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Page 3-C’2O HD 604 St; 1994

Part 3 Section C

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SECTION C QF HD 604. PART 3
GUIOE TQ USE OF Q.6/1 kV POWER CABLES

1. SCQDfl

This guide to use covers the application of 0.6/1 kv power cables according to HD 604 Part 3 Section C

2. Obiect

The object of this document is to provide recommendations for the selection, storage, transport and installation of the cables specified under Hem 1. Scope

Note: Safety requirements аге лот considered in this guide, as they art covered by the relevant regulations and laws.

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Specified cables according to HD 604, Part 3 Section C may be used indoor, also in wet locations, and outdoor for fixed installations on wals and metallic structures Direct burial in toil is allowed as specified in sub-ctsuse 5.1.2.

Cables rated 0,6/1 kV may ba used in DC systems having a rated operating voltage between conductors not higher than 1.5 kV and between conductors and earth not higher than 0.9 kV.

4, Recommendations for storage and transport

The cables whose normal deli very length has a weight not exceeding 50 kg are usually supplied in coils. The cables having a higher weight are supplied in drums.

The cables either in coils or in drums shall be protected in order to avoid any damage.

The inner diameter of ths coil or the diameter ot the drum core shall not be loss than twice the controlled bending radius given in sub-clause 5.4

The cable ends have to be sealed water-proof during transport, storage and laying

Each coil or drum shall be marked on the outside with a durable label or inscription bearing the following indications:

. name gc trade-mark of the manufacturer.

. cable designation (construction, nominal cross section, rated voltage, etc,..| by means of harmonised symbols whenever possible reference to the HD number, whenever possible.

. actual cable length

6. Recommendations for cabte,layinQ an djn striation

   1. General recommendatHHis

      1. Cables shea be installed and operated In such a way that their properties are not endangered.

In this connection the following pointe shall be taken into account:

la) service conditions, such аз concentration of cables insulted, influence of external heat, soli thermal resistivity, solar radiation, etc.

lb) chегпюаі and electrochemical corrosion risks

|c> movements of the soil and vibrations.

Id) potential attack by fauna and flora.

If the cables are provided with a metallic covering I screen), the additional shielding can be omitted.

In any case, the minimum laying depth shal be 0.5 m.

The metaNc covering (screen) is considered to be adequate under the following provisions:

fa) its longitudinal continuity e ensured throughout the cabte route.

lb) it is efficiently grounded.

(c) it is designed to withstand the fault currents, if any,

Note: In case of cables being laid instead of pulled in a duct this condition doos not apply.

The number, position and shape of the bends in a pipe or duct must allow an easy pulling in and out of the cable, ie. without exceeding the maximum allowed pulling force.

If it is planned to lay single tore cables of three phase systems through atwi pipes, aM cables belonging to the зате system have to pass through the same pipe.

Thia diets nee also applies between points of support of cable racks or cable trays.

The minimum admissible temperature of cables during installation or handling is 0°C.Ряде З С-24 HD 604 S1:1994

Part 3 Section C

Б.Э Pulino toads

For pulling in of cables by means of a puritog head at the conductor the maximum value for the putting force is 50 Nfrnm* of total cross sectional area for cable» with copper conductor*

Note: Cables with al и mm rum conductor are not considered to this guide.

5.4 Bendina radius

During mstaUatJcm the bending radius measured at the toner cable generatrix shaN лот (al be to %* the values shown in the foMowtog table (where D is the overall diameter of the cables}.

In the case of faying operation with controlled bending, i.e. bending over a shape, at a temperature not lower than 1b*C_r the above specified bending radii may be halved

.S

CONDUCTORS AND A CON

C CONDUCTOR

НЯЛЕ

ECTION D : CAI LES WITH COPPER OR ALUMMUM ROUND OR SECTOR-SHAPED

CONTENTS

Paoe

1. Scope 3-0-2

2. Additional general reguiramenu

   1. Identification of cores 3-D-2

   2. Splicing during manufacture 3-D-2

   3. Cable marking 303

   4. Add monel test requirements 3D-4

3. (Not apple able і 3-D-5

4. Cables with metallic covering

   1. Code designation 3-D-5

   2. Rated voltage 3-D-5

   3. Construction 306

4 4 Test* 307

Tables: 1 - 9 3-0-8

Appendix: Guide to use 3017

REFERENCES

References are made, in this Section D of Part 3 of HQ 604, w other Pans of this HD and to cither Harmonisation Documents and International Standards as follows:

HD 21 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V

HD 188 Marking by inscription for the identification of cores of electric cables having more than five cores

HD 383 Conductors of insulated cables (Endorsing ІЄС 228 and 228*1

HD 405 Tests on electric cables under fire condtions (Endorsing IEC 3321

HD 505 Common test methods lor insulating and sheathing materials of electric cables (Endorsing ІЕС Sill

HD 605 Electric cables - Additional test methods

IEC 502 Extruded solid dielectric insulated power cables for rated voltages from IkV to 30kV

In aS cases reference to another HD or International Standard implies the latest edition of that document.

SECTION D

1.

Thia section specifies requirements for and dimensions of single core and multi -core PVC insulated and sheathed cables having reduced fire propagation performance.

The maximum continuous conductor temperature shall not exceed 70*C. The maximum temperature for short-circuit conditions is 160°C.

This section covers the folowing class of cable:

1. 2. 3 and 4 core cables having copper or a^ummium, round or sector shaped conductors and a concentric conductor

2. Additional oeneral requirements

The foKowing general requirements shall be read in conjunction with those given in Part к

The cores of all cables shall be identified preferably by numbers, or alternatively by colours, in accordance with the foBowing sequence:

numbers shal be in accordance with HD 186, clause 5- Single core cables need ng number

When colour* are used in mufti-core cables, one of the black cores, corresponding to number 1, may be provided with a white stripe. The width of this sthpe shall be as follows:

• When thg circumference of the core is egual to or leas than 10mm the width shal ba (0.5 ± 0.11mm.

• When the circumference of the core is bigger than 10mm the width shall be not less than 0,5mm and not more than 5% of the circumference.

22 Sobcmo during manufacture

Spicing during manufacture shall be done in such a way that all requirements in this specification regarding construcbon and testing are fulfilled.

Conductors and concentric conductors may be spliced by welding or other equivalent methods. Whole акдемгтжп conductors Of class 2 may, however only be spiked toy MKj-weiding, *HG- weldmg or an equivalent method.2.3 Cable marking

Th* method of cable meddcg shall comply with clause 3 of Pan 1 and th* following additional requirements:

2.3.1 Едягпаі markirw

Th* external surface of al cables shall ba legibly marked wrth th* following elements of marking:

Element

Example of marking

f

XXXX

3 x 150/41