7.tcvn 7447-5-51_2010

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TCVN 7447-5-51:2010

IEC 60364-5-51:2005

H THNG LP T IN H P - PHN 5-51: LA CHN V LP T THIT B IN - QUY TC CHUNG

Electrical installations of buildings - Part 51: Selection and erection of electrical equipment - Common rules

Li ni u

TCVN 7447-5-51: 2010 thay th TCVN 7447-5-51:2004

TCVN 7447-5-51: 2010 hon ton tng ng vi IEC 60364-5-51:2005;

TCVN 7447-5-51: 2010 do Ban k thut tiu chun quc gia TCVN/TC/E1 My in v kh c in bin son, Tng cc Tiu chun o lng Cht lng ngh, B Khoa hc v Cng ngh cng b.

H Ni 2010



Li gii thiu

B tiu chun TCVN 7447 (IEC 60364) hin c cc phn sau:

TCVN 7447-1:2010, H thng lp t in h p - Phn 1: Nguyn tc c bn, nh gi cc c tnh chung, nh ngha

TCVN 7447-4-41:2010, H thng lp t in h p - Phn 4-41: Bo v an ton - Bo v chng in git

TCVN 7447-4-42:2005, H thng lp t in trong cc ta nh - Phn 4-42: Bo v an ton - Bo v chng cc nh hng ca nhit

TCVN 7447-4-43:2010, H thng lp t in h p - Phn 4-43: Bo v an ton - Bo v chng qu dng

TCVN 7447-4-44:2010, H thng lp t in h p - Phn 4-44: Bo v an ton - Bo v chng nhiu in p v nhiu in t

TCVN 7447-5-51:2010, H thng lp t in h p - Phn 5-51: La chn v lp t thit b in - Nguyn tc chung

TCVN 7447-5-52:2010, H thng lp t in h p - Phn 5-52: La chn v lp t thit b in - H thng i dy

TCVN 7447-5-53:2005, H thng lp t in ca cc ta nh - Phn 5-53: La chn v lp t thit b in - Cch ly, ng ct v iu khin

TCVN 7447-5-54:2005, H thng lp t in ca cc ta nh - Phn 5-54: La chn v lp t thit b in - B tr ni t, dy bo v v dy lin kt bo v

TCVN 7447-5-55-2010, H thng lp t in h p - Phn 5-55: La chn v lp t thit b in - Cc thit b khc

TCVN 7447-7-710:2006, H thng lp t in cho cc ta nh - Phn 7-710: Yu cu i vi h thng lp t c bit hoc khu vc c bit - Khu vc y t

Ngoi ra b tiu chun quc t IEC 60364 cn c cc tiu chun sau:

IEC 60364-5-56, Low-voltage electrical installations - Part 5-56: Selection and erection of electrical equipment - Safety services

IEC 60364-6, Low-voltage electrical installations - Part 6: Verification

IEC 60364-7-701, Low-voltage electrical installations - Part 7-701: Requirements for special installations or locations - Locations containing a bath or shower

IEC 60364-7-702, Low-voltage electrical installations - Part 7-702: Requirements for special installations or locations - Swimming pools and fountains

IEC 60364-7-703, Electrical installations of buildings - Part 7-703: Requirements for special installations or locations - Rooms and cabins containing sauna heaters

IEC 60364-7-704, Low-voltage electrical installations - Part 7-704: Requirements for special installations or locations - Constructions and demolition site installations

IEC 60364-7-705, Low-voltage electrical installations - Part 7-705: Requirements for special installations or locations - Agricultural and horticultural premises

IEC 60364-7-706, Low-voltage electrical installations - Part 7-706: Requirements for special installations or locations - Conducting locations with restricted movement

IEC 60364-7-708, Low-voltage electrical installations - Part 7-708: Requirements for special installations or locations - Caravan parks, camping parks and similar locations

IEC 60364-7-709, Low-voltage electrical installations - Part 7-709: Requirements for special installations or locations - Marinas and similar locations

IEC 60364-7-711, Electrical installations of buildings - Part 7-711: Requirements for special installations of locations - Exhibitions, hows and stands



IEC 60364-7-712, Electrical installations of buildings - Part 7-712: Requirements for special installations of locations - Solar photovoltaic (PV) power supply systems

IEC 60364-7-713, Electrical installations of buildings - Part 7: Requirements for special installations and locations - Section 713: Furniture

IEC 60364-7-714, Electrical installations of buildings - Part 7: Requirements for special installation or locations - Section 714: External lighting installations

IEC 60364-7-715, Electrical installations of buildings - Part 7-715: Requirements for special installations or locations - Extra-low voltage lighting installations

IEC 60364-7-717, Low-voltage electrical installations - Part 7-717: Requirements for special installations or locations - Mobile or transportable units

IEC 60364-7-721, Low-voltage electrical installations - Part 7-721: Requirements for special installations or locations - Electrical installations in caravans and motor caravans

IEC 60364-7-729, Low-voltage electrical installations - Part 7-729: Requirements for special installations or locations - Operating or maintenance gangways

IEC 60364-7-740, Electrical installations of buildings - Part 7-740: Requirements for special installations or locations - Temporary electrical installations for structures, amusement devices and booths at fairgrounds, amusement parks and circuses

IEC 60364-7-753, Low-voltage electrical installations - Part 7-753: Requirements for special installations or locations - Floor and ceiling heating systems



H THNG LP T IN H P - PHN 5-51: LA CHN V LP T THIT B IN - QUY TC CHUNG

Electrical installations of buildings - Part 51: Selection and erection of electrical equipment - Common rules

510 Gii thiu

510.1 Phm vi p dng

Tiu chun ny quy nh vic la chn v lp t thit b. Tiu chun ny a ra cc quy tc chung ph hp vi cc bin php bo v an ton, cc yu cu hot ng ng mc ch s dng ca h thng lp t v cc yu cu tng ng vi cc nh hng bn ngoi d kin.

510.2 Ti liu vin dn

Cc ti liu vin dn di y l cn thit p dng tiu chun ny. i vi cc ti liu c ghi nm cng b, ch p dng cc bn c nu. i vi cc ti liu khng ghi nm cng b, p dng bn mi nht (k c cc sa i).

TCVN 4255:2008 (IEC 60529:2001), Cp bo v bng v ngoi (m IP)

TCVN 6188-1:2007 (IEC 60884-1:2002), cm v phch cm dng trong gia nh v cc mc ch tng t - Phn 1: Yu cu chung

TCVN 7447-1:2004 (IEC 60364-1:2001), H thng lp t in ca cc ta nh - Phn 1: Nguyn tc c bn, nh gi cc c tnh chung, nh ngha1

TCVN 7447-4-41:2004 (IEC 60364-4-41:2001), H thng lp t in ca cc ta nh - Phn 4-41: Bo v an ton - Bo v chng in git2

TCVN 7447-4-42:2005 (IEC 60364-4-42:2001), H thng lp t in ca cc ta nh - Phn 4-42: Bo v an ton - Bo v chng cc nh hng v nhit

TCVN 7447-4-44:2004 (IEC 60364-4-44:2001), H thng lp t in ca cc ta nh - Phn 4-44: Bo v an ton - Bo v chng nhiu in p v nhiu in t3

TCVN 7447-5-52:2010 (IEC 60364-5-52:2009), H thng lp t in h p - Phn 5-52: La chn v lp t thit b in - H thng i dy

TCVN 7447-5-54 (IEC 60364-5-54), H thng lp t in ca cc ta nh - Phn 5-54: La chn v lp t thit b in - B tr ni t, dy bo v v lin kt bo v

TCVN 7699-2-11:2007 (IEC 60068-2-11:1981), Th nghim mi trng - Phn 2-11: Cc th nghim - Th nghim Ka: Sng mui

TCVN 7909 -2 (IEC 61000-2). Tng thch in t (EMC) - Phn 2: Mi trng

TCVN 7909-2-2:2008 (IEC 61000-2-2:2002), Tng thch in t (EMC) - Phn 2-2: Mi trng - Mc tng thch i vi nhiu dn tn s thp v tn hiu truyn trong h thng cung cp in h p cng cng

TCVN 7921-3-0:2008 (IEC 60721-3-0:2002), Phn loi iu kin mi trng - Phn 3-0: Phn loi theo nhm cc tham s mi trng v khc nghit - Gii thiu

TCVN 7922 (IEC 60617), K hiu bng hnh v trn s

TCVN 8241-4-2:2009 (IEC 61000-4-2:2001), Tng thch in t (EMC) - Phn 4-2: Phng php o v th - Min nhim i vi hin tng phng tnh in

1 Hin c TCVN 7447-1:2010 (IEC 60364-1:2005), H thng lp t in h p - Phn 1: Nguyn tc c bn, nh gi cc c tnh chung, nh ngha 2 Hin c TCVN 7447-4-41:2010 (IEC 60364-4-41:2005), H thng lp t in h p - Phn 4-41: Bo v an ton - Bo v chng in git 3 Hin c TCVN 7447-4-44:2010 (IEC 60364-4-44:2007), H thng lp t in h p - Phn 4-44: Bo v an ton - Bo v chng nhiu in p v nhiu in t



TCVN 8241-4-3:2009 (IEC 61000-4-3:2006), Tng thch in t (EMC) - Phn 4-3: Phng php o v th - Min nhim i vi nhiu pht x tn s v tuyn

TCVN 8241-4-6:2009 (IEC 61000-4-6:2004), Tng thch in t (EMC) - Phn 4-6: Phng php o v th - Min nhim i vi nhiu dn tn s v tuyn

TCVN 8241-4-8:2009 (IEC 61000-4-8:2001), Tng thch in t (EMC) - Phn 4-8: Phng php o v th - Min nhim i vi t trng tn s ngun

IEC 60073:1996, Basic and safety principles for man-machine interface, marking and identification - Coding principles for indication devices and actuators (Nguyn tc c bn v an ton i vi giao din ngi-my, ghi nhn v nhn bit - Nguyn tc m ha dng cho thit b ch th v c cu khi ng)

IEC 60079:1996 (tt c cc phn), Electrical apparatus for explosive gas atmospheres (Thit b in dng trong kh quyn c kh n)

IEC 60255-22-1:1988, Electrical relays - Part 22: Electrical disturbance tests for measuring relays and protection equipment - Section 1:1 MHz burst disturbance tests (Rle in - Phn 22: Th nghim nhiu in i vi cc rle o lng v thit b bo v - Mc 1: Th nghim nhiu t bin 1 MHz)

IEC 60446:1999, Basic and safety principles for man-machine interface, marking and identification - Indentification of conductors by colors or numerals (Nguyn tc c bn v an ton i vi giao din ngi-my, ghi nhn v nhn bit - Nhn bit dy dn bng mu sc hoc ch s)

IEC 60447:1993, Man-machine interface (MMI) - Actuating principles (Giao din ngi-my (MMI) - Nguyn l hot ng)

IEC 60707:1999, Flammability of solid non-metallic materials when exposed to flame sources - List of test methods (Kh nng chy ca vt liu rn phi kim loi khi t vo ngun la - Danh mc phng php th)

IEC 60721-3-3:1994, Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 3: Stationary use at weather-protected locations (Phn loi iu kin mi trng - Phn 3: Phn loi cc nhm tham s mi trng v mc khc nghit ca chng - Mc 3: S dng tnh ti nhng ni c bo v v thi tit)

IEC 60721-3-4:1995, Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 4: Stationary use at non-weather protected locations (Phn loi iu kin mi trng - Phn 3: Phn loi cc nhm tham s mi trng v mc khc nghit ca chng - Mc 4: S dng tnh ti nhng ni khng c bo v v thi tit)

IEC 61000-2-5:1995, Electromagnetic compatibility (EMC) - Part 2: Environment - Section 5: Classification of electromagnetic environments. Basic EMC publication (Tng thch in t (EMC) - Phn 2: Mi trng - Mc 5: Phn loi mi trng in t. Tiu chun EMC c bn)

IEC 61000-4-4:1995, Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test (Tng thch in t (EMC) - Phn 4-4: Phng php o v th - Min nhim i vi bu xung/qu in nhanh)

IEC 61000-4-12:1995, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 12: Oscillatory waves immunity test. Basic EMC publication (Tng thch in t (EMC) - Phn 4: Phng php o v th - Mc 12: Th nghim min nhim sng dao ng. Tiu chun EMC c bn)

IEC 61024-1:1990, Protection of structures against lightning - Part 1: General principles (Bo v kt cu chng st - Phn 1: Nguyn tc chung)

IEC 61082 (tt c cc phn), Preparation of documents used in electrotechology (Son tho ti liu dng trong k thut in)

IEC 61140:2001, Protection against electric shock - Common aspects for installation and equipment (Bo v chng in git - Cc kha cnh chung i vi h thng lp t v thit b)

IEC 61346-1:1996, Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules (H thng cng nghip, lp t, thit b v sn phm cng nghip - Nguyn tc xy dng v thit k chun - Phn 1: Quy tc c bn)

510.3 Quy nh chung



Tng thit b phi c la chn v lp t sao cho ph hp vi cc quy tc nu trong cc iu di y ca tiu chun ny v cc quy tc lin quan trong cc phn khc ca b TCVN 7447 (IEC 60364).

511 S ph hp vi tiu chun

511.1 Tng thit b phi ph hp vi cc tiu chun tng ng ngoi ra, phi ph hp vi bt k tiu chun ISO no c th p dng.

511.2 Nu khng c tiu chun ISO hoc tiu chun c th p dng th thit b c lin quan phi c la chn bng tha thun ring gia ngi a ra yu cu k thut v lp t v ngi lp t.

512 iu kin lm vic v nh hng bn ngoi

512.1 iu kin lm vic

512.1.1 in p

Thit b phi ph hp vi in p danh ngha (gi tr hiu dng i vi in xoay chiu) ca h thng lp t.

Nu trong h thng lp t IT c b tr trung tnh th thit b ni gia pha v trung tnh phi c cch ly v in p gia cc pha.

CH THCH: i vi mt s thit b c th cn tnh n in p cao nht v/hoc thp nht c nhiu kh nng xut hin trong vn hnh bnh thng.

512.1.2 Dng in

Thit b phi c chn theo dng in thit k (gi tr hiu dng i vi in xoay chiu) m thit b phi mang trong vn hnh bnh thng.

Thit b cng phi c kh nng mang cc dng in c th xut hin trong cc iu kin khng bnh thng trong thi gian c xc nh bi cc c tnh ca thit b bo v.

512.1.3 Tn s

Nu tn s c nh hng n c tnh ca thit b th tn s danh nh ca thit b phi tng ng vi tn s dng in trong mch in lin quan.

512.1.4 Cng sut

Thit b c chn theo c tnh cng sut ca thit b phi ph hp vi iu kin lm vic bnh thng c tnh n yu t ph ti.

512.1.5 Tnh tng thch

Nu trong qu trnh lp t khng thc hin c bin php d phng thch hp no khc th tt c cc thit b phi c chn sao cho khng gy nh hng c hi n cc thit b khc cng nh n vic cung cp in trong qu trnh vn hnh bnh thng, k c thao tc ng ct.

512.2 nh hng bn ngoi

512.2.1 Thit b in phi c chn v lp t ph hp vi cc yu cu ca Bng 51A, trong ch ra cc c tnh cn thit ca thit b theo cc nh hng bn ngoi m thit b c th phi chu.

c tnh ca thit b phi c xc nh bng cp bo v bng v ngoi hoc bng s ph hp vi cc th nghim.

512.2.2 Nu theo kt cu, thit b khng c cc c tnh ph hp vi cc yu t nh hng t bn ngoi ca v tr lp t th vn c th s dng thit b min l c bo v b sung thch hp khi lp t. Vic bo v ny khng c gy nh hng bt li cho hot ng ca thit b c bo v.

512.2.3 Khi cc nh hng bn ngoi khc nhau xy ra ng thi, chng c th c tc ng c lp hoc nh hng ln nhau, th phi c mc bo v thch hp tng ng.

512.2.4 Vic la chn thit b theo nh hng bn ngoi khng ch cn thit hot ng ng m cn m bo tin cy ca cc bin php bo v an ton ph hp vi cc nguyn tc ca b tiu chun TCVN 7447 (IEC 60364). Cc bin php bo v trong phm vi kh nng kt cu ca thit b ch c hiu lc i vi cc iu kin nh hng bn ngoi nu nu cc th nghim theo quy nh k thut ca thit b tng ng c thc hin trong nhng iu kin nh hng bn ngoi .



CH THCH 1: Trong tiu chun ny, cc cp nh hng bn ngoi di dy theo quy c gi l bnh thng.

AA Nhit mi trng AA4

AB m khng kh AB4

Cc iu kin mi trng khc (AC n AR)

XX1 cho tng tham s

Vic s dng v kt cu ca cng trnh (B v C)

XX1 cho tng tham s

XX2 cho tham s BC

CH THCH 2: T "bnh thng" ct th ba ca bng 51A c ngha l thit b phi tha mn cc tiu chun c th p dng ca IEC.

Bng 51A - c tnh nh hng bn ngoi

M nh hng bn ngoi c tnh cn thit

la chn v lp t thit b

Tham kho

A iu kin mi trng

AA Nhit mi trng

Nhit mi trng l nhit ca khng kh xung quanh ni lp t thit b

Gi thit l nhit mi trng bao gm nh hng ca thit b khc c t trong cng v tr

Nhit mi trng c xem xt i vi thit b l nhit ti ni thit b cn c lp t, do nh hng ca tt c cc thit b khc trong cng v tr, khi lm vic, khng tnh n nhit do thit b cn lp t sinh ra.

Gii hn trn v gii hn di ca di nhit mi trng:

AA1 -60 oC + 5 oC

Thit b c thit k c bit hoc b tr

thch hp a

Ton b di nhit ca IEC 60721-3-3, cp 3K8 c nhit khng kh pha cao gii hn n +5 oC. Mt phn ca di nhit ca IEC 60721-3-4, cp 4K4, c nhit khng kh pha thp gii hn n -60 oC v nhit khng kh pha cao gii hn n + 5 oC

AA2 - 40 oC + 5 oC Mt phn ca di nhit ca IEC 60721-3-3, cp 3K7, c nhit khng kh pha cao gii hn n +5 oC. Bao gm mt phn ca di nhit ca IEC 60721-3-4, cp 4K3, c nhit khng kh pha cao gii hn n +5 oC

AA3 - 25 oC + 5 oC Mt phn ca di nhit ca IEC 60721-3-3, cp 3K6, c nhit khng kh pha cao gii hn n +5 oC. Ton b di nhit ca IEC 60721-3-4, cp 4K1, c nhit khng kh pha cao gii hn n +5 oC



AA4 - 5 oC + 40 oC Bnh thng (trong nhng trng hp nht nh c th cn c cc bin php d phng c bit)

Mt phn ca di nhit ca IEC 60721-3-3, cp 3K5, c nhit khng kh pha cao gii hn n +40 oC

AA5 + 5 oC + 40 oC Bnh thng Ging nh di nhit ca IEC 60721-3-3, cp 3K3

a C th cn mt s bin php d phng b sung (v d nh bi trn c bit). b iu ny c ngha l thit b thng thng s lm vic an ton cc iu kin nh hng bn ngoi nu. c iu ny c ngha l phi c tha thun ring, v d, gia nh thit k h thng lp t v nh ch to thit b, v d i vi thit b c thit k c bit.

Bng 51A (tip theo)

M nh hng bn ngoi c tnh cn

thit la chn v lp t thit b

Tham kho

AA6 + 5 oC + 60 oC Thit b c thit k c bit hoc b tr thch hp a

Mt phn ca di nhit ca IEC 60721-3-3, cp 3K7, c nhit khng kh pha thp gii hn n + 5oC v nhit khng kh pha cao gii hn n +60 oC. Ton b di nhit ca IEC 60721-3-4, cp 4K4, c nhit khng kh pha thp gii hn n +5oC

AA7 - 25 oC + 55 oC Thit b c thit k c bit hoc b tr thch hp a

- Ging nh di nhit ca IEC 60721-3-3, cp 3K6

AA8 -50 oC + 40 oC - Ging nh di nhit ca IEC 60721-3-4, cp 4K3

Cp nhit mi trng ch p dng c khi khng c nh hng v m

Nhit trung bnh trong vng 24 h khng c vt qu nhit gii hn trn tr i 5 C

Cn kt hp c hai di nhit xc nh mt s mi trng. H thng lp t chu nhit nm ngoi hai di ny cn c xem xt ring

AB m khng kh

Nhit khng kh

oC

a) pha thp

b) pha cao

m tng i

%

c) pha thp

d) pha cao

m tuyt i

g/m3

e) pha thp

f) pha cao

AB1 -60 +5 3 100 0,003 7 Cc v tr trong nh v ngoi tri

Ton b di nhit ca IEC 60721-3-3, cp 3K8, c nhit khng kh pha cao



c nhit mi trng cc thp

Phi c tha thun thch hp c

gii hn n +5 oC. Mt phn ca di nhit ca IEC 60721-3-4, cp 4K4, c nhit khng kh pha thp gii hn n -60 oC v nhit khng kh pha cao gii hn n +5 oC

AB2 -40 +5 10 100 0,1 7 Cc v tr trong nh v ngoi tri c nhit mi trng thp


Mt phn ca di nhit ca IEC 60721-3-3, cp 3K7, c nhit khng kh pha cao gii hn n +5 oC. Mt phn ca di nhit ca IEC 60721-3-4, cp 4K4, c nhit khng kh pha thp gii hn n -60 oC v nhit khng kh pha cao gii hn n +5 oC


Bng 51A (tip theo)

M nh hng bn ngoi c tnh cn thit la chn v lp t

thit b Tham kho

Nhit khng kh

oC

a) pha thp

b) pha cao

m tng i

%

c) pha thp

d) pha cao

m tuyt i

g/m3

e) pha thp

f) pha cao

AB3 -25 +5 10 100 0,5 7 Cc v tr trong nh v ngoi tri c nhit mi trng thp


Mt phn ca di nhit ca IEC 60721-3-3, cp 3K6, c nhit khng kh pha cao gii hn n +5 oC. Ton b di nhit ca IEC 60721-3-4, cp 4K1, c di nhit khng kh pha cao gii hn n +5 oC

AB4 -5 +40 5 95 1 29 V tr c bo v v thi tit khng c khng ch nhit cng nh m. C th gia nhit lm tng nhit mi trng thp

Bnh thng b

Ging nh di nhit ca IEC 60721-3-3, cp 3K5. Nhit khng kh pha cao gii hn n +40 oC

AB5 +5 +40 5 85 1 25 V tr c bo v v thi tit c khng ch nhit

Ging nh di nhit ca IEC 60721-3-3, cp 3K3

AB6 +5 +60 10 100 1 35 Cn trnh v tr trong nh v ngoi tri c nhit mi trng cc cao, b nh hng ca nhit mi

Mt phn ca di nhit ca IEC 60721-3-3, cp 3K7, c nhit khng kh pha thp gii hn +5 oC v nhit khng kh pha cao gii hn n +60 oC. Ton b di nhit



trng lnh. C bc x mt tri v bc x nhit.


ca IEC 60721-3-4, cp 4K4, c nhit khng kh pha thp gii hn +5 oC

AB7 -25 +55 10 100 0,5 29 V tr trong nh c bo v v thi tit khng c khng ch nhit cng nh m, v tr c th thng trc tip ra khng kh bn ngoi v chu bc x mt tri



AB8 -50 +40 15 100 0,04 36 V tr ngoi tri v khng c bo v v thi tit, c nhit thp v cao




CH THCH 1: Tt c cc gi tr quy nh l gi tr ln nht hoc gi tr gii hn c kh nng b vt qu thp.

CH THCH 2: m tng i thp v cao c gii hn bi m tuyt i thp v cao, , v d i vi cc tham s mi trng a v c, hoc b v d, cc gi tr gii hn a ra khng xut hin ng thi. Do , Ph lc B cha cc biu m t s ph thuc ln nhau gia nhit khng kh, m tng i v m tuyt i i cp kh hu quy nh.

Bng 51A (tip theo)

M nh hng bn ngoi

c tnh cn thit la chn v lp t thit b Tham kho

AC cao so vi mc nc bin

AC1 2000 m Bnh thng b

AC2 > 2000 m C th cn n cc bin php d phng c bit nh p dng h s gim thng s c trng

i vi mt s thit b, c th cn c b tr c bit cao 1000 m tr ln so vi mc nc bin

AD C nc

AD1 Khng ng k Xc sut c nc l khng ng k.

V tr trong cc vch thng khng cho thy c vt nc, nhng c th c trong khong thi gian ngn, v d dng hi c bay hi tt lm kh nhanh chng.

IPX0

IEC 60721-3-4 cp 4Z6

TCVN 4255 (IEC 60529)



AD2 Nc ri t do C kh nng c cc git nc ri thng ng

V tr i khic hi nc ngng t thnh git hoc i khi c hi nc

IPX1 hoc IPX2

IEC 60721-3-3 cp 3Z7

TCVN 4255 (IEC 60529)

AD3 Tia nc C kh nng nc chy thnh tia gc n 60o so vi phng thng ng

V tr m tia nc to thnh lp mng lin tc trn s v/hoc cc vch

IPX3

IEC 60721-3-3 cp 3Z8

IEC 60721-3-4 cp 4Z7

TCVN 4255 (IEC 60529)

AD4 Nc bn vo C kh nng c nc bn vo mi hng

V tr m thit b c th b nc bn vo, iu ny p dng, v d, i vi mt s n in bn ngoi, thit b cng trng xy dng

IPX4

IEC 60721-3-3 cp 3Z9

IEC 60721-3-4 cp 4Z7

TCVN 4255 (IEC 60529)

AD5 Nc phun vo

C kh nng c nc phun vo mi hng

V tr m vi nc c s dng thng xuyn (xng, bi ra xe t)

IPX5

IEC 60721-3-3 cp 3Z10

IEC 60721-3-4 cp 4Z8

TCVN 4255 (IEC 60529)

AD6 Sng C kh nng c sng nc

V tr b bin nh bn tu, bi bin, bn cng v.v

IPX6

IEC 60721-3-4 cp 4Z9

TCVN 4255 (IEC 60529)

AD7 Ngp nc C kh nng nc ph mt phn hoc hon ton gin on

V tr c th b ngp v/hoc v tr m thit b b ngm nh sau:

thit b c cao nh hn 850 mm c t sao cho im thp nht ca thit b khng c thp hn mt nc qu 1 000 mm

thit b c cao ln hn hoc bng 850 mm c t sao cho im cao nht ca thit b khng thp hn mt nc qu 150 mm

IPX7

TCVN 4255 (IEC 60529)

AD8 Ngm nc C kh nng b nc bao ph ton b v lu di

V tr nh b bi, ni thit b in ngp hon ton v lu di trong nc p sut ln hn 10 kPa

IPX8

TCVN 4255 (IEC 60529) a C th cn mt s bin php d phng b sung (v d nh bi trn c bit). b iu ny c ngha l thit b thng thng s lm vic an ton cc iu kin nh hng bn ngoi nu. c iu ny c ngha l phi c tha thun ring, v d, gia nh thit k h thng lp t v nh ch to thit b, v d i vi thit b c thit k c bit.

Bng 51A (tip theo)



M nh hng bn ngoi


AE C vt rn t bn ngoi hoc bi

AE1 Khng ng k Lng hoc bn cht ca bi hoc vt rn t bn ngoi khng ng k

IP0X

IEC 60721-3-3 cp 3S1

IEC 60721-3-4 cp 4S1

TCVN 4255 (IEC 60529)

AE2 Vt rn nh

(2.5 mm)

C vt rn t bn ngoi c kch thc nh nht 2,5 mm

IP3X

Dng c v vt rn nh l nhng v d v vt rn xm nhp c kch thc nh nht 2,5 mm

IEC 60721-3-3 cp 3S2

IEC 60721-3-4 cp 4S2

TCVN 4255 (IEC 60529)

AE3 Vt rn rt nh

(1 mm)

l v d v vt rn c kch thc nh nht 1 mm

IP4X

Cc si dy l nhng v d v vt rn bn ngoi c kch thc nh nht 1 mm

IEC 60721-3-3 cp 3S3

IEC 60721-3-4 cp 4S3

TCVN 4255 (IEC 60529)

AE4 Bi nh C lng ng bi nh

10 < bi lng 35 mg/m2 trong mt ngy

IP5X hoc thit b IP6X nu bi khng xm nhp c vo thit b

IEC 60721-3-3 cp 3S2

IEC 60721-3-4 cp 4S2

TCVN 4255 (IEC 60529)

AE5 Bi trung bnh C lng ng bi trung bnh:

35 < bi lng 350 mg/m2 trong mt ngy

IP5X hoc thit b IP6X nu bi khng xm nhp c vo thit b.

IEC 60721-3-3 cp 3S3

IEC 60721-3-4 cp 4S2

TCVN 4255 (IEC 60529)

AE6 Bi nhiu C lng ng bi nhiu:

350 < bi lng 1 000 mg/m2 trong mt ngy

IP6X

IEC 60721-3-3 cp 3S4

IEC 60721-3-4 cp 4S4

TCVN 4255 (IEC 60529)

AF C cht n mn hoc cht nhim bn

AF1 Khng ng k Lng hoc bn cht ca cht n mn hoc cht nhim bn khng ng k

Bnh thngb

IEC 60721-3-3 cp 3C1

IEC 60721-3-4 cp 4C1

AF2 Kh quyn Cht n mn hoc cht nhim bn c ngun gc t kh quyn l ng k

H thng lp t trn bin hoc gn khu cng nghip gy nhim kh quyn nghim trng, nh xng ha cht, sn xut xi mng; loi nhim ny c bit xut hin trong qu trnh pht sinh bi mi mn, cch in hoc dn in

Theo tnh cht ca cc cht (v d, tha mn th nghim sng mui theo TCVN 7699-2-11 (IEC 60068-2-11))

IEC 60721-3-3 cp 3C2

IEC 60721-3-4 cp 4C2

AF3 Gin on hoc ngu nhin

Gin on hoc ngu nhin chu cht n mn hoc cht nhim bn ha hc c s dng hoc c ch to

V tr m mt s sn phm ha c x l vi lng

IEC 60721-3-3 cp 3C3

IEC 60721-3-4 cp 4C3



nh v ni cc sn phm ny ch c th ngu nhin tip xc vi thit b in; nhng iu kin ny thng c phng th nghim ca nh my, cc phng th nghim khc hoc nhng ni s dng hyrocacbon (gian t ni hi, nh t)

Bo v chng n mn theo yu cu k thut ca thit b

AF4 Lin tc Lin tc chu cht n mn hoc cht nhim bn ha hc vi lng ng k, v d cc xng ha cht

Thit b c thit k ring theo tnh cht ca cc cht

IEC 60721-3-3 cp 3C4

IEC 60721-3-4 cp 4C4


Bng 51A (tip theo)

M nh hng bn ngoi


AG ng xut c (xem Ph lc C)

AG1 Mc khc nghit thp

Bnh thng, v d nh thit b gia dng v thit b tng t

IEC 60721-3-3 cp 3M 1/3M2/3M3

IEC 60721-3-4 cp 4M1/4M2/4M3

AG2 Mc khc nghit trung bnh

Thit b cng nghip tiu chun, ty theo ni, hoc bo v tng cng

IEC 60721-3-3 cp 3M4/3M5/3M6

IEC 60721-3-4 cp 4M4/4M5/4M6

AG3 Mc khc nghit cao

Bo v tng cng IEC 60721-3-3 cp 3M7/3M8

IEC 60721-3-4 cp 4M7/4M8

AH Rung (xem ph lc C)

AH1 Mc khc nghit thp

Dng trong gia nh hoc iu kin tng t m nh hng ca rung thng khng ng k

Bnh thnga

IEC 60721-3-3 cp 3M1/3M2/3M3

IEC 60721-3-4 cp 4M1/4M2/4M3

AH2 Mc khc nghit trung bnh

iu kin cng nghip thng thng

Thit b c thit k c bit hoc c tha thun ring

IEC 60721-3-3 cp 3M4/3M5/3M6

IEC 60721-3-4 cp 4M4/4M5/4M6

AH3 Mc khc nghit cao

H thng lp t cng nghip chu cc iu kin khc nghit

Thit b c thit k c bit hoc c tha thun ring

IEC 60721-3-3 cp 3M7/3M8

IEC 60721-3-4 cp 4M7/4M8

AK C thc vt v hoc nm mc pht trin



AK1 Khng nguy him

Khng c nguy him gy hi t s pht trin ca thc vt v/hoc nm mc

Bnh thng a

IEC 60721-3-3, cp 3B1

IEC 60721-3-4, cp 4B1

AK2 Nguy him C nguy him gy hi t s pht trin ca thc vt v/hoc nm mc

Nguy him ph thuc vo iu kin cc b v bn cht ca thc vt. Phi phn bit gia s pht trin gy hi ca thc vt hoc cc iu kin nm mc pht trin

Bo v c bit, nh:

- tng cp bo v (xem AE)

- vt liu c bit hoc lp bo v ca v bc

- b tr loi b thc vt khi v tr

IEC 60721-3-3, cp 3B2

IEC 60721-3-4, cp 4B2

a iu ny c ngha l thit b thng thng s lm vic an ton cc iu kin nh hng bn ngoi nu.

CH THCH: Php, tham kho m IK xc nh trong IEC 62262 p dng nh sau:

AG ng xut c (xem Ph lc C)

AG1 Mc khc nghit thp

Mi trng hu nh ch chu nng lng xc thp bng 0,2 J

IK02

H thng lp t gia dng bnh thng

Cho php cc bng n khng c chp

IEC 60721-3-3 cp 3M1/3M2/3M3

IEC 60721-3-4 cp 4M1/4M2/4M3

AG2 Mc khc nghit trung bnh

Mi trng hu nh ch chu nng lng xc thp bng 2 J

IK07

H thng lp t cng nghip tiu chun v tng t

IEC 60721-3-3 cp 3M4/3M5/3M6

IEC 60721-3-4 cp 4M4/4M5/4M6

AG3 Mc khc nghit cao


IK08

H thng lp t cng nghip nng n v tng t

IEC 60721-3-3 cp 3M7/3M8

IEC 60721-3-4 cp 4M7/4M8

AG4 Mc khc nghit rt cao


IK10

H thng lp t cng nghip nng n v tng t

Bng 51A (tip theo)

M nh hng bn ngoi

c tnh cn thit la chn v lp t thit b

Tham kho

AL C ng vt

AL1 Khng nguy him

Khng c nguy him gy hi t ng vt

Bnh thng b

IEC 60721-3-3, cp 3B1

IEC 60721-3-4, cp 4B1

AL2 Nguy him C nguy him gy hi t ng vt (cn trng, chim, ng vt nh)

IEC 60721-3-3, cp 3B2

IEC 60721-3-4, cp 4B2



Nguy him ph thuc vo bn cht ca ng vt. Phi phn bit gia:

- s c mt ca cn trng vi s lng c hi hoc c bn cht hung d

- c mt ng vt nh hoc chim vi s lng c hi hoc c bn cht hung d

Bo v c th gm:

- cp bo v thch hp chng li s xm nhp ca vt rn (xem AE)

- bn c (xem AG)

- bin php d phng loi tr ng vt khi v tr (nh gi sch, s dng thuc tr ng vt gy hi)

- thit b c bit hoc lp ph bo v ca v bc

AM

nh hng v in t, tnh in hoc in ha (xem B TCVN 7909-2 (IEC 61000-2) v b TCVN 8241-4 (61000-4))

Hin tng in t tn s thp (dn hoc bc x)

Sng hi, hi tng h

AM-1-1 Mc kim sot c

Cn ch l tnh trng c th kim sot khng b suy gim

AM-1-2 Mc bnh thng

C bin php c bit trong thit k lp t, v d nh b lc

Ph hp vi Bng 1 ca TCVN 7909-2-2 (IEC 61000-2-2)

AM-1-3 Mc cao Cc b cao hn Bng 1 ca TCVN 7909-2-2 (IEC 61000-2-2)

in p bo hiu

AM-2-1 Mc kim sot c

Kh nng: Mch chn Thp hn quy nh di y IEC 61000-2-1 v TCVN 7909-2-2 (IEC 61000-2-2)

AM-2-2 Mc trung bnh

Khng c yu cu b sung

AM-2-3 Mc cao C bin php thch hp

Bin thin bin in p

AM-3-1 Mc kim sot c

AM-3-2 Mc bnh thng

Ph hp vi TCVN 7447-4-44 (IEC 60364-4-44)

AM-4 Mt cn bng in p Ph hp vi TCVN 7909-2-2 (IEC 61000-2-2)

AM-5 Bin thin tn s ngun 1 Hz theo TCVN 7909-2-2 (IEC 61000-2-2)

in p cm ng tn s thp

AM-6 Khng phn loi

Lin quan n TCVN 7447-4-44 (IEC 60364-4-44)

Chu mc cao ca h thng tn hiu v iu khin ca c cu ng ct v iu khin

ITU-T



Dng in mt chiu trong mng in xoay chiu

AM-7 Khng phn loi

C bin php hn ch s c mt ca dng in ny v mc v thi gian thit b s dng dng in hoc vng ln cn


Bng 51A (tip theo)

M nh hng bn

ngoi c tnh cn thit la chn v lp t thit

b Tham kho

T trng bc x

AM-8-1 Mc trung bnh Bnh thngb Mc 2 ca TCVN 8241-4-8 (IEC 61000-4-8)

AM-8-2 Mc cao Bo v bng bin php thch hp, v d nh mn chn v/hoc cch ly

Mc 4 ca TCVN 8241-4-8 (IEC 61000-4-8)

in trng

AM-9-1 Mc khng ng k

Bnh thngb

AM-9-2 Mc trung bnh Lin quan n IEC 61000-2-5 IEC 61000-2-5

AM-9-3 Mc cao Lin quan n IEC 61000-2-5

AM-9-4 Mc rt cao Lin quan n IEC 61000-2-5

Hin tng in t tn s cao loi dn, cm ng hoc bc x (lin tc hoc qu )

in p hoc dng in dao ng cm ng

AM-21 Khng phn loi Bnh thngb TCVN 8241-4-6 (IEC 61000-4-6)

Qu loi dn n hng, thang o thi gian nan giy

IEC 61000-4-4

AM-22-1 Mc khng ng k

Cn c bin php bo v Mc 1

AM-22-2 Mc trung bnh Cn c bin php bo v (xem 321.10.2.2) Mc 2

AM-22-3 Mc cao Thit b thng thng Mc 3

AM-22-4 Mc rt cao Thit b c kh nng min nhim cao Mc 4

Qu dn n hng, thang o thi gian micr giy n miligiy

AM-23-1 Mc kim sot c

Thit b chu xung v bin php bo v qu in p c chn c tnh n in p ngun danh ngha v cp chu xung theo TCVN 7447-4-44 (IEC 60364-4-44)

TCVN 7447-4-44 (IEC 60364-4-44)

TCVN 7447-4-44 (IEC 60364-4-44)

AM-23-2 Mc trung bnh

AM-23-3 Mc cao



Qu dao ng dn

AM-24-1 Mc trung bnh Lin quan n IEC 61000-4-12 IEC 61000-4-12

AM-24-2 Mc cao Lin quan n IEC 60255-22-1 IEC 60255-22-1

Hin tng bc x tn s cao TCVN 8241-4-3 (IEC 61000-4-3)

AM-25-1 Mc khng ng k

Mc 1

AM-25-2 Mc trung bnh Bnh thng b Mc 2

AM-25-3 Mc cao Mc tng cng Mc 3

Phng in tnh in TCVN 8241-4-2 (IEC 61000-4-2)

AM-31-1 Mc thp Bnh thng b Mc 1

AM-31-2 Mc trung bnh Bnh thng b Mc 2

AM-31-3 Mc cao Bnh thng b Mc 3

AM-31-4 Mc rt cao Mc tng cng Mc 4

AM-41-1 Ion ha

Khng phn loi

Bo v c bit nh:

- Cch ly vi ngun

- Xen gia cc mn chn v v bc bng vt liu c bit


Bng 51A (tip theo)

M nh hng bn ngoi


AN Bc x mt tri

AN1 Thp Cng 500 W/m2

Bnh thng b

IEC 60721-3-3

AN2 Trung bnh 500 W/m2 < Cng 700 W/m2


IEC 60721-3-3

AN3 Cao 700 W/m2 < Cng 1120 W/m2


B tr ny c th l:

- vt liu chng bc x tia cc tm

- lp ph mu c bit

- xen k cc mn chn

IEC 60721-3-4

AP nh hng a chn

AP1 Khng ng k Gia tc 30 Gal (1 Gal = 1 cm/s2)



Bnh thng

AP2 Mc khc nghit thp

30 Gal < Gia tc 300 Gal

ang xem xt

AP3 Mc khc nghit trung bnh

300 Gal < Gia tc 600 Gal

ang xem xt

AP4 Mc khc nghit cao

600 Gal < Gia tc

ang xem xt

Chn ng c th lm ph hy cng trnh khng nm trong phn loi

Khi phn loi khng xt n tn s, tuy nhin, nu sng a chn cng hng vi cng trnh th nh hng ca a chn phi c xem xt ring. Ni chung, tn s ca gia tc a chn l t 0 Hz n 10 Hz

AQ St

AQ1 Khng ng k 25 ngy trong mt nm hoc kt qu nh gi ri ro theo iu 443 ca TCVN 7447-4-44 (IEC 60364-4-44)

AQ2 Chu gin tip > 25 ngy trong mt nm hoc kt qu nh gi ri ro theo iu 443 ca TCVN 7447-4-44 (IEC 60364-4-44)

Bnh thng

AQ3 Chu trc tip Nguy him do thit b b phi nhim

Nu cn c bo v chng st th phi b tr theo IEC 61024-1

AR Lu thng khng kh

AR1 Thp Tc 1 m/s

Bnh thng b

AR2 Trung bnh 1 m/s < Tc 5 m/s


AR3 Cao 5 m/s < Tc 10 m/s



Bng 51A (tip theo)

M nh hng bn ngoi


AS Gi

AS1 Nh Tc 20 m/s



Bnh thngb

AS2 Trung bnh 20 m/s < Tc 30 m/s


AS3 Mnh 30 m/s < Tc 50 m/s

Phi c tha thun thch hpc

B S dng

BA Nng lc ca con ngi

BA1 Thng thng Ngi cha qua o to

Bnh thngb

BA2 Tr em V tr d kin c nhm tr emd

Nh tr

Thit b c cp bo v cao hn IP2X

cm phi c cung cp ti thiu l IP2X hoc IPXXB v tng bo v theo TCVN 6188-1 (IEC 60884-1)

Khng tip cn c thit b c nhit b mt vt qu 80oC (60oC i vi nh tr v ni tng t)

BA3 Ngi tn tt Ngi khng iu khin c tt c cc kh nng vt l v tr tu (ngi b m, ngi gi)

Bnh vin

Theo bn cht tn tt

BA4 c o to Ngi c hng dn v gim st thch hp bi ngi c k nng cho php h trnh cc nguy him do in to ra (nhn vin vn hnh v bo tr)

Khu vc c vn hnh in

BA5 C k nng Ngi c kin thc k thut hoc kinh nghim cho php h trnh nguy him do in to ra (k s v k thut vin)

Khu vc vn hnh in khp kn

BB in tr ca thn ngi (ang xem xt)

BC Tip xc ca ngi vi in th t

BC1 Khng Cp thit b theo IEC 61140 413.3 ca TCVN 7447-4-41 (IEC 60364-4-41)

0-0I I II III

Ngi tnh trng cch in khng dn in

BC2 Thp A Y A A

Ngi tnh trng khng bnh thng gy tip xc vi cc b phn dn t bn ngoi hoc ng trn b mt dn

A A A A

a C th cn mt s bin php d phng b sung (v d nh bi trn c bit). b iu ny c ngha l thit b thng thng s lm vic an ton cc iu kin nh hng bn ngoi



nu. c iu ny c ngha l phi c tha thun ring, v d, gia nh thit k h thng lp t v nh ch to thit b, v d i vi thit b c thit k c bit. d Cp ny khng nht thit phi p dng cho khu vc nh gia nh. Nauy, nh c xem l m BA2

Bng 51A (tip theo)

M nh hng bn ngoi


BC3 Thng xuyn Ngi thng xuyn chm vo cc b phn dn t bn ngoi hoc ng trn b mt dn

V tr c b phn dn t bn ngoi l nhiu hoc rng

X A A A

A Cho php thit b

X Cm thit b

Y Cho php nu s dng cp 0

BC4 Lin tc Ngi phi lm vic trong nc hoc tip xc di hn vi kim loi bao quanh v i vi ngi kh m hn ch tip xc

Mi trng kim loi nh ni hi v thng cha

ang xem xt

BD iu kin s tn khn cp

BD1 (Mt thp/d thot)

Mt chim gi thp, iu kin d dng s tn

Ta nh c tr c cao bnh thng hoc thp

Bnh thng

BD2 (Mt thp/kh thot)

Mt chim gi thp, iu kin kh s tn

Ta nh cao tng

BD3 (Mt cao/d thot)

Mt chim gi cao, iu kin d dng s tn

Cc a im cng cng (nh ht, rp chiu phim, trung tm thng mi v.v)

BD4 (Mt cao/kh thot)

Mt chim gi cao, iu kin kh s tn

Ta nh cng cng cao tng (khch sn, bnh vin, v.v)

BE Bn cht ca vt liu gia cng hoc lu gi

BE1 Khng c ri ro ng k

Bnh thng b

BE2 Ri ro v chy Ch to, gia cng hoc lu gi vt liu d chy c bi

Nh kho, xng gia cng g, nh my giy

Thit b lm bng vt liu lm chm s lan rng ca ngn la. Cc b tr lm tng nhit ng k hoc tia la in gia cc thit b khng th gy chy bn ngoi

IEC 60364-4-42

TCVN 7447-5-52

(IEC 60364-5-52)



BE3 Ri ro n Gia cng hoc lu gi vt liu n hoc c im chp chy thp c bi d n

Lc du, lu gi hyro ccbon

Yu cu i vi thit b in s dng trong kh quyn c cht d n (IEC 60079)

ang xem xt

a C th cn mt s bin php d phng b sung (v d nh bi trn c bit). b iu ny c ngha l thit b thng thng s lm vic an ton cc iu kin nh hng bn ngoi nu. c iu ny c ngha l phi c tha thun ring, v d, gia nh thit k h thng lp t v nh ch to thit b, v d i vi thit b c thit k c bit. d Cp ny khng nht thit phi p dng cho khu vc nh gia nh. Nauy, nh c xem l m BA2

Bng 51A (tip theo)

M nh hng bn ngoi


BE4 Ri ro nhim bn

C thc phm, dc phm khng c bo v v cc sn phm tng t khng c bo v

Cng nghip thc phm, nh bp:

Cn c cc phng nga nht nh, trong trng hp c s c, ngn nga cc vt liu ch bin b nhim bn bi thit b in, v d bi cc bng n b v.

B tr thch hp, nh:

- bo v chng mnh v ri t bng n n v cc vt d v khc

- mn chn chng bc x c hi nh tia hng ngoi hoc tia cc tm

C Kt cu ca ta nh

CA Vt liu kt cu

IEC 60364-4-42

CA1 Khng chy Bnh thngb

CA2 Chy

Ta nh c kt cu phn ln bng cc vt liu chy

Ta nh bng g

ang xem xt

CB Thit k ca ta nh

CB1 Ri ro khng ng k

Bnh thngb

CB2 Chy lan

Ta nh c hnh dng v kch thc thun tin cho vic chy lan (v d nh nh hng ca ng khi)

Ta nh cao tng. H thng thng gi cng bc

Thit b lm bng vt liu lm chm s lan truyn ngn la, bao gm c chy khng bt ngun t h thng lp t in. Ro cn chyd

IEC 60364-4-42

TCVN 7447-5-52

(IEC 60364-5-52)

CB3 Chuyn ng Ri ro do dch chuyn kt cu (v d, dch chuyn Mi ni co hoc gin



gia cc b phn khc nhau ca ta nh hoc gia ta nh v nn hoc mng ta nh)

Ta nh c chiu di ng k hoc c xy dng trn nn khng n nh

Cc mi ni co gin trong h thng i dy in

TCVN 7447-5-52

(IEC 60364-5-52)

CB4 D thay i hoc khng n nh

Kt cu yu hoc phi chu chuyn ng (v d nh dao ng)

Lu, kt cu bng khng kh, trn gi, vch ngn dch chuyn c. H thng lp t c kt cu t .

ang xem xt

H thng dy mm (ang xem xt)

TCVN 7447-5-52

(IEC 60364-5-52)

a C th cn mt s bin php d phng b sung (v d nh bi trn c bit). b iu ny c ngha l thit b thng thng s lm vic an ton cc iu kin nh hng bn ngoi nu. c iu ny c ngha l phi c tha thun ring, v d, gia nh thit k h thng lp t v nh ch to thit b, v d i vi thit b c thit k c bit. d Cp ny khng nht thit phi p dng cho khu vc nh gia nh. Nauy, nh c xem l m BA2

513 Kh nng tip cn

513.1 Quy nh chung

Tt c cc thit b, k c h thng dy, buc phi c b tr sao cho d dng thao tc, kim tra, bo dng v tip cn cc mi ni ca thit b. Nhng yu t ny khng c suy gim ng k khi lp t thit b trong v bc hoc ngn cha.

514 Nhn bit

514.1 Quy nh chung

Nhn hoc phng tin nhn bit thch hp khc phi c cung cp ch ra mc ch ca thit b ng ct v iu khin, tr khi khng th nhm ln.

Nu ngi vn hnh khng th quan st c hot ng ca thit b ng ct v iu khin v nu iu ny gy nguy him th phi t mt b ch th ph hp tun th IEC 60073 v IEC 60447, nu p dng c, v tr ngi vn hnh nhn thy c.

514.2 H thng i dy

H thng dy phi c b tr hoc nh du sao cho c th nhn bit kim tra, th nghim, sa cha hoc thay i h thng lp t.

514.3 Nhn bit dy trung tnh v dy bo v

514.3.1 Vic nhn bit dy trung tnh v dy bo v ring r phi tun th IEC 60446.

514.3.2 Dy dn PEN, nu c cch in, phi c nh du bng mt trong hai phng php sau:

- mu xanh lc/vng trn sut chiu di dy, ngoi ra, nh du bng mu xanh da tri nht cc u ni, hoc

- mu xanh da tri nht trn sut chiu di dy, ngoi ra, nh du bng mu xanh lc/vng ti cc u ni.

CH THCH: Ban k thut ca quc gia thc hin vic la chn mt hoc nhiu phng php.

514.4 Thit b bo v

Thit b bo v phi c b tr v nhn bit sao cho c th d dng nhn ra mch bo v; vi mc ch ny, nn tp hp cc thit b bo v ny thnh nhm trong t phn phi.

514.5 S in



514.5.1 Khi thch hp, phi cung cp cc s , biu hoc bng ph hp vi IEC 61346-1 v b IEC 61082, ch ra c th:

- loi v thnh phn mch in (cc im s dng, s lng v kch c dy dn, loi dy);

- cc c tnh cn thit nhn bit cc thit b thc hin chc nng bo v, cch ly v ng ct cng nh v tr t ca chng.

i vi h thng lp t n gin, c th nu cc thng tin trong mt bn lit k.

514.5.2 Cc k hiu phi c chn theo TCVN 7922 (IEC 60617).

515 Ngn nga nh hng bt li ln nhau

515.1 Thit b phi c chn v lp t sao cho trnh mi nh hng c hi gia h thng lp t in v cc h thng lp t khng c in khc.

Thit b khng c tm pha sau th khng c lp t trn b mt ta nh nu khng tha mn cc yu cu di y:

- ngn nga in p truyn n b mt cng trnh;

- c cch ly chy gia thit b v b mt d chy ca cng trnh.

Nu b mt ca ta nh l phi kim loi v khng bt chy th khng cn c cc bin php b sung. Nu khng th c th tha mn cc yu cu ny bng mt trong cc bin php sau:

- nu b mt cng trnh l kim loi th phi ni dy bo v (PE) hoc ni vi dy dn lin kt ng th ca h thng lp t, ph hp vi 413.1.6 ca TCVN 7447-4-41 (IEC 60364-4-41) v TCVN 7447-5-54 (IEC 60364-5-54).

- nu b mt cng trnh c th chy th phi cch ly vi thit b bng mt lp vt liu cch in trung gian thch hp c tc chy FH1 theo IEC 60707.

515.2 Nu thit b mang cc dng in thuc loi khc nhau hoc in p khc nhau tp trung trn mt khi lp rp chung (v d nh t ng ct, ngn k thut hay bn hoc hp iu khin) th thit b thuc mt loi dng in bt k hoc mt in p bt k phi cch ly hiu qu nhng ni cn thit trnh nh hng bt li ln nhau.

515.3 Tng thch in t

515.3.1 La chn mc min nhim v pht x

515.3.1.1 Mc min nhim ca thit b phi tnh n cc nh hng in t (xem Bng 51A) c th xut hin khi u ni v lp t nh trong s dng bnh thng, cng nh tnh n mc phc v lin tc cn thit mong mun i vi ng dng.

515.3.1.2 Thit b phi c chn vi mc pht x thp sao cho khng th gy ra nhiu in t do vic dn hoc truyn in trong khng kh vi cc thit b in khc bn trong hay bn ngoi cng trnh. Nu cn, phi lp t phng tin gim nh gim thiu mc pht x (xem TCVN 7447-4-44 (IEC 60364-4-44))

CH THCH: Thit b cn tun th TCVN 6988 (CISPR 11), CISPR 12, TCVN 7600 (CISPR 13), TCVN 7492 (CISPR 14), TCVN 7186 (CISPR 15), TCVN 7189 (CISPR 22) v cc tiu chun ca ban k thut 77 ca IEC (b IEC 61000), khi c lin quan

516 Bin php lin quan n dng in trong dy dn bo v

Dng in trong dy dn bo v pht ra t thit b in trong cc iu kin lm vic bnh thng v thit k h thng lp t in phi tng thch to an ton v m bo s dng bnh thng.

Dng in trong dy dn bo v cho php i vi thit b c quy nh 7.5.2 ca IEC 61140 v c gii thiu li trong Ph lc E v phi c lu n khi nh ch to khng sn c cc thng tin.

CH THCH 1: Vi mc ch ca iu 516, dng in trong dy dn bo v l dng in chy trong dy bo v khi thit b khng gp s c v vn hnh bnh thng.

CH THCH 2: ngn nga nh khng mong mun ca c cu bo v dng d do dng in trong dy dn bo v, xem 531.2.1.3.



CH THCH 3: Ngi lp t cn thng bo cho ch ca h thng lp t rng tt nht l cn chn thit b m nh ch to cung cp thng tin lin quan n gi tr ca dng in trong dy dn bo v. Cn chn thit b c gi tr thp trnh nh khng mong mun.

CH THCH 4: i vi dy dn bo v tng cng, xem 543.7.

516.1 My bin p

C th cn thc hin cc bin php trong h thng lp t in hn ch dng in trong dy dn bo v nh cung cp my bin p cun dy ring r trong khu vc c gii hn.

516.2 H thng truyn tn hiu

Khng c php s dng dy dn mang in bt k cng vi dy dn bo v lm tuyn tr v truyn tn hiu

CH THCH: i vi vic s dng dy dn tr v mt chiu, xem cc yu cu 543.5.1 ca TCVN 7447-5-54:2005 (IEC 60364-5-54:2002).

Ph lc A

(tham kho)

Danh mc tm tt cc nh hng bn ngoi

A

Mi trng

iu kin mi trng AK

AK1

AK2

Thc vt

Khng nguy him

Nguy him

AM22 Qu loi dn n hng, thang o thi gian nan giy

AA Nhit (oC) AM22-1 Mc khng ng k

AA1

AA2

AA3

AA4

AA5

AA6

AA7

AA8

-60

-40

-25

-5

+5

+5

-25

-50

+5

+5

+5

+40

+40

+60

+55

+40

AM22-2 Mc trung bnh

AL

AL1

AL2

ng vt

Khng nguy him

Nguy him

AM22-3 Mc cao

AM22-4 Mc rt cao

AM23 Qu dn n hng, thang o thi gian micro giy n miligiy

AM23-1 Mc kim sot c

AM nh hng v in t, tnh in hoc in ha. Hin tng in t tn s thp (dn hoc bc x)

AM23-2 Mc trung bnh

AM23-3 Mc cao

AM24 Qu dao ng dn

AB Nhit v m AM24-1 Mc trung bnh

AB1

AB2

AB3

AB4

AB5

AB6

AB7

AB8

-60 oC

-40 oC

-25 oC

-5 oC

+5 oC

+5 oC

-25 oC

-50 oC

+5 oC

+5 oC

+5 oC

+40 oC

+40 oC

+60 oC

+55 oC

+40 oC

3 %

10%

10%

5%

5%

10%

10%

15%

100%

100%

100%

95%

85%

100%

100%

100%

AM24-2 Mc cao

AM1 Sng hi, hi tng h

AM25 Hin tng bc x tn s cao

AM1-1 Mc kim sot c

AM25-1 Mc khng ng k

AM1-2 Mc bnh thng AM25-2 Mc trung bnh

AM1-3 Mc cao AM25-3 Mc cao

AM2 in p bo hiu AM31 Phng in tnh in

AM2-1 Mc kim sot c

AM31-1

AM31-2

Mc thp

Mc trung bnh AM2-2 Mc bnh thng



AM2-3 Mc cao AM31-3

AM31-4

Mc cao

Mc rt cao AC cao so vi mc nc bin (m)

AM3 Bin thin bin in p

AC1 2000 AM3-1 Mc kim sot c

AM41-1 Ion ha

AC2 >2000 AM3-2 Mc bnh thng

AD

AD1

AD2

AD3

AD4

Nc

Khng ng k

Nc nh git

Tia nc

Nc bn vo

AM4 Mt cn bng in p

AM5 Bin thin tn s ngun

AM6 in p cm ng tn s thp

AM7 Dng in mt chiu trong mng in xoay chiu

AD5

AD6

AD7

AD8

Nc phun vo

Sng

Ngp nc

Ngm nc

AM8

AM8-1

AM8-2

T trng bc x

Mc trung bnh

Mc cao

AN Mt tri

AE

AE1

AE2

AE3

AE4

AE5

AE6

Vt liu t bn ngoi

Khng ng k

Nh

Rt nh

Bi nh

Bi trung bnh

Bi nhiu

AM9 in trng AN1 Thp

AM9-1 Mc khng ng k

AN2 Trung bnh

AM9-2 Mc trung bnh AN3 Cao

AM9-3 Mc cao

AM9-4 Mc rt cao AP a chn

Hin tng in t tn s cao loi dn, cm ng hoc bc x (lin tc hoc qu )

AP1 Khng ng k

AP2 Nh

AF

AF1

n mn

Khng ng k

AP3 Trung bnh

AM21 in p hoc dng in dao ng cm ng

AP4 Mnh

AF2

AF3

AF4

Khng kh

Gin on

Lin tc

AQ St

AQ1 Khng ng k

AQ2 Gin tip

AQ3 Trc tip

ng sut c

AG

AG1

AG2

AG3

Va p

Mc khc nghit thp

Mc khc nghit trung bnh

Mc khc nghit cao

AR Lu thng khng kh

AR1 Thp

AR2 Trung bnh

AR3 Cao

AH Rung AS Gi



AH1 Mc khc nghit thp AS1 Nh

AH2 Mc khc nghit trung bnh AS2 Trung bnh

AH3 Mc khc nghit cao AS3 Mnh

B

S dung

S dng BC Tip t BE Bn cht ca vt liu gia cng hoc lu gi

BA

BA1

BA2

BA3

BA4

BA5

Kh nng ca con ngi

Thng thng

Tr em

Ngi tn tt

Ngi c o to

Ngi c k nng

BC1

BC2

BC3

BC4

Khng

Thp

Thng xuyn

Lin tc

BE1 Khng c ri ro ng k

BE2 Ri ro chy

BE3 Ri ro n

BE4 Ri ro nhim bn

BD iu kin s tn

BB in tr ca c th ngi BD1 Mt thp/D thot

BD2 Mt thp/Kh thot

BD3 Mt cao/D thot

BD4 Mt cao/Kh thot

C

Ta nh

Kt cu v ta nh CB Thit k ta nh

CA Vt liu kt cu CB1 Ri ro khng ng k

CA1 Khng chy CB2 Lan truyn ngn la

CA2 C th chy CB3 Chuyn ng

CB4 Mm do hoc khng n nh

Ph lc B

(Ph lc B ca IEC 60364-3)

(tham kho)

S ph thuc ln nhau gia nhit khng kh, m khng kh tng i v m khng kh tuyt i

Ph lc ny a ra biu kh hu i vi tng cp iu kin kh hu mi trng, th hin s ph thuc ln nhau ca nhit khng kh, m khng kh tng i v m khng kh tuyt i bng cc ng cong biu din m tuyt i khng i v cc ng thng biu din nhit v m tng i.

Trong chng mc lin quan n nhit , biu kh hu cho thy chnh lch nhit ln nht c th i vi v tr bt k lin quan n cp .

Trong chng mc lin quan n m khng kh, biu kh hu bao gm phn b y cc gi tr m khng kh tng i theo nhit khng kh bt k xut hin trong phm vi di lin quan n cp . S ph thuc ln nhau gia nhit v m c xc nh bng cc gi tr m khng kh tuyt i xut hin trong phm vi di ca cp .



Nh nu trong cc ch thch ca bng 51A, gi tr gii hn, v d, ca nhit khng kh pha cao v m khng kh tng i sao cho trong cc cp thng khng cng xut hin. Thng thng, gi tr nhit khng kh pha cao hn s xut hin kt hp vi gi tr m khng kh tng i thp hn.

Nguyn tc ny khng p dng cho cc cp AB1, AB2 v AB3, trong gi tr m tng i bt k quy nh cho di c th kt hp vi gi tr nhit khng kh pha cao nht. Cn xem xt thc t ny cng vi gi tr thp hn ca m tuyt i vi gi tr gii hn nhit khng kh pha cao trong cc cp ny.

xem xt tnh hung ny, bng di y a ra gi tr cao nht ca nhit khng kh c th xut hin i vi tng cp, cng vi gi tr m khng kh tng i cao nht ca cp . nhit khng kh cao hn gi tr nu trong bng, m khng kh tng i s thp hn, ngha l bn di gi tr gii hn ca cp .

M hiu cp Gi tr gii hn m khng kh

tng i

Gi tr nhit khng kh cao nht c th xut hin cng vi

gi tr gii hn m khng kh tng i

AB1 100 % + 5 oC

AB2 100 % + 5 oC

AB3 100 % + 5 oC

AB4 95 % + 31 oC

AB5 85 % + 28 oC

AB6 100 % + 33 oC

AB7 100 % + 27 oC

AB8 100 % + 33 oC

Trn thc t, c th s dng biu kh hu nh sau:

Gi tr m khng kh tng i lin quan ti mt gi tr nhit khng kh nht nh trong phm vi di nhit ca mt cp c th thy ti im m ng cong biu din hng s m khng kh tuyt i ct ng thng biu din nhit khng kh v ng thng biu din m khng kh tng i tng ng.

V d:

Mt sn phm c th c chn theo iu kin lp t thuc cp AB6. tm ra m khng kh tng i m sn phm phi chu mc ti a, v d, 40 oC, trong biu kh hu dnh cho cp AB6, theo ng thng thng ng biu din nhit khng kh 40 oC ln n im ng thng ny gp ng cong biu din m khng kh tuyt i 35 g/m3 l gi tr gii hn v m khng kh tuyt i cao ca cp ny. T im ny, k mt ng thng nm ngang theo thang m khng kh tng i, khi , ta s tm c gi tr m khng kh tng i l 67%.

Bng cch s dng phng php ny, c th tm c kh nng kt hp bt k khc gia nhit khng kh v m khng kh tng i trong phm vi di ca cp , v d, cp AB6, s tm ra gi tr m khng kh tng i l 27% ti gi tr gii hn nhit khng kh pha cao 60 oC.

Biu kh hu

S ph thuc ln nhau gia nhit khng kh, m khng kh tng i v m khng kh tuyt i.

Cp AB1



Biu kh hu


Cp AB2



Biu kh hu


Cp AB3



Biu kh hu


Cp AB4



Biu kh hu


Cp AB5



Biu kh hu


Cp AB6



Biu kh hu


Cp AB7



Biu kh hu


Cp AB8



Ph lc C

(Ph lc C ca IEC 60364-3)

(quy nh)

Phn loi iu kin c hc

Thng s mi trng

n v

Cp

AG1/AH1 AG2/AH2 AG3/AH3

3M1

4M1

3M2

4M2

3M3

4M3

3M4

4M4

3M5

4M5

3M6

4M6

3M7

4M7

3M8

4M8

Rung ng tnh ti, hnh sin

Bin dch chuyn

mm 0,3 1,5 1,5 3,0 3,0 7,0 10 15

Bin gia tc

m/s 1 5 5 10 10 10 30 50

Di tn Hz 2-9 9-200 2-9 9-200 2-9 9-200 2-9 9-200 2-9 9-200 2-9 9-200 2-9 9-200 2-9 9-200

Rung ng



khng tnh ti, k c xc

Ph p tuyn xc loi L ()

m/s2 40 40 70 - - - - -

Ph p tuyn xc loi I ()

m/s2 - - - 100 - - - -

Ph p tuyn xc loi II ()

m/s2 - - - - 250 250 250 250

CH THCH: = gia tc ln nht

Ph loi L Thi gian 22 ms

Ph loi I Thi gian 11 ms

Ph loi II Thi gian 6 ms

Hnh C.1 - Kiu ph p tuyn ca xc

(ph p tuyn xc "cc i" bc nht)

Ph lc D

(Ph lc D ca IEC 60364-3)

(quy nh)

Phn loi mi trng rng

Loi mi trng iu kin kh hu Tnh cht c nh hng v

ha hc v c hc a

I AB5

3K3

AF2/AE1

3C2/3S1

II

AB4

3K5, nhng nhit khng kh pha cao gii hn + 40 oC

AF1/AE4

3C1/3S2

III AB7

3K6

AF2/AE5

3C2/3S3

IV AB8 AF3/AE6



4K3 3C3/3S4 a Trong mi , dng th nht ch ra m ca cp theo bng 51A.

Dng th hai ch ra m ca cp theo TCVN 7921-3-0 (IEC 60721-3-0)

CH THCH: Mi trng rng l mi trng ca phng hoc v tr khc trong thit b c lp t hoc s dng.

Ph lc E

(tham kho)

Dng in trong dy dn bo v cho php i vi thit b

b sung thng tin cho iu 516, IEC 61140:2001 quy nh dng in trong dy dn bo v v cc gii hn ca chng nh di y.

CH THCH: Cc iu t 7.5.2 n 7.5.2.5 c ly t IEC 61140:2001.

7.5.2 Dng in trong dy dn bo v

Phi c cc bin php trong h thng lp t v trong thit b ngn nga dng in trong dy dn bo v b vt qu lm nh hng n an ton hoc s dng bnh thng ca h thng lp t in. Phi m bo s tng thch i vi cc dng in tt c cc tn s cung cp cho thit b v c to ra t thit b.

7.5.2.1 Yu cu ngn nga dng in trong dy dn bo v b vt qu ca thit b s dng dng in

Yu cu i vi thit b in, trong iu kin lm vic bnh thng, gy ra dng in chy trong dy dn bo v phi cho php s dng bnh thng v tng thch vi cc yu cu bo v. Cc yu cu 7.5 (xem IEC 61140) c tnh n thit b c thit k c cp in bng h thng phch cm v cm hoc bng mi ni c nh hoc trong trng hp l thit b tnh ti.

7.5.2.2 Gii hn xoay chiu ln nht ca dng in trong dy dn bo v ca thit b s dng dng in

CH THCH: Phng php o dng in trong dy dn bo v c tnh n thnh phn tn s cao c trng s theo IEC 60479-2, ang c xem xt bi TC 108.

Php o phi c thc hin trn thit b nh c giao.

Cc gii hn di y c p dng cho thit b c cp ngun tn s danh nh bng 50 Hz hoc 60 Hz.

a) Thit b s dng dng in dng cm c lp cng h thng phch cm v cm mt pha hoc nhiu pha n v bng 32 A. Gi tr gii hn c nu Ph lc B ca IEC 61140.

b) Thit b s dng dng in u ni c nh v thit b tnh ti s dng dng in, c hai u khng c bin php c bit cho dy dn bo v hoc thit b s dng dng in dng cm c lp vi h thng phch cm v cm mt pha hoc nhiu pha, c gi tr danh nh ln hn 32A. Gi tr gii hn c nu Ph lc B ca IEC 61140.

c) Thit b s dng dng in u ni c nh c thit k ni vo dy dn bo v tng cng theo 7.5.2.4 (xem IEC 61140). Ban k thut v sn phm cn quy nh gi tr ln nht i vi dng in trong dy dn bo v, trong bt k trng hp no cng khng c vt qu 5% dng in vo danh nh trn mi pha.

Tuy nhin, ban k thut v sn phm phi cn nhc xem, v l do bo v, c th cung cp thit b bo v dng d trong h thng lp t c khng, trong trng hp c th th dng in trong dy dn bo v phi tng thch vi bin php bo v c cung cp. Mt cch khc, phi s dng my bin p c cun dy ring r v c t nht mt vch ngn bo v n gin.

7.5.2.3 Dng in mt chiu trong dy dn bo v



Trong s dng bnh thng, thit b xoay chiu khng c to ra dng in c thnh phn mt chiu trong dy dn bo v lm nh hng n chc nng ng ca thit b bo v dng d hoc thit b khc.

CH THCH: Cc yu cu lin quan n dng in s c c thnh phn mt chiu ang c xem xt.

7.5.2.4 D phng trong thit b trong trng hp ni vi mch dy dn bo v tng cng i vi dng in trong dy dn bo v qu 10 mA

Phi c d phng di y trong thit b s dng dng in:

- u ni c thit k ni dy dn bo v, kch c t nht l 10 mm2 i vi dy ng hoc 16 mm2 i vi dy nhm.

- u ni th hai c thit k ni dy dn bo v c cng mt ct vi mt ct ca dy dn bo v bnh thng ni dy dn bo v th hai vi thit b s dng dng in.

7.5.2.5 Thng tin

i vi thit b c thit k ni c nh vi dy dn bo v tng cng, gi tr ca dng in trong dy dn bo v phi do nh ch to cung cp trong ti liu v phi c ch th trong hng dn lp t rng thit b phi c lp t nh quy nh 7.5.3.2 (xem IEC 61140)

Bn sao Ph lc B t IEC 61140

(tham kho)

Gi tr gii hn xoay chiu ln nht ca dng in trong dy dn bo v trong cc trng hp 7.5.2.2 a) v 7.5.2.2 b)

7.5.2.6 Gi tr gii hn xoay chiu ln nht ca dng in trong dy dn bo v trong cc trng hp 7.5.2.2 a) v 7.5.2.2 b)

Cc gi tr ny ban k thut v sn phm xem xt ngn nga dng in trong dy dn bo v b vt qu v cung cp phi hp gia thit b in v bin php bo v bn trong h thng lp t in.

Ban k thut v sn phm c khuyn khch s dng cc gi tr thc t thp nht ca cc gii hn dng in trong dy dn bo v.

Ban k thut v sn phm cn bit rng vic chp nhn cc gii hn khng vt qu cc gi tr di y c th trnh cho thit b bo v dng d nh khng mong mun trong hu ht cc trng hp.

Gi tr i vi 7.5.2.2 a)

Gi tr i vi thit b s dng dng in dng cm lp cng h thng phch cm v cm mt pha hoc nhiu pha n v bng 32 A.

Dng in danh nh ca thit b Dng in ln nht trong dy dn bo v

< 4 A 2 mA

> 4 A nhng 10 A 0,5 mA/A

> 10 A 5 mA

Gi tr i vi 7.5.2.2b)

Gi tr i vi thit b s dng dng in u ni c nh v thit b tnh ti s dng dng in, c hai u khng c bin php c bit cho dy dn bo v hoc thit b s dng dng in dng cm lp vi h thng phch cm v cm mt pha hoc nhiu pha, c gi tr danh nh ln hn 32 A.

Dng in danh nh ca thit b Dng in ln nht trong dy dn bo v

< 7 A 3,5 mA

> 7 A nhng 20 A 0,5 mA/A

> 20 A 10 mA

Ph lc F



(tham kho)

IEC 60364 - Phn 1 n 6: Kt cu li

Bng F.1 - Quan h gia cc phn kt cu li v phn ban u

S xut bn theo kt cu

Tiu chun c nm trong phn mi

Tn gi Nm xut bn

Sa i (nm)

Phn 1

Nguyn tc c bn

IEC 60364-1

Xut bn ln 3

H thng lp t in ca cc ta nh Phn 1: Phm vi p dng, i tng v nguyn tc c bn

1992

IEC 60364-2-21 TR3

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 2: nh ngha Chng 21: Hng dn cc thut ng chung

1993

IEC 60364-3

Xut bn ln 2

H thng lp t in ca cc ta nh Phn 3: nh gi cc c tnh chung

1993 Sa i 1 (1994)

Sa i 2 (1995)

Phn 4-41

Bo v an ton Bo v chng in git

IEC 60364-4-41

Xut bn ln 3

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 41: Bo v chng in git

1992 Sa i 1 (1996)

Sa i 2 (1999)

IEC 60364-4-46

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 46: Cch ly v ng ct

1981

IEC 60364-4-47

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 47: p dng cc bin php bo v an ton Mc 470: Qui nh chung Mc 471: Bin php bo v chng in git

1981 Sa i 1 (1993)

IEC 60364-4-481

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 48: Chn bin php bo v l hm s ca cc nh hng t bn ngoi Chng 481: Chn cc bin php bo v chng in git lin quan n cc nh hng t bn ngoi

1993

Phn 4-42

Bo v an ton Bo v chng

nh hng v

nhit

IEC 60364-4-42

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 41: Bo v chng nh hng v nhit

1980

IEC 60364-4-482

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 48: Chn bin php bo v l hm s ca cc nh hng t bn ngoi Mc 482: Bo v chng chy.

1982

Phn 4-43

Bo v an ton Bo v chng qu dng

IEC 60364-4-43

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 43: Bo v chng qu dng

1977 Sa i 1 (1997)

IEC 60364-4- H thng lp t in ca cc ta 1977 Sa i 1 (1998)



473

Xut bn ln 1

nh Phn 4: Bo v an ton Chng 47: p dng cc bin php bo v an ton Mc 473: Bin php bo v chng qu dng.

Phn 4-44

Bo v an ton Bo v chng nhiu in

t v nhiu in

p

IEC 60364-4-442

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 44: Bo v chng qu p Mc 442: Bo v h thng lp t in h p khi s c gia h thng cao p v t

1993 Sa i 1 (1995)

Sa i 2 (1999)

IEC 60364-4-443

Xut bn ln 2

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 44: Bo v chng qu p Mc 443: Bo v chng qu p c ngun gc t khng kh hoc do ng ct

1995 Sa i 1 (1998)

IEC 60364-4-444

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 44: Bo v chng qu p Mc 444: Bo v chng nhiu in t (EMI) trong h thng lp t ca ta nh

1996

IEC 60364-4-45

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 45: Bo v chng thp p.

1984

Phn 5-51

La chn v lp t cc thit b in Qui tc chung

IEC 60364-5-51

Xut bn ln 3

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 51: Qui tc chung

1997

IEC 60364-3

Xut bn ln 2


1993 Sa i 1 (1994)

Sa i 2 (1995)

Phn 5 -52

La chn v lp t

thit b in H thng i

dy

IEC 60364-5-52

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 52: H thng i dy

1993 Sa i 1 (1997)

IEC 60364-5-523

Xut bn ln 2

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 52: H thng i dy Mc 523: Kh nng mang dng

1999

Phn 5-53

La chn v lp t

thit b in

Cch ly, ng ct v iu khin

IEC 60364-4-46

Xut bn ln 1 (tr iu 461 nm trong phn 4-41)

H thng lp t in ca cc ta nh Phn 4: Bo v an ton Chng 46: Cch ly v ng ct

1981

IEC 60364-5-53

Xut bn ln 2

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 53: Thit b ng ct v iu khin

1994

IEC 60364-5- H thng lp t in ca cc ta 1997



534

Xut bn ln 1

nh Phn 5: La chn v lp t thit b in Chng 53: Thit b ng ct v iu khin Mc 534: Thit b dng bo v chng qu p

IEC 60364-5-537

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 53: Thit b ng ct v iu khin Mc 537: Thit b dng cho cch ly v ng ct

1981 Sa i 1 (1989)

Phn 5-54

La chn v lp t

thit b in B tr ni t

IEC 60364-5-54

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 54: B tr ni t v cc dy bo v

1980 Sa i 1 (1982)

IEC 60364-5-548

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Mc 548: B tr ni t v lin kt ng th dng cho h thng lp t cng ngh thng tin

1996 Sa i 1 (1998)

Phn 5-55

La chn v lp t

thit b in Thit b

khc

IEC 60364-5-551

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 55: Thit b khc Mc 551: My pht in h p

1994

IEC 60364-5-559

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 55: Thit b khc Mc 559: n in v h thng chiu sng

1999

IEC 60364-5-56

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 5: La chn v lp t thit b in Chng 56: Dch v an ton

1980 Sa i 1 (1998)

IEC 60364-3

Xut bn ln 2


1993 Sa i 1 (1994)

Sa i 2 (1995)

Phn 6-61

Kim tra v th nghim Kim tra ban u

IEC 60364-6-61

Xut bn ln 1

H thng lp t in ca cc ta nh Phn 6: Kim tra Chng 61: Kim tra ban u

1986 Sa i 1 (1993)

Sa i 2 (1997)

Bng F.2 Quan h gia cch nh s iu mi v c

S iu kt cu li

Trc y, nu c khc

bit

Nm xut bn gc

Tn gi iu

Phn 1

12 3.2 1993 Ti liu vin dn

Ph lc B 21 1993 nh ngha, hng dn cc thut ng chung



B1.0 21.0 1993 Phm vi p dng

B1.1 21.1 1993 Cc c tnh ca h thng lp t

B1.2 21.2 1993 in p

B1.3 21.3 1993 in git

B1.4 21.4 1993 Ni t

B1.5 21.5 1993 Mch in

B1.7 21.7 1993 Thit b khc

B1.8 21.8 1993 Cch ly v ng ct

Phn 4-41

410 400.1 1992 Gii thiu

410.2 Mi Ti liu vin dn

410.3 470 p dng cc bin php bo v chng in git

Phn 4-42

421 422 1980 Bo v chng chy

422 482 1982 Bo v chng chy nhng ni c cc ri ro c bit

422.1 482.0 1982 Qui nh chung

422.2 482.1 1982 iu kin s tn khi ta nh trong trng hp khn cp

422.3 482.2 1982 Bn cht ca vt liu gia cng hoc lu tr

422.4 483.3 1982 Vt liu c kt cu d chy

422.5 482.4 1982 Kt cu chy lan

Phn 4-43

431 473.3 1977 Cc yu cu theo tnh cht ca mch in

431.1 473.3.1 1977 Bo v ca dy pha

431.2 473.3.2 1977 Bo v ca dy trung tnh

431.3 473.3.3 1977 Ngt v u ni ti dy trung tnh

433.1 433.1 1977 S kt hp gia cc dy dn v c cu bo v chng qu ti

433.2 473.1.1 1977 Lp c cu bo v chng qu ti

433.3 473.1.2 1977 Khng lp c cu bo v chng qu ti

433.4 473.1.3 1977 Lp hoc khng lp c cu bo v chng qu ti trong h thng IT

433.5 473.1.4 1977 Cc trng hp khuyn co khng lp c cu bo v chng qu ti v l do an ton

433.6 473.1.5 1977 Bo v chng qu ti cho dy dn mc song song

434.1 434.2 1977 Xc nh dng in ngn mch k vng

434.2 473.2.1 1977 Lp c cu bo v chng ngn mch

434.3 473.2.3 1977 Khng lp c cu bo v chng ngn mch

434.4 473.2.4 1977 Bo v chng ngn mch dy dn mc song song



434.5 434.3 1977 c tnh ca thit b bo v chng ngn mch

Phn 4-44

440 1993, 1995 v

1996 tng ng

Gii thiu Bin son t li gii thiu ca phn 4-442 (mt phn), 4-443 v 4-444 (mt phn)

440.1 442.1.1 1993 Phm vi p dng

440.2 442.1.4 1993 Ti liu vin dn

445 45 1984 Bo v chng thp p

445.1 451 1984 Yu cu chung

Phn 5-51

510 51 1997 Gii thiu

511 320.1 1993 iu kin lm vic v cc nh hng t bn ngoi

320.2

Phn 5-52

Bng 52-1 52F 1993 Chn h thng i dy

Bng 52-2 52G 1993 Lp t h thng i dy

Bng 52-3 52H 1993 V d v cc phng php lp t

Bng 52-4 52-A 1993 Nhit lm vic ln nht i vi cc loi cch in

523.5 523.4 1993 Nhm c nhiu hn mt mch in

523.6 523.5 1993 S lng dy dn mang ti

523.7 523.6 1993 Dy dn mc song song

523.8 523.7 1993 S thay i iu kin lp t dc theo tuyn lp t

Bng 52-5 52J 1993 Din tch mt ct nh nht ca dy dn

Ph lc C Ph lc B 1993 Cng thc biu din kh nng mang dng

Ph lc D Ph lc C 1993 nh hng ca dng in hi ln h thng ba pha cn bng

Phn 5-53

534.3 535 1997 C cu bo v chng thp p

535 539 1981 S phi hp ca cc c cu bo v khc nhau

535.1 539.1 Phn bit gia cc c cu bo v qu dng

535.2 539.2 S kt hp cc thit b bo v bng dng d

535.3 539.3 Phn bit gia cc thit b bo v bng dng d

536 46 1981 Cch ly v ng ct

536.0 460 1981 Gii thiu

536.1 461 1981 Qui nh chung

536.2 462 1981 Cch ly

536.3 463 1981 Ngt in bo dng v c



536.4 464 1981 Chuyn mch khn cp

536.5 465 1981 Chuyn mch chc nng

Phn 5-54 CH THCH: khng c thay i v cch nh s iu

Phn 5-55

550.2 551.1.2 1994 Ti liu vin dn

559.2

556 56 1980 Dch v an ton

556.1 352 1980 Qui nh chung

556.4 562 1980 Ngun an ton

556.5 563 1980 Mch in

556.6 564 1980 Thit b s dng

556.7 565 1980 Yu cu c bit i vi dch v an ton c cc ngun khng c kh nng lm vic song song

556.8 566 1980 Yu cu c bit i vi dch v an ton c cc ngun c kh nng lm vic song song

Phn 6-61 CH THCH: Khng c thay i v cch nh s iu

TH MC TI LIU THAM KHO

TCVN 6988:2006 (CISPR 11:2004), Thit b tn s rai dng trong cng nghip, nghin cu khoa hc v y t (ISM). c tnh nhiu in t - Gii hn v phng php o.

CISPR 12:1997, Vehicles, motorboats and spark-ignited engine-driven devies - Radio disturbance characteristics - Limits and methods of measurement (Phng tin giao thng ng b, xung my v cc thit b khi ng ng c bng cch nh la - c tnh nhiu radi - Gii hn v phng php o)

TCVN 7600:2010 (CISPR 13:2009), Gii hn v phng php o c tnh nhiu rai ca my thu thanh v thu hnh qung b v cc thit b i km.

TCVN 7492-1:2010 (CISPR 14-1:2009), Tng thch in t - Yu cu i vi thit b gia dng, dng c in v cc thit b tng t - Phn 1: Pht x.

TCVN 7492-2:2010 (CISPR 14-2:2008), Tng thch in t - Yu cu i vi thit b gia dng, dng c in v cc thit b tng t - Phn 2: Min nhim - Tiu chun h sn phm.

TCVN 7186:2002 (CISPR 15:1999), Gii hn v phng php o c tnh nhiu tn s rai ca thit b chiu sng v thit b tng t.

TCVN 7189:2002 (CISPR 22:1997), Thit b cng ngh thng tin - c tnh nhiu tn s rai - Gii hn v phng php o.

TCVN 7447-5-53:2005 (IEC 60364-5-53:2002), H thng lp t in ca cc ta nh - Phn 5-53: La chn v lp t thit b in - Cch ly, ng ct v iu khin

IEC 60479-2:1987, Effects of current passing through the human body - Part 2: Special aspects - Chapter 4: Effects of alternating current with frequencies above 100 Hz - Chapter 5: Effects of special waveforms of current - Chapter 6: Effects of unidirectional single impulse currents of short duration (nh hng ca dng in i qua c th ngi - Phn 2: Kha cnh c bit - Chng 4: nh hng ca dng in xoay chiu c tn s ln hn 100 Hz - Chng 5: nh hng ca dng sng dng in - Chng 6: nh hng ca dng in xung thi gian ngn n n hng).



MC LC

Li ni u

Li gii thiu

510 Gii thiu

510.1 Phm vi p dng

510.2 Ti liu vin dn

510.3 Quy nh chung

511 S ph hp vi tiu chun

512 iu kin lm vic v nh hng bn ngoi

512.1 iu kin lm vic

512.2 nh hng bn ngoi

513 Kh nng tip cn

513.1 Quy nh chung

514 Nhn bit

514.1 Quy nh chung

514.2 H thng i dy

514.3 Nhn bit dy trung tnh v dy bo v

514.4 Thit b bo v

514.5 S in

515 Ngn nga nh hng bt li ln nhau

516 Bin php lin quan n dng in trong dy dn bo v

516.1 My bin p

516.2 H thng truyn tn hiu

Ph lc A (tham kho) - Danh mc tm tt cc nh hng bn ngoi

Ph lc B (tham kho) - S ph thuc ln nhau gia nhit khng kh, m khng kh tng i v m khng kh tuyt i

Ph lc C (quy nh) - Phn loi iu kin c hc

Ph lc D (quy nh) - Phn loi mi trng rng

Ph lc E (tham kho) - Dng in trong dy dn bo v cho php i vi thit b

Ph lc F (tham kho) - IEC 60364 - Phn t 1 n 6: Kt cu li

Th mc ti liu tham kho

7.tcvn 7447-5-51_2010

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