كتالوج اريفا لتركيب وصيانه السويتش جير

[أحمد زكريا محمد]

شكرا

[حازم موسى]

يرجى فتح الملف

[حازم موسى]

Medium Voltage

Cable With Copper C**ductor









1. Scope of The Tender:



This tender includes for the manufacturing, testing, packing, shipping delivery ex-works, FOB & C&F OF 18/30(36) kV and 12/20 (24) kV cables.



2-General Requirements:



The materials shall be of first class quality and designed for c**tinuous satisfactory operati** as c**tinuity of supply is of prime importance and to operate satisfactorily under variati** of load, voltage and short circuit or other c**diti**s which may occur ** the system provided that these variati**s are ****** the assigned rating of the apparatus.

The materials used shall be suitable for the following climatic and soil c**diti**s.



2-1 Ambient temperature:



Highest maximum (in the shade) 55C for about 6 hours a day

Lowest minimum (-10) C

Maximum yearly average (+30) C

Maximum daily average (+40) C



2-2 Sun temperature:



Black objects under direct sunshine attain a temperature of 80 C



2-3 Air humidity:



Maximum 92% at 40 C

Minimum 12%

Yearly average 44%







2-4 Altitudes:



from sea level up to (1000m)



3-Technical Requirement:



3-1 System Data



a. 33KV System

Nominal voltage 33000 volts

Highest system voltage 36000 volts

System 3-phase,3 wire with neutral grounding transformer to limit the earth fault current to 1000 Amp.

Frequency 50HZ

Short circuit breaking current 25KA.R.M.S at 33000 volts.



b.11 KV System

Nominal voltage 11000 volts

Highest system voltage 12000 volts

System 3-phase, 3wire neutral earthed through resistance of. 21.1 OHM limiting earthed fault current to 300A

Short circuit breaking Current 25 KA R.M.S at 11000 volts.



3-2 Standards:



The cable shall be in accordance with the latest issue of the I.E.C.

Particularly IEC NOS 60502 & 60228 specificati**s and 60949.

3-3 Deviati**s

The tendrer shall particularly menti** in his tender all deviati**s

of his offer from the specificati**s described in these tender documents.








4-General Cable Characteristics:





4-1 C**ductor:

Compact electrolytic annealed stranded plain circular copper C**ductor of high c**ductivity 99.9% purity.

4-2 C**ductor screen:

A layer of extruded semi-c**ducting compound forming a n** metallic screen. The extruded semi- c**ducting compound shall be firmly b**ded to the insulati**.



4-3 Insulati**:

Extruded XLPE cured with dry curing process.



4-4 Insulati** screen:

a- N** metallic screen applied directly over the XLPE insulati** and shall c**sist of a layer of extruded semi c**ducting compound and of 50% overlap semic**ducting tape.

b- The metallic screen must be a combinati** of copper stranded and copper tape.

For 33kv cable the equivalent cross-secti** area to be 35 mm2

For 11kv cable the equivalent cross-secti** area to be 25 mm2



4-5 filler & bedding :

The three cores then laid up with suitable extruded EPR fillers a compact circular assembly and bedded with a layer of extruded P.V.C.



4-6 waterproof tape:

A layer or suitable tape for water proofing to be laid over the bedding.



4-7 Metallic Armour:

The three cores then armoured with double galvanized steel tapes of thickness not less than 0.5mm. 50% overlap.



4-8 PVC Jacket:

Over all extruded PVC seamless sheath to prevent moisture from penetrating and provides good corrosi** protecti** thickness not less than 3 mm and to be antitermite treated (n** polluted material).

Marking of (11 kV) or (33 kV) in the Arabic language should be stamped each **e meter length and treated. Also name, year of manufacture, Voltage & cross secti** in the Arabic language. The colours are to be :- RED FOR 33 kV BLACK for 11 kV.



4-9 Packing

The required cables lengths are to be supplied ** sea – worthy good quality drums of lengths as specified in item 5.



5- Type of Cables:



5.1 36 KV cables:



5.1.1. 1x400 mm2



For this cable the applicable paragraphs of article a are :-

4.1,4.2,4.3,4.4,4.6,4.8,4.9-with rated voltage VO/V=18000/30000 V (suitable for highest system voltage of 36000 V) 500 m. length drums



5.1.2 3x150 mm2

For this cable the applicable paragraphs of Article 4 are :-4.1,4.2,4.3 4.4,4.5,4.6,4.7,4.8,4.9 – with rated voltage VO/V =18000/30000V (suitable for highest system voltage of 3600v ) ** 250m length drums .



5.2 24 kv cables:

5.2.1 1x400 mm2

For this cable the applicable paragraphs of Article 4 are : 4.1,4.2,4.3,4.4,4.6,4.8,4.9 - with rated voltage VO/V =12000/20000 (suitable for highest system voltage of 12000V) with 250m length drums .



5.2.2 1x150 mm2

For this cable the applicable paragraphs of Article 4 are : 4.1,4.2,4.3 (same note as para.5-2-1) 4.4,4.8,4.9 with 500m length drums .



5-2-3

1x95 mm2

1x70 mm2

1x50mm2

(same statement AS 5-2-2)



5.2.4 3x150 mm2

For this cable, the applicable paragraph of Article 4 are :

4.1,4.2,4.3,4.4,4.5,4.6,4.7,4.8,4.9-with rated voltage 12/20 KV and thickness of , insulati** 5.5 mm2 with 250 cable drums .






6-Technical Informati** for Cables:



The tenderer is requested to give following informati** with his offer:-

7-1 Resistance of copper per KM of cable

7-2 Inductance of copper per KM of cable

7-3Capacitance of copper per KM of cable

7-4 Insulati** resistance in M.OHMS between cores / screen

7-5 Weight of copper per KM of cable

7-6 Overall weight of cable per KM of cable

7-7Overall diameter of finished cable in mm

7-8 Type of chemical treatment against termite in the outer sheath.



7-Tests

Cables and accessories shall be subjected to inspecti**s and tests by our inspectors or internati**al inspectors at any time during manufacture. The manufacturers shall provide inspecti** facilities for the said inspecti** shall be made at place of manufacture or at internati**al testing facilities.





8- Cables ****ts and Terminati**:



Cable ****ts and terminati**s to be slip ** or heat shrinkable type complete with all necessary ****ting materials suitable for 24 & 36 kv under-ground cable , The terminati**s and ****ts should be as follows :-

6-1 Straight through ****t box for cable shown under 5.1.1 complete .

6.2 Outdoor end boxes suitable for cable shown under 5.1.1 complete

6-3 Indoor end boxes suitable for cable shown under 5.1.1 complete

6-4 straight through ****t box suitable for cable shown under 5.1.2 complete

6-5 Outdoor end boxes suitable for cable shown under 5.1.2 complete

6-6 Indoor end boxes suitable for cable shown under 5.2.1 complete

6-7 straight through ****t box suitable for cable shown under 5.2.1

6-8 indoor end boxes suitable for cable shown under 5.2.1 complete

6-9 Outdoor end boxes suitable for cable shown under 5.2.1

6-10 indoor end boxes suitable for cable shown under 5.2.2

6-11 indoor end boxes suitable for cable shown under 5.2.3







N.B:-

The prices shall be based ** L.M.E. price for copper bar 1800 U.S.D/M.T. The formula f

[saidi]

جزاك الله احسن الجزاء

[islam7assan]

thanks alot

[hichem77]

شكرا

[mahmoudelnahas]

thanks

[ahmed samy]

مشكور

[eng wael]

مشكووووووووررررررررررررررر

[mohamed ahmed fawzy]

thank u