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1、M 3404583 _ Oa0515i 2 COVER SHEET ISSUE: First - 7980-05-14 _ _ _ _ _ _ EUR.OPEAN COMMITTEE FOR ELECTXOTECHNICAL STANDARDIZATIOT? CENELEC HARMONIZATION DOCUMENT HD 384 . . 4 . 41. - ELECTRICAL INSTALLATIONS OF BUILDINGS . PART 4: PROTECTION FOR SAFETY CHAPTER 41 : PROTECTION AGAINST ELECTRIC SHOCK (
2、IEC 364-4-41 modified) - This Harmonization Document was adoptedby CEhTIIEC on The National Electrotechnical Committees, members of CENELEC, in 1378-09-29. A B CH D BK E . F I IBL m .P s. -. : SF UK : Austria o Belgium 2 Switzerland : Germany : Denmark : Spain : France . : Italy : Ireland . : Luxemb
3、urg : Norway : Netherlands : Portugal : Sweden : Finland . : United Kingdom are obliged, in accordance with the CENELEC Internal Regulations, to Zmplcment this Harmonization Document in their respective -_ - c- country by .e- - - Issuing harmonized national steserved to national . .- .member . organ
4、izations C I , .- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -,-,- = 3 4 0 1 3 o
5、oosiw 4 m Addendum to HD 384.4.41 March 1980 The f ollowiiig national committees have declared Fs 1960 No.8, clause 6 g does not allow min equipotential bonding. The FS 1960 hT0.8, clause 6 d does not allow TT systems. The IKFS 1960 No.8, clauses 6 h and 13 g requires the voltage of the secondary ci
6、rcuit t o be limited t o li? V . Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -,-,
7、- O 3404583 0005Lb3 b O 4; b . HARMON1 ZATION DOCUBIENT HI) 354.4.41 DOCU3IENT D HAIIblON I SAT ION February 1980 HARMONIS I ERUN GSDOKLIBIENT Date of approval: 1978-09-2P . . UDC: 621.316.17-78.001,2 614.825.001.2-.- - - Keywords: Electrical installation - safety - .electric shock - electric shock
8、in normal service - electric shock -in .case of a fault - live- parts. - emosed conductive part-s - extraneous -conductive. parts - insulation - barriers - enclosures - obstacles I L bounding - earthing - protective conductor - residual current . prbtective d e v i c e E s - t r . n s f o r m e r -
9、1 saietg , ion Document are provided for guidance only i n Appendix III. 6. k c t i o n a i extra low voltape In efiecting a transition from the former Harmonization Docments RD.223 anG HD.224, provision needs t o be made for this combined prokective measure which was specified i n those documents c
10、ommittees, but is not included in the IEC Reference Document although it should appear i n a later IEC Publication. Accordingly the current text of this measure as stated i n IEC document 64(Secretariat)243 is -reproduced air Appendix .IiJ for information. national committees should exercise discret
11、ion in adopting this measure, and therefore applied for some national Since soine changes i n the text may still be made by IEC/TC,G%, Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not fo
12、r Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 39045e3 0005166 I W - 4 - 4 . 4 0 0 . 1 . . 400.1 . I FROTI“CTI0N FOR S“Y Introduction Several C W L E C harmonization documents based on IEC Publication 364, Part, 4, Chapters 41 - 48, w i l l sp
13、ecify, requirements for protection of persons, livestock and property. Tliis harmonization document based on IEC:364, Chapter 41, (1977) specifies measures for protection against . -. electric shock. Further harmonization documents dealing with the application and Co-ordimtion of measures for protec
14、tion for safety, and qualifications i n relation to particular classes of external influences, will be prepared and are expected t o be based on IEC:364, Chapters 47 and 48, both of which are under consideration (1977) by IEC/TC . 64. 400.1.2 Protective measures may be applicable t o an entire insta
15、llation, t o a part, or t o an item of equipment, 4,CiO. 1 3 The order i n which the protective measures are specified does not imply any relative importance, 41 l?R“ECTI:ON AGAIEST I3lXCTRIC SHOCK 410.1 General. Protection against electric shock shall be provided by application of the appropriate m
16、easures specified i n Sec ti ons : - 411 for protection both i n normal service and in case of a fault, or - 412 for protection in normal service, and - 413 for protection in case of a fault, - as required by HD. . and HD. b * Awaiting IEC:364, Chapters 47 and 48. _. Copyright European Committee for
17、 Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 41 I 411 . I 421 1 . 1 2 , I * . 5 Protection apainst electric
18、shock both i n normal service and in case of a fault (Protection agaiiist both direct contact- - and indireci; contact 1 . -Protection by safety extra low voltaqe Note: Particular requir emen.ts, for d. c . sys tems are under - consideration, - - Protection agsinst electric shock is deemed t o be en
19、sured when: - - Lhenminal voltage is not higher than the upper limit: of Voltage Band I accordipg t o ID 19.3, and * -. - the supply is from one of the safety sources listed i n . sub-clause . 411.1.2, . .- and . . - the conditions- of .sub-clause. kl.l3are fuifilied. - - - - . - - ._ - - . Note I:
20、If any of the requirements of Sub-clauses 411.1.2 and 411.1.3 is not satisfied, the system-is-deemed not t o be protected by safety estra-low voltage, It uay be known as a functional extra-lori voltage system and be subject t o the relevant requirements specified i n HD. .*. (*). - Note 2 : I f the
21、system is supplied from a higher voltage system by other eqpment such as autotranafoimers, potentio- meter 8, semi-c onduc t o r det5.c e s ,- etc , -(;he-. ou-iput .circuit is deemed t o be an eutenBion of -hie input circuit aad should be profected by tho protective measures applied to the input ci
22、rcuit, may be req-ired as specified in ED. . *. . . (2if). Note 3: For certaln external influences lover vol.tage 3.imi ts 411 I. 2 Safety sources Sli. 1 . 2 . 1 A safety isola-bing transformer. Note I: The use of a particularly high t e s t voltage or - the interposition of an esrthed screen sepamt
23、ng the primry f r o m he secondary wioding are recognized as means of ensuring t i e necessary high degree of isolation. account f o r the rules in this harmonization documen4 Safety extra-lo; voltage circ indirect contact, . 413.1e5+5 . 4) 1 where : U = Convcntional voltage l i m i t U , . , (sub-c
24、lause 413u1.1.4) o r touch voltage l i m i t according t o sub-clause 413.1.1.5 = operating current of.thc protective device in the appropriate disconnecting time stated i n sub-clause 413.i. I * Awaiting IEC:364, Chapter 54. Copyright European Committee for Electrotechnical Standardization Provided
25、 by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 413*1 7 413 1 . 7 . 1 413. 1*7.2 413.1 7 3 e13 I . 7 . r, 413 1 . 8 Where fuses are used, it is sufficien
26、t t o confirm that the condition is fulfilled f o r the conventional voltage l i m i t and for the current ensuring.the operation of the fuse within 9 S . Reqiurements f o r protective devices Overcu_rrent protective derices - _. 1 . m e operating characteristics of overcurrent protective devices de
27、fined i n the following publications have been taken ink0 account for the rules in this himuoniaation document. L - Fuses f o r domestic and simila cm.16. - Low-voltage fuses mc : 269-1 IEC : 269-2 purposes IEC : 269-3 - - Miniature fuses IEC : 127 - Miniature circuit breakers cm:1g - Circuit breake
28、rs IEC : 157 Residual current protective devices I3.e operaking characteristics of residual current devices deined in CEE:27 (1971) have been taken into account gor the rules in this harmonization document. The use of residual current protective devices as a, sole =ans of protection w i t h o u t .a
29、 protective conductor is not permitted. (1955) This does not preclude the use of residual current protective devices having a nominal operating residual current not. exceeding 30 mA for the purpose of increasing safeiy especially when using Class O equipment o r unreliably earthed eq-dpment. Fault v
30、oltave sensitive protective dedces (Under consideration) Insulation monitoring devices (Under consideration). - this insulating barrier - shallbe removable only by use-of a tool. Conduc-bive parts enclosed i n the insulating enclosure shall not be connected t o a protective condiictor. provision *y
31、be made for connecting protective conductors which necessarily run through the enclosure i n orce, t o serve other items of electrical equipment whose supply circuit also runs through th enclosure. Inside the enclosure, any such conductors an6 their tenninals shall be insulated as though. they were
32、l i x v parts and their terminals shall be appropriately marked. Ekposed conductive paris and intermediate paris shall not be connected-to a protective conductor unless specific provision for this is made i n the specifications for the . construction of the equipment concerned. Bowe.t-er, The enclos
33、ure shall not adversely affect the opera-l;ion of the equipment protected i n this way. The installation of eqdpment mentioned in 413.2.1e1 (fixing, connection of conductors etc. ) shall be effected i n such a way as not t o impair the protection afforded in compliance With the spedffication for the
34、 construction of %he equipment. . * Awaiting EC:g64, P u t 6. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted
35、without license from IHS -,-,- 413 0 3 413.3.1 Protection by non-conducting location - Note: This protective measure is intended t o prevent simultaneous contact with ?arts which may be at different potential through.failure of the basic insulation of live parts. The use of Glass O equipment is reco
36、gnised if a l l the following condi ti ons are fulfilled. Expose2 conductive parts shall be arranged so that under ordinary circumstances persons w i l l not come into simultaneous contact with: - two exposed conductive p a t s , o r 413.3.2 - an exposed conductive part and any-extraneous - conducti
37、ve part, i f these parts are liable t o be at different potential though failure of the basi-c insulation of live parts. In a non-conducting location there shall be no protective c oiiduc t o r . Sub-clause 413.3.1 is fulfilled i f the location has an insulating floor and walls and one or more of th
38、e following arrangements (a) - (c) applies: Relative spacing of exposed conductive parts and of extraneous conductive parts as well as spacing of exposed conductive parts. distance between two parts is not I.ess than 2 m; this distance may be reduced t o 1.25 m out of the zone of arms reach. This sp
39、acing i s sufficient i f the I Interposition of.effective obstacles between exposed conduc tive parts and extraneous conductive parts. Such obstacles are sufficiently effective i f they extend the distances t o be surmounted t o the values state6 ia pasagraph (a) above. or t o exposed conductive par
40、ts; as far as possible they shall be of insulating material. They shall not be connected t o earth 1nsulai;ion o r insulating arrangement o extraneous conductive parts. mechanical strength and be able t o withstaad a test voltage of at ieast 2000 V. exceed 1 mA i n normal conditions of use. The insu
41、lation shall be of sufficient Leakage current shall not - Note: See illu.strations of these arrangements in Appendis II of this harmonization document . Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User
42、=Japan, IHS Not for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -,-,- nn 413. 3. 4 The resistance of insulating floors and walls at every point of measurenent. under the conditions specified i n liD .(*e) shall be not less -ban: - 50 Irfiwhere the
43、supply voltage. does not exceed 500 V, or . - - Note: 100 khirhere the supply voltage exceeds 500 V . I- If at any point the resistance is less than the specified value the floors and w a l l s w e deemed t o be extraneous conductive parts %r the purposes of protection against shockr 413.3.5 The arr
44、angements made shall be p e r m e n t and it shall not be . _ L . possible t o make theu ineffective, protection where he use of mobiie or portable equipment is envi S age d . Note 1 : -%ey shall also ensure - - Attention is drawn t o the risk khat where electrical installations are not under effect
45、ive super 7,25 m a 2 - - Illuskration of arrangements (b) and (e) b C extraneous conductive -obstacle . or insulate insulating floor ._ extraneous conductive -obstacle . or insulate insulating floor ._ 413.4 On 4.13.4.1: Protection by earth-free local equipotential bonding * part Use ofClass O1 appl
46、iances with the terminal of the exposed conductive parts connected to the equipotential bonding conductor is permitted in these cases .- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not
47、for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -,-,- - 3 4 - 3404583 000517b T E T U“. r, Prote c t ion bv ele ctsical senaration On 4 1 3 . 5 . 1 . . 3 : Where practicable, fixed wiring conductors i n insulating conduit o r cables wi f o r esampl
48、e, the good condition of the flexible cables, and the measurement of the earth fault current of the installation through a resistance of 2000 ohms. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 10/05/2008 21:27:20 MDTNo reproduction or networking permitted without license from IHS -