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1、Lectrisal InttaLLations o f buildings Part 5 : Selection and erection o f electrical cqu ipment Chapter 54: Earthing arrangements and protective condu et ors installations Blectriques des bd t iments Cinquime partier Choix et mise en elektrischer BetricbsmftteL oeuvre des mat4rielo Lectriquer Chapit
2、re 54r Mises La terre e t conducteurs de protection ELektrische AnLagen von Gebuden TeiL 5 : Auswahl und Errichtung Kdpitel 54s Erdung und Schutrleiter RO: IEC 364-5-54 (1980) ed 1; IECITC 64 (not appended) - Titte Page Related to Directive: - - Common modiffcations prepared by CLCISC-64A _u- - iIU-
3、i-i-c-. date o f ratification : 1987-12-02 date o f announcement : 1988-06-0*1 date o f latest publication : 1988-12-01 date o f withdrawal : 1988-92-01 LST O F NATIONAL STANDARDS IC G N E N VERLAF Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with C
4、ENELECLicensee=Deere F R : G8: GR : IE ; I T : LU : NOS NL : NO : P f : SE : IS : Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=Deere KEY WORDS: Electrical installations of buildings! protective measures f o r indoor installation
5、s; safety requirements; earthing; protective conductors; e l e c t r i c a l safety requirements ELECTRICAL INSTALLATIONS OF BUILDINGS PART 5: SELECTION AND ERECTION O F ELECTRICAL EQUIPPENT CHAPTER 54: EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS i n s t a l l a t i o n s lectriques des bat imen
6、ts Gebuden Cinquime partie: Choix e t mise T e i l 5: Auswahl und Errichtung en oeuvre des matPrieLs i l e c t r i q u e elektrischer BetriebsmitteL Chapitre 54: Mises a La t e r r e e t conducteurs de protection Schutzleiter Elektrische Anlagen von Kapitel 54: Erdung und BODY O F THE H O The Harmon
7、ization Document consists of: -_- - IEC 364-5-54 (1980) ed 1 ; IECITC 64, not appended The English and French versions o f this Harmonization Document are provided by the t e x t o f the iEC publication and the German version is the o f f i c i a l translation o f the IEC text. ALL texts prepared by
8、 CENELEC exist in three o f f i c i a t versions (Engiish, French and German). According t o the CENELEC I n t e r n a l Regulations the CENELEC member National Committees are bound: t announce the existence of this Harmonization Document a t national Levei by o r before 2988-06-01 t o publish their
9、 new harmonized national standard by or before 198-12-M t o withdraw a l l c o n f l i c t i n g national standards by o r before 1988-22-01, Harmonized national standards are Listed on the HD information sheet, which is available from the CENELEC NationaL Committees o r from the CENELEC Central Sec
10、retariat. The CENELEC National Commjttees are the national electrotechnicaL committees o f Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, I t a l y , Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Copyright reserved t o a l l
11、CENELEC members _. . ._ Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=Deere The third paragraph of the second Note is deleted. The sub-clause is replaced by: Metallic water pipe systems may only be used as earth electrodes if the
12、 consent of the distributor of the water is obtained and if suitable arrangements exist for the user of the electrical installation to be warned of any proposed changes ia the water pipe system. The existing Note remains. The Note is deleted. In Table 54A: - the title is modified to read “Convention
13、al minimum cross-sectional areas of earthing conductors: is added; - in the first column of the second line an asterisk (*I - in the third column of the second line the symbols Cu and Fe are replaced by Copper and Galvanized steel respectively; - after the table, the following explanation is added:
14、of a sheath“. *Protection against corrosin may be obtained by means The Sub-clause is deleted. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=Deere & Co Categories/9999663103, User=Zhang, Kai Not for Resale, 08/08/2007 20:32:17 MD
15、TNo reproduction or networking permitted without license from IHS -,-,- CENELEC I l 543.2.4 i - 4 - HD 384.5.54 COMMON MODIFICATIONS The following Note is added to the first paragraph: Note: Calculation in conformity with sub-clause 543.1.1 may be necessary if the choice of cross-sectional areas of
16、phase conductors has been determined by considerations of short-circuit current. In Note 2 the words “IEC Publication 79-8“ are replaced by “European Standard EN 50 014“. In the first paragraph, second sentence, the work “usually“ is deleted. To the Table the following title is added “Relation betwe
17、en cross-sectional areas of protective conductors and phase conductors“. A further sub-clause 543.1.4 is added: Where a protective conductor is common to several circuits, the cross-sectional area of the protective conductor shall be dimensioned so as to correspond to the cross-sectional area of the
18、 largest phase conductor. The following Footnote is introduced with reference to Chapter 52 “For the time being IEC document 64 (Central Off ice) 174“. The following Note is added at the end of this sub-clause: The requirements of letter c) apply only to the connec- tion of external protective condu
19、ctors. The following Note is added after item d): Note: Metallic water pipes do not usually satisfy these conditions. The first sentence of the second paragraph is deleted. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=Deere & Co
20、 Categories/9999663103, User=Zhang, Kai Not for Resale, 08/08/2007 20:32:17 MDTNo reproduction or networking permitted without license from IHS -,-,- I 1 CENELEC CLAUSE 544.1 544.2.1 547.2 H 3404583 U005257 4 = I - 5 - HD 384.5.54 COMMON MODIFICATIONS The Note is replaced by: “When overcurrent prote
21、ctive devices are used for protection against electric shock, the protective conductor should be incorporated in the same wiring system as.the live conductors or in their immediate proximity“. The sentence between brackets, in the fourth line, is deleted. The sub-clause is deleted. Appendix A The wo
22、rds “valid in 1980, the year of issue of the IEC Reference Document (364-5-54)“, are added at the end of the footnote (*l. The words “issued by CIGRE (Confrence Internationale des Grands Rseaux Electriques A haute tension, 112 Boulevard Haussmann, 75008 Paris“ ate added at the end of the footnote (A*). Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=Deere & Co Categories/9999663103, User=Zhang, Kai Not for Resale, 08/08/2007 20:32:17 MDTNo reproduction or networking permitted without license from IHS -,-,-