قابلوات الضغط الواطئ

عضو مميز تاريخ التسجيل : 27/05/2010

SPECIFICATION .

TECHNICAL SPECIFICATION

LOW VOLTAGE POWER CABLES

1- SCOPE OF TENDER:

This tender includes for the manufacturing, testing packing shipping delivery ex-works,
FOB & C&F of (6.0/1K) (1.2/2kV).

2- GENERAL REQUIREMENTS:

The material shall be of first class quality and designed for continuous satisfactory
operation as continuity of supply is of prime importance and to operate satisfactorily under
variation of load, voltage and short circuit of other conditions which may occur on the
system provided that these variations are within the designed rating of the apparatus.
The material used shall be suitable for the following climate and soil condition.
2-1 Ambient temperature
Highest maximum (in the shade) 55 C for about six hours a day.
Lowest minimum (-10) C.
Maximum yearly average (+30) C.
Maximum daily average (+40) C.
2-2 Sun temperature
Black objects under sunshine attain a temperature of 80C.
2-3 Air humidity
maximum 92% at 40 C
minimum 12%
yearly average 44%
2-4 Altitudes
From sea level up to (1000 m)

3-TECHNICAL REQUIREMENT:

3-1 System Data
a. Nominal voltage 400 Volts
3phases, 4 wires with neutral solidly grounded.
50 HZ
3-2 Standards
the cable shall be in accordance with the latest issue of the I.E.C (particularly
NOS502 & 228).
3-3 Deviations
the tender shall particularly mention in his tender all deviations of his offer from
the specification described in these tender documents.

4-GENERAL CABLES CHARACTERISTICS:

4-1 Conductor
Non-compact electrolytic annealed stranded plain circular copper conductor of
high conductivity 99-9% purity.
4-2 Insulation
Extruded PVC (polyvinyl chloride) according to I.E.C table.
4-3 Core colors
Colored for phase identifications (Red, Yellow, blue for phase) and black neutral.
. 4-4 Filler and Bedding
The four core then laid up with suitable fillers to form a compact circular assembly
and bedded with a layer of extruded P.V.C.
4-5 Metallic Armor (for multi-core cables)
The four cores then armored with double galvanized steel tapes of thickness
according to I.E.C clause 12.4.
Each tape layer shall be applied in open helix with the second tape covering the gap
left by the first, the gap shall be more than 25% of tape width.

4-6 PVC jacket (st2 table 4 in IEC 502)
Over all extruded PVC sheath water proof grey color of thickness according to IEC
and across section marking of (400 Volts) in the Arabic language should be stamped
each one meter cable length and chemically ant termite and pollution. Also name,
year of manufacturing, voltage and cross-section in the Arabic language.
4-7 Packing
The required cable length are to be supplied on sea.
Worthy good quality drums of length as specified NO.5 below.

5-TYPES OF CABLES

5-1 Single core cable
1-1 50mm2
5-1-2 70 mm2
5-1-3 95mm2
5-1-4 150mm2
5-1-5 240 mm2
For these cables the applicable paragraph are 4.1,4.2 and 4.6 on 250m length drums.
5-2 Four core cables
-2-1 3x240+120mm2
-2-2 3x150+95mm2
-2-3 3x95+70mm2
-2-4 3x70+50mm2
-2-5 4x50mm2
-2-6 4x25mm2
-2-7 4x50mm2
For these cables, the applicable paragraphs are 4.1,4.2,4.3,4.4,4.5, and 4.6 for the
cables from 240mm2 to 95mm2 on 250m good quality drums for cables from 50mm2
to 16mm2 on 1000n m drums.

6- TECHNICAL INFORMATION:

The tendered is requested to give the following information with the offer:
6-1 Resistance of copper per km of cable.
6-2 Inductance of copper per km of cable.
6-3 Capacitance of copper per km of cable.
6-4 Insulation resistance in M. ohns between core/screen.
6-5 Weight of copper per km of cable.
6-6 Overall weight per km of cable .
6-7 Overall diameter of cable
6-8 Type of technical treatment against termite in outer sheath.

7-TESTS

Cable shall be subjected to inspection and tests by our inspectors
. The manufacturers shall provide facilities
for any said inspection. Inspections shall be made at place of manufacturer or at
international testing facilities.
The supplier should provide test certification of the goods .

موضوع: رد: قابلوات الضغط الواطئ 6/9/2010, 09:21

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عضو مميز تاريخ التسجيل : 27/05/2010

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