Страница 80: ДСТУ HD 604 S1:2012. 0,6/1 kV and 1,9/3,3 kV power cables with special fire performance for use in power stations (61947)

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II

According to Table 1.

Cablea without or with metallic coverirw

3.1

Code designations (Provisional) (Under consideration by TC20)

Cods designations (as given in Table 51 indicate the following:

A XMK-HF

AXCMKHF t

Ai/XLPE/No concentric conductor Al/XLPEJConcentnc Cu-condutor

3.2

XMK-HF XCMK HF BCMK-HF

Cu/XLPE4Mo concentric conductor

Cu/XLPE/Concentric Си-con ductor Cu/EPR/Concentric Cu-conductoc

Rated vottaoe

0.6/1 kV.

Part 5 Section I

3-3 Construction

The inner conductors are made of afuminium or anneaUd copper according to HD 383,

(a) croes-aection < 16mm* Сіам I sokd round (bl cross-section 16mm¹ сіма 1 solid or сіма 2 stranded compacted round (cl other cross-sections dess 2 stranded compacted round or sector-shaped.

Aluminium conductor may be also solid-

3-3X1 Mitral

The insulation shall ba crosslinked polyethylene, I XL PET or vulcanised EPR rubber compound- The msuiation ahal not hove a damaging effect on the conductor. The material shal meet the test requirements given in Table 1.

3 3 2.2 Insulation thictam»

The insulation shall be intact. The nominal thickness of the insulation Is specified In Table 4« The average value shall bo not lass than the specified nominal value. The thickness at any place shall not faJ below the specified nomine! value by more than 0.1 mm * 10%.

3 3.2.3 AttixnMv erf сомі, innti coverings and filter»

In mutticore cables the laid-up cores shaM have a lapped or extruded inner covering. The cables with round inner conductors shall have an extruded inner covering. The spaces between the conductors may be tilled by yams of proper material. Alternatively other means may be used to ensure Chat the construction becomes compact The materials of the filing construction she* be suitable for the permitted operating temperature of the cable and compatible with other materials of the саЫе. They shall be removable without damaging the insulation.

In case of need, a separation layer made of • suitable material may be used to prevent harmful interactions. The approximate thickness of the inner covering ia given fri Table 5.

3.3 4 Concentric conductor

The concentric conductor shall be made of annealed copper.

The concentric conductor shall be applied over the inner covering, h shall consist of one layer of round copper wires and a copper contact tips touching the wires.

The lay length of the wires shaM not be more than 50 times the diameter measured under the wires. If the copper wires have been laid in waveform, the angle of lay has to be such that the length of the wire is the same os calculated from die condition above-

The contact tape may be solid copper or a flat bundie of copper wires.

The concentric conductor has to be made so that the space between the single wire does not exceed 4mm. A maximum of 5% of the spaces may exceed 4mm, but shall not be more than 8mm.

The thickness of the contact tape shall ba 0.1 • 0.3mm and the width at least 3mm.

On the concentric conductor there shall be a separation layer made of a suitable material.

The nominal сгоы-мсЪол and the maximum resistance of the concentric conductor is specified in Tables 2 and 3.

3.3,5 Outer sheath

3-3.6.1 Material

The sheath than ba green weather-re sista nt extruded halogen free thermoplastic polymer compounds

The sheath shall meet the test requ<emants of Table 1, of this document.

The sheath material ah al be compatible with the other component materials of the cable. The sheath shall be removable without damaging the other elements of the c*We

3.3.5.2 Thickness of the sheath

The nominal thickness of the sheath ts specced in Table 5. The average value of the sheath thickness shall not bo less than the specified nominal value. The thickness of the sheath shall not at any point tall under the given nominal value by more than 0.1mm * 15%.

4. Tern

   1. GBDfiUl

Compliance with the requkemonts of sub-clause 3 3 shall be checked by inspection and by tests specified in Tables 1 and 2.

If the electrical strength of the cable installation has to be checked, the measurement is carried out either by 10 kV DC for 15 min or 3kV AC for 5 min.

The test shall be carried out completely <1 the test room for aN the cables of dause 3 according to HD 605 sub-clause 2.4 J .3.HD 604 $1:1994

Part $ Section I

ТвЫе 1 - Type mu

ТаЬй 1I continued)

Table 1 (continued}

Tabi* 1 (continued)

Table 1 Iconduded)