HD-21.4-S2-1983.pdf
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1、GENERAL SECRETARIAT I SHEET HD 21.4 s2 POLYVINYL CHLORIDE INSULATED CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V - Part 4 : sheathed cables for fixed wiring Conducteurs et cbles isols au polychlorure de vinyle de tension nominale au plus gale 450/750 V. Quatrime Partie : Cbles sous gaine p
2、our installations fixes Verlegung Isolierte Starkstromleitungen mit einer Isolierung aus thermoplastischem Kunct- stoff auf Basis von Polyvinylchlorid (PVC) mit Nennspannungen bis 450/750 i/ - Teil 4 : Mantelleitungen fr feste RD: IEC 227-4 (1979) modified This HD consists of the following: TITLE PA
3、GE Relates to TEXT prepared by CLC TC 20 based on RD COMMON MODIFICATIONS , O . J . L77 73/23/EEC 1973-03-26 r- date of ratification: 198 1- 11- 24 date of announcement: 1983-06-01 date of latest publication: under consideration date of withdrawal: under Consideration .HARMONIZED NATIONAL STANDARDS:
4、 A: B: CH : D : NOS OK : E: F: CR : I: IRL : L : NOS N: NL : P: s: SF : UK : CE-N G E N E R A L Rue Brderode 2, Tel. O! - 511 79 HD*Z14*SZ 83 EeEc- - S E C R E T A R I A T Bte 5 - 1000 BRUXELLES 32 - Telex Cenlec b HD 21.4 S2 E N G L I S H V E R S I Q N UDC 62131521120274503674322-181.100140022 621.
5、316.17-71 Key words: see overleaf , POLYVINYL CHLORIDE INSULATED CABLES of rated -voltages up to and including 450/750 V PART 4: SHEATHED CABLES FOR FIXED WIRING Conducteurs et cbles isols au polychlorure de vinyle de tension nominale au plus gale 450/750 V - (PVC) mit Nennspannungen bis 450/758 W Q
6、uatrime partie: Cbles sous gaine pour installations fixes Verlegung Isolierte Starkstromleitungen mit einer Isolierung aus thermoplastischem Kunst- stoff auf Basis von Polyvinylchlorid Teil 4r Mantelleitungen fr feste BODY OF HD The Harmonization Document consists of: - the text prepared by CENELEC
7、TC 20 based on IEC 227-4 (1979 - 1st e Class 2 for stranded conductors. 2.3.2 Insulation The insulation shall be polyvinyl chloride compound of Type TI1, applied around each conductor. The insulation thickness shall comply with the specified value given i n Part 4 , Table 1, column 3. The insulation
8、 resistance shall be not less than the vlue given i n Part 4 , Table 1, column 8. (*) This cable type is similar to type 227 IEC O1 but has modified requirements - Note Due to lack ofagreement on a colour-code f o r rigid multicore cables, t h i s cable type cannot be considered as harmonised, and n
9、o designation allocated. -,-,- HD*K21.4*S2 83 0 3404583 0003734 7 2.3.3 - 2 - HD 21 S2 PART 4 Assembly of cores The cores shall be twisted together. A centre f i l l e r may be used. 243.4 Inner covering The twisted cores shall be covered by an extruded inner covering consisting of an unvulcanized r
10、ubber or plastic compound. It shall be possible to separate the cores easily. 2.3.5 Sheath The sheath shall be polyvinyl chloride compound of Type TE11 applie? around the inner covering. It shall f i t closely but not adhere to the inner covering. The sheath thickness shall comply with the specified
11、 value given i n Part 4 Table 1, column 5. 2.3.6 Overall diameter . . , The mean overall diameter shall be within the l i m i t s given i n Part 4 Table 1, columns 6 and 7. 2.4 Tests Compliance with the requirements of Part 4 Sub-clause 2.3 s h a l l be checked by inspection and by the tests given i
12、n Part 4 Table II. 2.5 Guide t o use See Appendix 1 t o P a r t 1. Number and nominal -05s sectional area of conductors (mm21 3 4 t Th i ckness i Th icknecs 5 f6 7 Th ickness 1 Mean overal I 2 Class D f conductor (HD 383) 2 x 1.5 2 x 2.5 2 x 4 2 x 6 2 x 10 2 x 16 2 x 25 2 x 35 3 x 1.5 3 x 2.5 3 x 4
13、3 x 6 3 x 10 3 x 16 3 x 25 3 x 35 4 x 1.5 4 x 2.5 4 x 4 4 x 6 4 x 10 4 x 16 4 x 25 4 x 35 5 x 1.5 5 x 2.5 5 x 4 5 x 6 5 x 10 5 x 16 5 x 25 . 5 x 3 5 . 1 2 1 2 1 2 1 2 1 2 2 2 2 1 2 1 2 1 2 1 2 1 2 2 2 2 1 2 1 2 1 2 1 2 1 2 2 2 2 I 2 1 2 1 2 1 2 1 2 2 2 2 - 3 - Table 1 HO 21 S2 PART 4 General data of
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