cng i ngm theo kt cu xy dng hoc trn trn gi n cng tc, cm, n v cc thit b dng in khc.

Vic u ni, r nhnh dy dn phi c thc hin bng cu ni, kp ni v phi c thc hin trong hp ni dy.

- Tnh chn cp in:

Cp dn in c chn theo iu kin pht nng v tn tht in p. Cng thc tnh dng in i vi in 3 pha ( U=380 V)

Itt = (A)

Trong : Ptt l cng sut ph ti tnh ton ( W )

Cos H s cng sut ly = 0,8

Chn cp theo cc h s hiu chnh k1, k2, k3.

Trong : k1 =1 l h s k n nh hng ca cch lp tk2 = 0,78 l h s k n nh hng ca nhiu mch k nhau (>8 mch)k3 =0,96 l h s k n nh hng ca nhit mi trng (35oC).

T Itt ta tra bng dng in lm vic lu di cho php ca cp chn tit din cho ph hp m bo iu kin dng cho php ca cp c chn ln hn Itt/(k1xk2xk3). Sau khi chn c cp phi kim tra li tn tht in p cui ngun, trng hp tn tht in p ln hn gi tr cho php ( Itt; Ics > Icsmax.

Trong In l dng nh mc ca Aptomat

Itt l dng tnh ton ca ph ti

Ics l dng ct ngn mch ca Aptomat

Icsmax l dng s c ln nht Dng s c ngn mch sau my bin p 1600KVA l:

Isc = In*100/Usc = 38,49KA (Trong vi my 1600KVA-22/0,4KV c dng nh mc In = 2309A; in p ngn mch Ucs% = 6%).My ct ACB sau my bin p chn loi ACB 3P 2500A c dng ct ngn mch l 50KA . Cc Aptomat lp ti thanh ci ca t in MDB chn loi c dng ct ngn mch l 50KA > 38,49KA, cc Aptomat lp ti thanh ci ca t in EMDB chn loi c dng ct ngn mch l 36KACc Aptomat cn li trong cng trnh ch cn chn theo dng tnh ton Itt m khng cn kim tra kh nng ct ngn mch (Dng ngn mch nh do xa ngun).Bng kt qu tnh chn cp, Aptomat :

STTPh ti inTn tP tnh ton (KW)Itt (A)ChnMCCB 3PChn cp CU/XLPE/PVC

T in MDB

1iu ha tng nhit tng 1DB-AC12343,6863A 15KA1X4CX25mm2+16mm2(E)

2iu ha tng nhit tng 2DB-AC227,652,4263A 15KA1X4CX35mm2+16mm2(E)

3iu ha tng nhit tng in hnh 3~14DB-AC3~1427,752,6163A 15KA1X4CX35mm2+16mm2(E)

4iu ha tng nhit tng nh hngDB-ACR33,463,4380A 15KA1X4CX50mm2+25mm2(E)

T in EMDB

1Tng 1DB-T12037,9863A 30KA1X4CX25mm2+16mm2(E)

2Tng 2DB-T219,837,663A 30KA1X4CX25mm2+16mm2(E)

3Tng in hnh 3~14DB-T3~1420,238,3663A 30KA1X4CX25mm2+16mm2(E)

4Tng nh hngDB-TR36,970,1100A 30KA1X4CX50mm2+25mm2(E)

5Cn h thng tngDB-CH34,8866,2480A 30KA1X4CX50mm2+25mm2(E)

6Bm nc cha chyDB-BCC150284.9150A 30KACp CVX/DSTA

4X1CX185mm2+95mm2(E)

7Bm nc sinh hotDB-BSH3056,9880A 30KA1X4CX35mm2+16mm2(E)

8 xe t ngDB-CAR3056,9880A 30KA1X4CX35mm2+16mm2(E)

9Tng hm 2DB-B214,527,5440A 30KA4X16mm2+16mm2(E)

10Tng hm 1DB-B111,622,0332A 30KA4X16mm2+16mm2(E)

11Thang myDB-TM3056,9880A 30KACp CVX/DSTA

1X4CX35mm2+16mm2(E)

12Qut tng p 1DB-QT12037,9863A 30KACp CVX/DSTA

1X4CX25mm2+16mm2(E)

13Qut tng p 2DB-QT22037,9863A 30KACp CVX/DSTA

1X4CX25mm2+16mm2(E)

3.5 o m v bo v

theo di ph ti cc tng vn phng, nh hng cc khu vc u c b tr cc ng h Ampe k xc nh dng in.

- theo di in p cc pha: t 01 Vn k 0(500V ti t h th cp chnh xc 1,5 km 01 kho chuyn mch vn k.

- Ti cc tng vn phng, nh hng b tr cc cng t o m in nng tiu th cho iu ha nhit ca tng khu vc.3.6 H thng Tip a an ton.

H thng tip a s dng cc cc thp bc ng ng knh (18mm di 2,5m ng su di mt t 0,8m mi cc ng cch nhau 4,5m, dy ni dng ng dt 25x3mm hn cc u cc vi nhau (mi hn ng chng n mn in ho). Tnh ton h thng tip a cn thit m bo tr s in tr ni t theo quy nh t gi tr Rt < 4 m: in tr ni t ca 1 cc theo cng thc:

R1 =

(*)

Trong :

= 2,5m : Chiu di cc

= 2x104 : in tr xut ca t ti khu vc cng trnh

K = 1,5 : H s tng cao i vi cc thng ng

d = 0,018m : ng knh cc tip a

t = 0,8 + = 2,05m : Chiu su chn cc tnh t mt t n im gia ca cc ni t. Thay cc s liu trn vo cng thc (*) tnh c R1 113. Vi 10 cc c ng cch nhau 4,5m, tra bng h s s dng l = 0,69 tnh c in tr ca 10 cc l R = 113/(10x0,69) = 16.in tr ni t ca dy ni tnh theo cng thc:

Rng = (**)Trong :

K = 2 l h s tng cao;

l = 50m l tng chiu di dy ni nm ngang.

b = 0,025m l b rng ca dy ni

t = 0,8m l chiu su chn dy.

Thay vo cng thc (**) tnh c Rng 15. Tra bng h s s dng ca dy nm ngang l = 0,4 tnh c in tr ca dy nm ngang l Rn = 15/0,4 = 37,5.

in tr ca h thng ni t an ton l Rt = = 11,2.Khi thi cng kt hp s dng ha cht MEG lm gim in tr ca h thng xung di 4 theo quy nh (Ha cht MEG c in tr xut rt nh khong 2dng ri trc tip xung h tip a, rnh tip a lm gim in tr ca h thng tip a xung cn t 10-50% tr s in tr khi khng c ha cht). H thng t in tng hm c b tr h thng tip a chung cho c tip a lm vic, tip a an ton.

Phn trong trm bip p do bn in lc thc hin.

Ton b h thng tip a lm vic v tip a an ton ca trm c ni trc tip vi h thng tip a chnh bng cp li ng Cu/PVC (1x70)mm2.

in tr tip a o c m bo tr s in tr tip a Rt ( 4(. Khi thi cng nu khng t phi ng thm cc b xung m bo thng s trn.

4. My pht in d phng

H thng my pht in d phng c trang b gm 1 my c cng sut 700 KVA . V t ATS chuyn i ngun t ng.

V tr lp t t my: bn cnh phng h th ti tng 1.

T my s dng ng c diesel 4 k c s dng TURBO tng p , trang b b iu tc in t .

My pht c la chn l loi kn, t ng kch t khng s dng chi than, t ng iu chnh in p .

Nhm dp tt cc rung ng ca t my gy ra trong qu trnh hot ng t my c lp t trn cc gi gim chn tng cng.

- H thng nhin liu bao gm :

01 Thng nhin liu c dung tch 1500 L my chy d phng trong 8 gi , ng ng cp v hi nhin liu : s dng ng thp en.

H thng chng n phng my:

H thng c thit k nhm gim n ca my pht in xung mc ( 75 dB khong cch 7m bn ngoi phng t my. H thng c thit k m bo hot ng bnh thng ca my cc ch vn hnh.

H thng bao gm :

+ Lp hp th m trn tng v trn phng my

+ Bnh tiu m ng x tng cng

+ Khi tiu m ca ht kh

+ Khi tiu m ca x kh

Lm mt mt

H thng my pht in c lm mt bng khng kh.

* H thng my pht in nu trn ch l nh hng, ch sn khng gian, . Sau khi Ch u t chn c nh thu v hng cung cp my pht in, nh thu cng vi nh k thut ca hng cung cp thit b s trin khai thit k chi tit theo thit b ca hng, m bo rng cc my pht in c hot ng tt theo ch tiu ca thit b v yu cu ca cng trnh.

5- H thng in chiu sng

Cc n chiu sng v h thng iu khin chiu sng s c thit k theo tiu chun chiu sng nhn to trong nh TCVN 7114-2002 v bn ngoi cng trnh xy dng dn dng: TCXDVN 333-2005, tiu chun chiu sng nhn to TCXD 16-86.

H thng n chiu sng c mc ch phc v cc tiu ch sau:

m bo chiu sng

Lm ni bt v mt kin trc

Lm to nh ni bt so vi cc kin trc xung quanh

Tit kim in nng

Chi ph vn hnh bo dng ti thiu

Cng sng phi p ng ti cao 750mm so vi nn hon thin nh sau:

Khu vn phng cho thu:400 lux

Snh, hnh lang:

100 lux

Khu vc nh hng:

300 lux

Cc phng my:

200 lux

Khu vc xe:

100 lux

Khu vc cu thang:

100 lux

Khu v sinh:

200 lux

H thng chiu sng trong nh c thit k bao gm:

Chiu sng li i, snh, khu lm vic, khu vc gara, cc phng k thut

Chiu sng s c Chiu sng cho cn h thng tng n chiu sng c in p danh nh l 230 V, n pha, tn s 50Hz. Khu vc vn phng cho thu:

Dng n m trn 3 bng hunh quang 18W lp trong hp n kch thc 600x600mm c mng tn phn quang, n dng chn lu thng, c t b cng sut m bo khng nh hn 0,85, iu khin n bng cng tc.

Khu vc snh, hnh lang, khu v sinh:

S dng cc n downlight bng compact iu khin bng cng tc. Khu vc snh chnh s dng cc n chiu sng downlight, m bo v mt k thut chiu sng theo tiu chun hin hnh.

Cu thang b: S dng n p trn lp bng Compact, iu khin bng cng tc. Khu vc tng hm:S dng n hunh quang 2x36W c cho chng bi lp ni hoc treo trn, n c chia thnh nhiu khu vc c th ng ct xen k tit kim in trong trng hp cn thit. iu khin ng ct cc dy n s dng cng tc v Contacter, cng tc t ti phng an ninh. H thng chiu sng c bo v bng cc aptomat MCB lp trong t bng in v c iu khin bng cng tc.+ iu khin ti ch bng cc cng tc n lp trn tng, cnh ca ra vo hoc nhng v tr thun li nht.+ Cng tc n khu vc snh ngn hng v snh chnh c t ti phng an ninh. Trong cc khu vc vn phng, cn h c b tr cc cm in 220V loi 3 cc phc v cho cho cc thit b vn phng c cc thit b dng in khc.

6. H thng chng st

-H thng ni t chng st trc tip bo v cho ton b to nh bao gm c ngi v thit b khng b h hng khi c st bng cng ngh thu st phng in sm (Early Streamer Emission Technology).

H thng chng st bao gm 1 b kim thu st t ti v tr cao nht ca ta nh, dy thot st, cc tip t, h tip t v hp kim tra. Thit b thu st c t ti v tr cao nht ca cng trnh vi bn knh bo v c tnh theo cng thc :Rp =

Trong :

Rp: Bn knh bo v mt phng ngang tnh t chn t kim

h: Chiu cao u thu st trn b mt c bo v

D: Chiu cao o tng thm khi ch ng pht xung theo tiu chun cp bo v da vo tiu chun NFC 17-102/1995

Tnh ton la chn s dng kim thu st loi pht tia tin o sm, c bn knh bo v R=51m (cp bo v II);

Cc cc tip t : S dng cc thp bc ng ng knh 18mm di 2,5 mt chn su 0,8m cc cc c chn cch nhau 5m. Dy dn st xung dng 02 cp ng trn c tit din 70mm2 ni xung h dy tip a. H ni t gm: 6 cc ng loi (18 di 2,5 m ng su di mt t 0,8 m bn ngoi nh.

Dy ni t dng bng ng dt 25x3mm hn cc u cc vi nhau (mi hn ng chng n mn in ho).

in tr ni t ca h thng chng st s c thit k bo m ( 10 m. Tnh ton h thng in tr ni t chng st tng t nh h thng ni t an ton. Trong trng hp nu in tr sut ca t qu ln, kh m bo c gi tr in tr nu trn th c th s dng ho cht (MEG) lm gim in tr sut ca t, t c gi tr in tr ni t theo yu cu.

i vi st lan truyn: Phn in h th c trang cc thit b chng st lan truyn 3 pha bo v s cp v th cp, m bo ngn chn st i vo h thng.

Thit b ct lc st thng minh 3 pha u ngun S cp/Th cp loi: MCD50-B/3+MCD125-B/NPE+V20C/4 ng dng cng ngh mi nht MCT (Multi Carbon Technology) & MOV (Metall Oxide Varistor) vi cng ngh a khe h phng in a tng spark-gap mc song song bo v v cng ngh MOV. Thit b ct lc st thng minh 3 pha s cp/th cp nu trn ngn nga hiu qa nhng xung in lan truyn trn ng ngun, tn nng lng st lan truyn xung t, bo v thit b khng b ph hoi do nng lng, bin v bin thin dng v p st qu ln ti im nhp ca ngun vo t in tng cho to nh. N c tc dng ct dng xung st v kh nng tn xung st ln n 275KA dng sng 10/350s phn s cp v 150KA dng sng 8/20s phn th cp. Thit b c thit k vi 2 lp bo v CMT-MOV, c kh nng chng st a xung, hiu qu bo v cao, thit k gn nh d thay th v kim tra.II- PHN IN NH

1. Tiu chun, quy phm p dng

TTTn tiu chunM hiu

1Tng i in t PABX. Yu cu k thut: TCN 68-136: 1995

2Tiu chun k thut cp thng tin: TCN 68-132: 1994

3Chng st bo v cc cng trnh vin thng. Yu cu k thutTCN 68-135: 2001

4Cng, b cp v t u cp thng tin. Yu cu k thutTCN 68-153: 1995

5ng nha dng cho tuyn cp ngm. Yu cu k thutTCN 68-144: 1995

6Phng chng nh hng ca ng dy in lc n cc h thng thng tin - Yu cu k thutTCN 68-161: 1996

7Chng qa p, qu dng bo v ng dy v thit b thng tin Yu cu k thutTCN 68-140:1995

8Thit b thng tin - Cc yu cu chung v mi trng kh huTCN 68-149:1995

9Phng chng nh hng ca ng dy in lc n cc h thng thng tin - Yu cu k thutTCN 68-161:1995

10Cht lng mng vin thngTCN 68-170:1998

11Cp thng tin kim loi dng cho mng in thoi ni ht - Yu cu k thut.

Thay th TCN 68-132:1997TCN 68-132:1998

12Giao din kt ni mng - Yu cu k thutTCN 68-172:1998

13Dch v in thoi trn mng in thoi cng cng - Tiu chun cht lng. Thay th TCN 68-176:1998TCN 68-176:2003

14Tiu chun an tonIEC 60849

2. Gii php k thut

a) H thng in thoi

H thng in thoi trong to nh c thit k v trang b bao gm 1 t cp chnh (MDF) t ti tng hm 1, cc t u dy trung gian t ti cc tng, cc hp ni dy khu vc v h thng cp in thoi xut pht t t cp chnh ni n cc hp ni dy trung gian v t hp ni dy trung gian n cc hp ni dy khu vc. Phn thit b nh tng i, cm in thoi v cc thit b u cui (my in thoi, my Fax) s do cc n v thu vn phng u t sau. V s lng, dung lng, cng sut, ca cc thit b ny ch yu ph thuc vo nhu cu s dng v mt bng b tr ni tht thc t ca tng n v lm vic trong to nh.

H thng mng in thoi bao gm: T u dy chnh t ti phng MDF tng hm 1. T u dy cc tng t ti hp k thut tng. Cc cm in thoi.v h thng cp t t u dy chnh ti cc hp u dy tng, phng; cp t hp u dy tng, phng ti cc cm in thoi.

T u dy tng c lp t trong phng k thut tng cao 1,6m (tnh n nh t)

Cc phin u dy KH23 ti t tng v MDF s dng k thut u dy vi cng ngh li ct IDC- li ct dy LSA450 m bc vi kh nng ti u dy trn 200 ln.

Cc ng cp thoi (2P-0,5)mm2 ti mi tng c tp trung v t phn phi tng, c u v phin 10 i, 20 i, 50, 100 i KH23 v c kt ni vi MDF bng cc cp trc in thoi nhiu i dy tng ng.

Cc cm in thoi lp trn tng l loi gic RJ 11, mt lp m tng, c lp t cao 0.3m so vi mt nn hon thin.

ng cp in thoi bn ngoi nh ti t u dy chnh (MDF) c ly t t u cp khu vc, phn ny khng thuc phm vi n; Trong thit k ny ch b tr sn ng ng PVC (110 i cp.

H thng cp in thoi trong cng trnh bao gm: cc cp (100Px0,5), (50Px0,5), (30Px0.5), (20Px0.5), (10Px0.5) t t u dy chnh ti cc t u dy tng i theo mng cp trong hp k thut; cp 2P-0,5 i trong ng PVC ngm tng, trn hoc i theo mng cp t t u dy tng ti cc hp u dy phng v ti cc cm in thoi.

Ton b h thng cp c u ni ti cc hp u dy thng qua cp phin u dy, khng u ni trc tip. Cp i v cp n hp u dy c u ni vo cc phin u dy, sau hai i cp ny c u ni vi nhau thng qua dy nhy, thun tin trong kim tra bo dng v chuyn i tnh nng s dng.

Ti t tng, cp si cp truyn dn c u vi phin ti hng li ct pha di.

Vic thit k v lp t ng cp ngoi vi t thnh ph vo t cp chnh khng thuc phm v ca d n ny. Trong h s ny ch b tr sn h ga bn ngoi nh v lp t sn ng ng PVC t h ga vo tng 1 ko cp ngoi vi vo t cp chnh.

H thng cp in thoi trc chnh bao gm cc cp PVC li ng (50Px0,5), (20Px0,5), (10x0,5) c nh vo thang cp theo trc ng trong hp k thut hoc theo phng ngang pha trn trn gi; cp ti cc cm in thoi s dng loi (2Px0,5) lun trong ng nha D20 chn ngm tng hoc i pha trn trn gi.

Vic u ni t bn ngoi vo n t cp chnh ca cng trnh, t u dy chnh MDF, cp trc theo chiu ng trong hp k thut, t u dy tng do nh cung cp in thoi thit k v thi cng. Phn m t trn ch ch u t hiu v h thng. Thit k ny ch ch dy t cn h ra n hp k thut mi tng.

b). H thng anten Truyn hnh

m bo cho tt c cc phng ng v phng khch ca tng cn h c tn hiu cc chng trnh ca i truyn hnh Vit nam v ca cc i truyn hnh a phng mt cch tt nht. B tr kt ni tn hiu bng ng truyn hnh cp t bn ngoi do truyn hnh cp ca thnh ph cp n.

Tn hiu TV c dn n cc thit b nh trn, chia phn vng, khch i v n cc b chia. Cc b khch i t ti cc tng. B tr cp cp n cc cm anten TV trong tng phng ng bng cp ng trc 75( thng qua cc b khuych i trung gian, b chia dy t ti cc tng.

Ton b dy dn thuc h thng tn hiu anten c lun trong ng nha cng i theo hp k thut, chn ngm tng hoc i trn trn gi.

Vic u ni t bn ngoi vo t cp chnh ca cng trnh, thit b khch i tn hiu, cp trc chnh v cc b chi tn hiu cc tng do n v cung cp truyn hnh cung cp thit k v thi cng. Thit k ny ch ch dy t cn h ra n hp k thut mi tng.

c). H thng camera

Mc tiu:

H thng camera quan st c thit k nhm mc ch m bo an ninh cho ta nh, bo v ti sn v con ngi sng trong ta nh. h thng thc hin chc nng kim sot, theo di lin tc 24/24h v qun l lu tr nhng thng tin cn thit v nhn s ra vo ta nh v cc khu vc quan trng, lu tr hnh nh theo gi, theo khu vc cn thit.Gii php thit k

H thng c thit k v b tr m bo tnh kinh t v khoa hc chc nng gim st hnh nh c hiu qu cao nht.

H thng c gim st v iu khin tp trung ti phng bo v. S dng cc camera ti bn ngoi v ti mi snh tng kim sot ton b cc khu vc cng cng. Cc camera c ni v trung tm iu khin.

Ti cc khu vc snh chnh, li ra vo ta nh b tr cc camera loi quay, ti snh, hnh lang cc tng b tr cc camera loi c nh m bo vic gim st ton b khu cng cng ca ta nh.

Cp tn hiu dng loi cp ng trc RG-11, cp iu khin dng loi cp vn xon, cp tn hiu n my tnh dng cp UTP CAT6. Cp c i trong ng lun dy t ngm tng, trn hay i ni pha trn trn gi ty theo v tr c th, ti cc v tr c mng cp, cp c i trong mng cp.

Ti trung tm iu khin s c cc b DVR v mn hnh chuyn dng 21 inch s dng gim st chia hnh. Nu mun xem mt camera no , ta n nt phng to theo camera la chn. T mn hnh ny chng ta c th thc hin cc thao tc gim st iu khin, ghi hnh theo mun. Cc camera c th hin trn mn hnh mu c ghi ch thch tn khu vc ngi iu khin c th quan st khi cn thit khi c nghi vn hoc thng bo tc thi.

Vi my tnh c kt ni vi h thng thng qua mng LAN/WAN chng ta cng c th xem v thc hin cc thao tc bng cch lc chn camera t mn hnh ho ca s hnh nh ca camera s hin ra v ta thc hin cc thao tc.

i vi cc camera loi quay c ngi iu khin s dng bn phm iu khin.

Cc camera c la chn ph hp vi tng v tr lp t khng nhng m bo tnh thm m ng thi pht huy nhng tnh nng ph hp nht vi tng iu kin lp t v s dng.

Cc camera phi c c nh mt cch chc chn m bo an ton.

Yu cu k thut:

+ H thng Camera gim st qua hnh nh c lp t gim st v theo di cc hot ng ra vo to nh nh li vo snh chnh tng 1, li vo tng hm 1, li xe chy cc tng hm, snh thang my, thang b, Gm 3 loi camera: loi ngoi tri v loi c chp v loi quay qut. Trong trng hp hot ng ngoi tri s dng loi Camera ngoi tri (Out door), c v bo v chu thi tit v c kh nng Quay/ Qut/ Phng to - thu nh (Pan/ Tilt/ Zoom).

Trong trng hp hot ng trong nh s dng loi Camera trong nh (In door), c kh nng Quay/ Qut/ Phng to thu nh cho khu vc rng.

Tt c tn hiu hnh nh ca Camera thu nhn c u a v phng an ninh b tr tng 1 thng qua cp ng trc c ri theo cc tuyn mng k thut ni b. Ti phng iu khin trung tm, cc hnh nh Camera a v c x l thng qua cc thit b trung tm, bao gm:

Thit b chia- chuyn hnh nhiu knh (Video Management System).

Thit b hnh nh (Time - Lapse Recorder).

Thit b iu khin Camera Quay/Qut/Zoom.

Cc mn hnh gim st (Monitor).

Camera Dome tc cao quay, qut

Vic iu khin quay qut c thc hin trung tm theo di qua bn iu khin. Mi camera c lp trnh mang mt a ch. Khi mun iu khin camera no th ch vic nh s camera ri thc hin quay, qut, nu trn my tnh th kch chut ri thc hin thao tc quay qut bng cch kch chut vo cc phm cha nng

Camera quay, qut c la chn loi bn cu treo trn (dome camera)

Camera bn cu c nh

c lp t trn trn hoc trn trn nhng ni ph hp c th hin trn bn v mt bng. Camera bn cu khng nhng m bo c hiu qu hot ng m cn c tnh thm m cao.

u ghi, ghp hnh v iu khin k thut s (DVR)

B tr 02 u ghi , mi u ghi DVR cho php tch hp th hin 16 knh camera, c chc nng kt ni qua ng TCP/IP, ASDN v PSTN.

Khi ch xem hnh, hnh nh ng th hin cng mt lc ca 1 n 16 camera, c th chia hinh 1, 4, 9, 16 camera. Khi ch tm kim, c th playback 16 knh camera, c th tm li theo tng on bc hoc ton cnh. Playback da trn ch ghi; lin tc, theo chuyn ng v cc tn hiu cm bin. C ng kt ni USB sao chp d liu.

d) . H thng truyn thanh cng cng

H thng truyn thanh cng cng bao gm: B thu pht tn hiu, B khuych i m thanh c b tr ti phng an ninh tng 1 .

H thng truyn thanh bo s c thit k cho cng trnh c xy dng trn c s gm cc chc nng chnh:

- Phc v hot ng iu hnh, gim st hot ng ti cc tng.

- Thng bo s tn v iu hnh hot ng s tn khi c s c xy ra.

- Pht nhc nn

H thng m thanh thng bo s c phc v cho cng trnh l h thng m thanh thng bo phc v ti to li m thanh t ngun pht, cc thng ip, sau khuch i qua h thng khuch i v x l m thanh ri truyn ti tai ngi nghe.

Ngun m thanh thng bo c th l cc ngun thng bo t cc thit b lu gi thng tin nh h thng my tnh, u bng a hay t h thng Micro.

H thng truyn thanh bo s c phc v hot ng thng bo, pht nhc nn cung cp thng tin cn thit ti tt c mi ngi ang lm vic ti cc khu vc khc nhau trong Trung tm.

Cc thit b cu thnh h thng m thanh thng bo bao gm: B thu ting / pht ting ( Micro, bn iu khin thng bo, u CD, u Cassette tape), h thng x l tn hiu m thanh (B iu khin trung tm, thit b phn vng m thanh, thit b x l cc bn tin thng bo) h thng khuch i m thanh (m li) v h thng ti to m thanh (cc loa thng bo...). Tn hiu m thanh c to ra hoc thu c nh h thng thu ting / pht ting c a n b x l m thanh hiu chnh, sau c khuch i cng sut a ra loa.

Gii php thit k

Da trn nhu cu thc t v tiu chun xy dng cc h thng m thanh, h thng cn c xy dng da trn cc tiu ch sau:

H thng m thanh thit k l h thng m thanh thng bo c lp t c nh ti cc phng chc nng, ti hnh lang, cc snh c th pht tn hiu m thanh thng bo, nhc nn ti mi v tr trong cng trnh vi cht lng m thanh tt, m thanh r v c p lc mnh.

H thng truyn thanh thng bo s c phc v cho hot ng iu hnh cc bn tin thng bo, pht nhc nn phc v cho vic thng bo, cnh bo cc s c v pht nhc nn phc v cn b cng nhn vin.

H thng thit b cu thnh h thng c thit k bao gm:

1. Tn hiu u vo : Micr, cc my pht nhc v bn tin thng bo

2. iu khin, x l tn hiu v h thng m ly cng sut

3. Tn hiu u ra : H thng loa thng bo.

Nhng thit b c la chn cho h thng m thanh c da trn nhng yu cu ca hot ng thng bo tiu chun v nhng tiu chun ca hng sn xut c cng nhn v kim chng, m bo thit b c tnh ng b cao, bn cao v tnh m khi h thng cn c nng cp v m rng.

Thng s k thut ca cc thit b chnh:

H thng m thanh PA s gm cc thit b chnh sau y:

B iu khin trung tm t ti tng 1 (phng an ninh)

Khuch i cng sut

Ma trn chuyn mch u ra

Micro thng bo cng cng km b iu khin chn vng m

u pht CD km Tuner

u thu AM/FM

Loa

Phn mn iu khin v nh tuyn h thng m thanh

Thit b c b tr nh trong cc bn v km theo. Cc phng ban, hnh lang, khu v sinh, snh cu thang, cc phng ngh u c b tr h thng loa m trn. Ti mi cn h cng c b tr 1 loa gn tng nhn c thng bo cn thit.Cc loa c b tr trn trn gi, dy tn hiu PVC 2x1cx1.5mm2 i trong ng bo h trn trn gi.

Cp audio chnh s i t trung tm k thut n mi tng theo trc k thut ca to nh. Ti mi tng s c cc b chia cp a tn hiu n cc loa.

H thng c kh nng kt ni vi my tnh gip cho vic iu khin c d dng. Ngoi ra cn c th c kt ni vi h thng bo ng, bo chy ca to nh. Khi h thng bo ng, bo chy c kch hot th b iu khin mng s t ng a ra cc thng bo do ngi s dng np vo t trc thng bo v v tr xy ra chy, hng thot him vv...

Mng cp: Cp h thng s dng cp ng.Cp Loa:

Cp loa s dng cp FR ( 2x1,5mm2). Mi vng m chy mt ng cp ring kt ni t loa n tng m cng sut. S lng v phn vng m nh trn bn v.

Lp t:

Tt c cc cp c chy trong ng bo h nh ch ra trn bn v. ng knh nh nht ca ng c s dng l 16mm. Tt c cc ng v mng cp chy trong cc trc k thut xuyn tng, trn trn gi phi gn ni. Tt c cc ng v mng cp chy trn tng trong cc phng, ni cng cng phi i chm.

Ton b h thng cp c t trong ng nha PVC hoc thang mng cp. Cu u ni t trong t u dy phn phi ti cc tng.

Loa gn trn/ tng 3/6W c b tr ch yu hnh lang, khu WC v cc phng lm vic. Cc phng khc ca mi cn h.

Loa gn ct cng sut ln 15W (Horn Speaker) c b tr trong cc tng hm (Gara).

Cc tuyn cp loa t phng k thut ti cc vng loa c i theo mng cp chung ca hng mc in nh trong hp k thut ca to nh.

Cc tuyn r nhnh cc tng phi c u ni qua hp u dy trung gian, i theo mng cp trn trn gi hnh lang i vo cc phng.

i dy loa FR(2x1.5)mm2 u vo loa c lun trong ng PVC i ngm tng hoc i trn trn gi.

Loa gn tng, treo ct c cao cch sn 2,2m.

Output

(u ra)

- Cc loi loa

- Tai nghe

Processor (Phn x l tn hiu)

m ly, thit b phn phi bn tin thng bo

Input

u vo: Micro v cc thit b th pht, lu tr bn tin thng bo.

PAGE 14Thng 10 - 2010

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