15 times the cable diameter for single core саЫеэ
12 times the cable diameter for multicore cables
5.4.2 In case of single time bending * for example in front of a terminal - it is permitted to reduct the bending radius by 50%, provided the work 4 made by skilled personnel t o the cable it heated up to 3O°C and the саЫе is bent by means of a template.
Б.Б Clbl, (тоигтьгю) installation
5.5.1 The following approximate values for the distance between brackets apply when cablee are mounted on walls or ceikngs Ixir^onta'fy:
20 times the cable diameter
These distances are also valid between points of support in case of laying on cable racks or inside cable trays. In any case a distance of 80 cm should not be exceeded.
For vertical cable laying on walls higher distances between the brackets are permitted depending on the type of cable and type of brackets. Distances of 1,5m however should not be exceeded.
Single core cables may be laid atone or system wise in bundles (trefoil formation}. A system of bundled cables may be treated as a muhtcore cable. Ir> case of separate laying of single core cables, brackets made of plastic or brackets consisting of non magnetic metals have to be used. Steel brackets may be used if the magnetic circuit is not dosed.
Cables and bundles of cables are to be tightened m such a way that damages in form of pressure marks caused by heat expansion are avoided.
6. Voltage lest on cable olsnis aftet installation
It is recommended to test new cable plants after installation by a d.c* voltage between 5.6kV and 8kV tex at least 15 minutes but not more than 30 minutes
APPENDIX В
Cu f rent-carry И g Capacity
|
1 |
3 |
3 |
4 |
|
No |
Тігпи |
|
TabUJ Quenlftv |
|
1 |
|
general |
|
|
|
|
This wcnpn appbee to th» current-cerrying capacity under both «landed end devilling previa tons provided that the cable e n three-pluiee operation wirh Three cerkductori loaded or one siigle-ccre саЫе in DO operation |
|
|
2 |
|
Basic proyworis |
|
|
МММ M * U Ы • |
Tempera їм ret Bonding Fr Ефіопе у Operating oondftignir |
Maximum permeable operating temperature Motin'tuf» ehofl-circuit tempwature Concentric eerKiictve bonded it both ends Рсі'АСГ ггифіеііиу The tofr. listed rofixJ cweni-carrying сараснее зги h^eed on standard provi«»fine such as - optMftiing ntoiie laying conditions ’ »neironn|«MuF cwtoifioria For deviating operating сопЛЪопа the current currytog cepacetes in the fable ere io be multiplied by appropriate conversion factors, which slub be based on the Mme cokulaiHxt method and operecog condHtone atf uted lor iho cunertvcarrving capacity gtveti m thia clnuee. * |
30*C 2БО*С венг See Appendix 0. Table Bl 1 |
|
3 |
|
|
|
|
3.1 |
|
Cables !ff a»r |
|
|
|
|
Ao lad current-caaryng capacity IR imck* at andiiNJ prou udon* |
See Appendix B. Table Bl |
|
3.1.1 3J.2 3.1.3 |
Operating mode Laying ccndj*i>nt Є nvfrcm mantel СНХКЯТ«ОЛ& |
CoriciriLMMit eporetion lofld factor Froe in rnr Ono mufti-COftf cable bid vingty. Tlvee einfdo-core cables laid tteough-euT ifa enbie length m dose tret of formol bon With Ofiqi lyibrtl only. Protect «in здоігчі direct thvmH retitotton due to тек eiCi Ambient lempcrature, air |
L0 30*C |
•Той agreed between purchaser and manufacturer
APPENDIX В
Current-Carrying Capacity
(continued)
|
1 |
2 |
3 |
4 |
|
No |
Terms |
Require rnacts |
ТаЫЫ Quantify |
|
3.2 |
|
Current carrying capacity tftdtf deviating provisions |
|
|
3.2.1 |
Operating mode |
- |
- |
|
3.2 2 |
Laying coMiton* |
Grouping of catoes on trays and leddots |
|
|
3.2.3 |
Enviontne^ial concMjona |
Ambci'it laniptfratLtfO, as |
1O*-ftO*C |
|
4 |
|
Snort густш |
|
|
|
|
Оіалд a «.hon-circuit cable* Sto loaded thermally and mechanically asweC Therefore the nominal cross-seci ionol ora* S,. m* ««№ type end necessary the hang of cable* ora to bo Mtectgd carefully еисЪ lh*( ths csNee are noi overloaded. Ilie provienme are valid lor a short-оивді duration up to Б s. |
|
|
4d |
Rafael short- circuit Ci#rent arwm^ii |
The rated v+xwt circuit currant for a short CrciJil durational 1» f* wlciOoted by mutt inlying the rated ahcrl-tme current denary with llw ги?*П'Піі cross-sectional urea of the conductor. |
See Appahdot, Table В 2 |
|
4.2 |
P«rnw»ibl* short-circuit current (thermal! |
F«r short etcuit durations horn Is tha pernwsble short-circuit current t* to be calcubiH by cbvding the rated short- cvguit current with the square root of the short circuit duration (in ah |
|
|
4.3 |
Permissible abort-circuit Cltfrent (dynamic) |
З'луїіг'сша eablts Ehazbe salaiy fixed Ю withstand the si facts of peek short treuft ыигегЧ*. for гінііксот® саЫеа special meeeurtnt <irc not rsc*ivad up to 4 Ofc A Ірпок vekiciL |
|
,M To be agreed between purchaser and manufacturerTable 81 : Rated Current •carrying capacity» cablet in air
|
1 |
2 |
3 |
4 |
* |
6 |
|
Insulating Material |
XLP6 |
||||
|
Permissible operating temperature |
90°C |
||||
|
Designation |
N2XH |
N2XCK |
|||
|
Arrangement |
Hi |
|
|
|
|
|
Number of loaded conductors |
1 |
3 |
3 |
3 |
3 |
|
Cross-sectional area |
|
Rated Current in A |
|
||
|
In mm* |
|
|
|
|
|
|
1.5 |
33 |
2л |
26 |
25 |
27 |
|
2 5 |
43 |
32 |
34 |
33 |
36 |
|
4 |
57 |
42 |
44 |
43 |
47 |
|
6 |
72 |
53 |
56 |
54 |
59 |
|
10 |
99 |
74 |
77 |
75 |
81 |
|
16 |
131 |
98 |
102 |
100 |
109 |
|
25 |
177 |
133 |
138 |
136 |
146 |
|
35 |
217 |
162 |
170 |
165 |
179 |
|
50 |
265 |
197 |
207 |
201 |
218 |
|
70 |
336 |
250 |
263 |
255 |
275 |
|
95 |
415 |
308 |
325 |
314 |
336 |
|
120 |
485 |
359 |
380 |
364 |
388 |
|
150 |
557 |
412 |
437 |
416 |
438 |
|
185 |
646 |
475 |
507 |
480 |
601 |
|
240 |
774 |
564 |
604 |
565 |
580 |
|
300 |
901 |
649 |
697 |
643 |
654 |
|
400 |
1060 |
761 |
811 |
737 |
733 |
|
500 |
1252 |
866 |
940 |
807 |
825 |
I1J Rated current for cables in DC-Systems with return conductor far awayTable B2 r PerrrussAle short-circuit temperature end rated short time current densities
|
1 |
2 |
3 1 4 |
5 |
6 |
■> |
a |
9 |
|
Permissible shorts circuit temperature In eC |
Conductor temperature ar the beginning of short-circuit in °С |
||||||
|
90 |
80 70 |
60 |
50 |
40 |
30 |
20 |
|
|
Rated short-time Current density in A/mm* for a rated short-circuit duration of 1 з |
|||||||
|
250 |
143 |
149 1 154 |
159 |
165 |
170 |
176 I |
1 Bl |
SECTION И ; CABLES WITH COPPER CONDUCTORS WITH AND WITHOUT CONCENTRIC
COPPER CONDUCTORS AND WITH OPTIONAL ARMOURING
CONTENTS
Pane
. Scope 54+2
Additional general requirements
Identification of cores 5-М-2
Cable marking 5*H*2
Cables with or without concentric conductor and optional armour
ЭЛ Rated voltage 54+2
3.2 Construction 5-H-3
Teats S4+4
TaWes: і 6 54+5
REFERENCES
References are made, in this Section H of Part б of HD 604, to other Part* of this HD and to other Harmonisation Documents and International Standards at follows:
HD 363 Conductors of insulated cables (Endorsing IEC 228 and 228A)
HD 405 Teste on electric cables under fire conditions
HD 506 Common test methods for insulating and sheathing materials of electric cables
HD 602 Test on gases evolved during the combustion of materials from cables : Determination of degree of acidity (corrosivity) of gases by measuring pH and conductivity
HD 605 Electric cables t Additional test methods
HD 606 Measurement of smoke density of electric cables burning under defined conditions
In all cases reference to another HD of International Standard implies the latest edition of that document.SECTION H
This section specifies requirements fur and dimensions of single-core end multi-core halogen-free cables having reduced fire performance. The cables are insulated and sheathed either with • thermoplastic or crosslinked compound. The cables may be armoured, and an additional halogen-free outer sheath may also be epptied.
The maximum continuous conductor temperature shal not exceed 70QC for compounds НГГ2 and HMT2 or 9C9C for aM other compounds. The maximum permissible conductor temperature under short-circuit conditions is 160’C except for crosslinked compounds НІС and HMC where the corresponding temperature limit is 250°С,
Additional general reouirements
The following general requirements shall ba read in conjunction with those given in Part 1 of HD604.
Identification of cores
The cores of cables having one up to five conductors shall be identified by colours In accordance with the following schemer
|
Number of cores |
Identification n’ |
|
|
Cables with Cables without green-yeiiow core |
||
|
1 2 3 4 Б |
green-yelow ■ * green-yeNow, Ыаск. red. white green-yellow, black, red, white, blue |
black black, red black, red, white black, red. whher blue |
rtl The identification of a core having a reduced c.s.a, shall be ’ green yellow for cables with green-yeHow core * blue for cables without green-yellow core
Cable marking
The method of cable marking shew comply as far as applicable with clause 3 of Part 1 and ihe following requirements:
The external surface of all cables shall be legibly marked with the type designation.
The type designation is under consideration.
. СаЫм without Of with concentric conductor aod optional armour
Rated vcHtaog
0.6/1 kV
32 Construction
Conductor
Only copper conductor* are permissible. The conductor* «hall comply with HD 383. CUss 1 for solid conductor* end Сіам 2 for stranded conductor*. Type of conductor end nominal c.e.a. of conductor are specified in Table 3. Ona conductor may have a reduced c.s.a. as specified in Table 4. Over the conductor a tape may be applied.
Insulation
The insulation shall ba a halogen-free thermoplastic 1HIT1 or HIT21 or halogen-free crosslinked (НІС) compound and sh*N comply with the requirement* and tests specified ki ТаЫе 1A, The insulation wad thickness shai comply with the minimum value specified In Table 5; the mean is not repuirad.
Over the Insulation of multi-core cables, a halogen-free separating element may be applied; it shall be applied over the insulation of single core cables with concentric conductor. Insulation and sheath of single-core cables shall be separable.
Assembly of cores
The cores of cables having two up to five cores shall be cabled. Over the laid up cores a halogen-free binder tap* may be applied.
Inner covering
The core assembly of mufti-core cables may ba covered completely by a halogen-free inner covering which shall be easily removable. It may consist either:
of a taped bedding;
of an extruded bedding compound, or - of a combination of the two.
Halogen free fillers for the interstices may be applied.
