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1、I N FORMAT I ON CENELEC I SHEET I HO 384.7.706 S 1 Rue de Stassart. 35 - 1050 Bruxelles Tl.: (+ 32 2) 519.68.71 - Fax: (+ 32 2) 519.69.19 1991-04-30 I April 1991 Teletex 206 210097 - CENCEL - TX 172210097 I s sue 1 Electrical installations of buildings Part 7: Requirements for special installations
2、or locations Section 706 - Restrictive conducting locations Installations lectriques des b t imen t s Septieme partie: Regles pour les installations et emplacements spciaux Section 706 - Enceintes conductrices exigues Elektrische Anlagen von Gebuden Teil 7: Bestimmungen fr Betriebsstatten, Raume und
3、 Anlagen besonderer Art Hauptabschnitt 706 - Begrenzte leitfhige Raume RD: I E C 364-7-706:1983; IEC/TC 64 (not appended) j o i 1 0 I t-l This Harmonization Document consists of the following: 10- i 9 - Title Page 1 4 Related to Directive: - I - common modifications prepared by CENELEC Subcommittee
4、SC 64A / J = i1 i date of ratification : 1969-09-11 date o f announcement : 1989-12-01 date of latest publication : 1991-11-01 date o f withdrawal : 1991-11-01 LIST OF NATIONAL STANDARDS IS GIVEN OVERLEAF -e Copyright European Committee for Electrotechnical Standardization Provided by IHS under lice
5、nse with CENELECLicensee=Deere & Co Categories/9999663103, User=Zhang, Kai Not for Resale, 08/08/2007 20:36:26 MDTNo reproduction or networking permitted without license from IHS -,-,- m 3404583 0016597 b m P H A R M O N I Z E D N A T I O N A L STANDARDS HO 3 8 4 . 7 , 7 0 6 S 1 : 1 9 9 1 AT : OVE-E
6、N 1 , Teil 4 ( 6 5 ) / 1 9 8 5 BE : CH : D E : OK : ES : F I : F R : G8 : GR : I E : IS : I T : LU : N L : NO : PT : SE : Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECLicensee=Deere & Co Categories/9999663103, User=Zhang, Kai Not for Res
7、ale, 08/08/2007 20:36:26 MDTNo reproduction or networking permitted without license from IHS -,-,- I 3404583 00LbSB B - - 1 HARMONIZATION DOCUMENT a DOCUMENT DHARMONISATION HO 384.7.706 S1 HARMONISIERUNGSDOKUMENT April 1991 UDC 621.316.176 Descriptors: Electrical installation, SELV, electrical separ
8、ation, supplemenary equipotential bonding, residual current protection device, class I I ENGLISH VERSION ELECTRICAL INSTALLATIONS OF BUILDINGS PART 7: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS SECTION 706 - RESTRICTIVE CONDUCTING LOCATIONS (IEC 364-7-706:1983, modified) Installations lectr
9、iques des btiments Septime partie: Rgles pour les installations et emplacements spciaux Section 706 - Enceintes conductrices exigues (CE1 364-7-706:1983, modifie) Elektrische Anlagen von Gebuden Teil 7: Bestimmungen fr Betriebsstatten, Raume und Anlagen besonderer Art Hauptabschnitt 706 - Begrenzte
10、leitfhige Raume (IEC 364-7-706:1983, modifiziert) This Harmonization Document was approved by CENELEC on 1989-09-11, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Oocument on a national level. Up-
11、to-date lists and bibliographical references concerning national implementation may be obtained on application to the Central Secretariat or to any CENELEC member. This Harmonization Document exists in three official versions (English, French, German 1 , CENELEC members are the national electrotechn
12、ical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, ItaLy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotec
13、hnique Europaisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, 8-1050 Brussels 1991 Copyright reserved to CENELEC members Ref, No. HD 384.7,706 S1:1991 E res- ! i Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with C
14、ENELECLicensee=Deere & Co Categories/9999663103, User=Zhang, Kai Not for Resale, 08/08/2007 20:36:26 MDTNo reproduction or networking permitted without license from IHS -,-,- Page 2 HD 384.7.706 S1:1991 E 3404583 0016599 T E .i FOREWORD The CENELEC questionnaire procedure, performed for finding out
15、whether or not the International Standard IEC 364-7-706:1983 could be accepted without textual changes, has shown that some CENELEC common modifications were necessary for the acceptance as Harmonization Document. The reference document, together with the common modifications prepared by the CENELEC
16、 Subcommittee SC 64A, Electrical installations of buildings: protection against electric shock, was submitted to the CENELEC members for formal vote. The text of the draft was approved by CENELEC as HD 384.7.706 S1 on 11 September 1989. The following dates were fixed: - latest date of announcement o
17、f the HD at national level - latest date of publication of a new harmonized national standard - latest date of withdrawal of conflicting national standards (doa) 1989-12-01 (dp) 1991-11-01 (dow ) 199 1-1 1-0 1 Copyright European Committee for Electrotechnical Standardization Provided by IHS under li
18、cense with CENELECLicensee=Deere & Co Categories/9999663103, User=Zhang, Kai Not for Resale, 08/08/2007 20:36:26 MDTNo reproduction or networking permitted without license from IHS -,-,- W 3404583 DOlbb00 2 Page 3 HD 384.7.706 S1:1991 ENDORSEMENT NOTICE The text of the International Standard IEC 364
19、-7-706:1983 was approved by CENELEC as a Harmonization Document with agreed common modifications as given below. COMMON MODIFICATIONS Clause 706.1 The word “troit“ is deleted in the first line of the second paragraph of the French text. The following two paragraphs and the following note are added:
20、“The particular requirements of this section do not apply to any location which allow a person freedom of bodily movement to work, enter, and leave the location without physical contraint. The particular requirements of this section apply to fixed equipment in restrictive locations and to supplies f
21、or portable equipment for use in such locations. Note: For electric arc welding operations see HD 407 and HD 427.“ Clause 706,471.2a) The second indent is replaced by: “- electrical separation (Clause 41 3.5) subjected to provision being made for only one item of equipment to be connected to a secon
22、dary winding of the isolating transformer.“ Clause 706.471.2b) The second paragraph is replaced by the following two notes: Note 1: A fluorescent luminaire with built-in step-up (with two windings) transformer supplied at SELV is equally permitted. Note 2: Particular requirements for portable equipm
23、ent other than those detailed under letter a) and b) are under consideration.“ 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 20:36:26 MDTNo reproduction
24、 or networking permitted without license from IHS -,-,- ?aye A i-iD 384.7.706 S1:1991 Clause 706.471.2) Clause 706.471.2.2 Clause 706.471.2.3 3404583 OOlbbOL 4 m I A The following new indent is added: “or by Class II equipment, or by equipment having equivalent insulation, protected by residual curr
25、ent protective device with a rated residual operating current Idn not exceeding 30 mA, provided they have adequate IP degree of protection.“ The clause is replaced by: “Safety sources and isolating sources shall be situated outside the restrictive conducting location, unless they are part of the fix
26、ed installation within a permanent restrictive conducting location as provided by item c of clause 706.471.2. The word “fixed“ is deleted in the first line. 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 20:36:26 MDTNo reproduction or networking permitted without license from IHS -,-,-