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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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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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TCVN 8071:2009
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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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TCVN 8071:2009
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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.
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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