T I U C H U N Q U C G I A TCVN

TCVN 8071:2009

CNG TRNH VIN THNG QUY TC THC HNH CHNG ST V TIP T

Telecommunication plant Code of practice for lightning protection and earthing

H NI - 2009

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TCVN 8071:2009

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Mc lc Trang

Li ni u 5

1 Phm vi p dng 6

2 Ti liu vin dn 6

3 Thut ng v nh ngha 6

4 Yu cu trang thit b chng st, cu hnh u ni v tip t 12

4.1 H thng chng st nh trc tip 12

4.2 Thit b chng st (SPD) 16

4.3 Cu hnh u ni v tip t trong nh trm vin thng 17

5 Kho st v o c 20

5.1 Quy nh chung 20

5.2 Nhim v kho st 21

5.3 o in tr sut ca t 22

6 Thit k chng st v tip t 24

6.1 Nguyn tc chung 24

6.2 Thit k chng st bo v nh trm vin thng 24

6.3 Thit k chng st bo v ct ng ten vin thng 26

6.4 Thit k chng st bo v ng dy thng tin 26

6.5 Thit k h thng tip t 27

7 Thi cng lp t trang thit b chng st v h thng tip t 30

7.1 Nguyn tc chung 30

7.2 Thi cng lp t h thng chng st nh trc tip 30

7.3 Lp t thit b chng st lan truyn 30

7.4 Thi cng lp t chng st bo v ng dy thng tin 31

7.5 Thi cng h thng tip t 32

8 Kim tra, nghim thu cc h thng tip t v chng st 32

8.1 Thnh phn nghim thu 33

8.2 Nghim thu cc h thng, thit b chng st 33

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8.3 Kim tra, nghim thu h thng tip t 33

9 Yu cu v qun l v bo dng 35

Ph lc A (Quy nh) Cu hnh u ni v tip t trong cc nh trm vin thng 37

Ph lc B (Quy nh) Xc nh vng bo v ca h thng chng st nh trc tip 51

Ph lc C (Quy nh) Tnh ton tip t cho cc cng trnh vin thng 55

Ph lc D (Quy nh) Trnh t thi cng h thng tip t 77

Ph lc E (Tham kho) Cc c im kh tng v a cht ca Vit Nam 93

Ti liu tham kho 109

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Li ni u

TCVN 8071: 2009 do Vin Khoa hc K thut Bu in (RIPT) bin son, B Thng tin v Truyn

thng ngh, Tng cc Tiu chun o lng Cht lng thm nh, B Khoa hc v Cng ngh

cng b.

TCVN 8071:2009 c xy dng trn c s sot xt, chuyn i Tiu chun Ngnh TCN 68-

174:2006 Quy phm chng st v tip t cho cc cng trnh vin thng ban hnh theo Quyt

nh s 27/2006/Q-BBCVT ngy 25/7/2006 ca B Bu chnh, Vin thng (nay l B Thng tin

v Truyn thng.

Cc yu cu k thut c xy dng da trn cc quy nh, hng dn v khuyn ngh ca Lin

minh Vin thng quc t (ITU), Vin Tiu chun Vin thng chu u (ETSI), c tham kho cc tiu

chun v cng ngh chng st ca mt s quc gia trn th gii.

TCVN 8071:2009

T I U C H U N Q U C G I A TCVN 8071: 2009

Cng trnh vin thng - Quy tc thc hnh chng st v tip t

Telecommunication Plants - Code of Practice for Lightning protection and Earthing

1 Phm vi p dng

Tiu chun ny quy nh cc yu cu i vi trang thit b chng st, cu hnh u ni v tip t trong

nh trm vin thng v cc quy nh v kho st, o c, thit k, thi cng, nghim thu, qun l cc h

thng chng st v tip t cho cc cng trnh vin thng.

Cng trnh vin thng trong phm vi ca tiu chun ny bao gm:

- Nh trm v ct ng ten vin thng;

- Thit b v ng dy thng tin;

- ng in li phc v nh trm.

Cc quy nh trong tiu chun ny nhm mc ch:

- Bo v cc cng trnh vin thng, trnh nguy him cho con ngi v hn ch thit hi do st gy ra;

- Thng nht cc nguyn tc v ni dung trong cng tc kho st, o c, thit k, thi cng, nghim

thu, qun l cc h thng chng st v tip t cho cc cng trnh vin thng.

2 Ti liu vin dn

IEC 62305: Protection against lightning (Bo v khi tc ng ca st).

ITU-T Recommendation K.27, Bonding configurations and earthing inside a telecommunication building,

1996 (Cc cu hnh lin kt v tip t bn trong ta nh vin thng).

ITU-T Recommendation K31, Bonding configurations and earthing of Telecommunication installations

inside a Subscriber's building, 1993 (Cc cu hnh lin kt v tip t cc h thng vin thng bn

trong nh thu bao).

ITU-T Recommendation K35, Bonding configurations and earthing at remote electronic sites, 1996

(Cc cu hnh lin kt v tip t ti cc khu vc thit b xa).

3 Thut ng v nh ngha

3.1

Ca bin thit b in t (Electronic equipment cabinet - EEC) 6