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MGM 115 TYPE 7S

Mining Certficated Cables

Certificates :

APPLICATION

Used for supplying excavating, crushing machines
and equipment.

CONDUCTOR : Electrolytic, stranded, tinned copper wire IEC 60228 Class 5
INSULATION : EPR (Ground core is not insulated)
SEPERATOR : Colored Textile tape for core identification.
SCREEN : Tinned copper / Nylon braided screen over phase cores. Pilot unit is not screened.
LAYUP : All cores are laid up in contact with the bare copper earth conductor.
BEDDING : Rubber based bedding compound.
OUTER SHEATH : Heavy duty chloroprene outer sheath.

RELATED STANDARDS : MGM 115/1985
RATED VOLTAGE : 660/1100 V
TEST VOLTAGE : 2,5 kV

Cross Section
3×50+25+3×43×70+35+3×63×95+50+3×63×120+50+3×10
Phase Conductor
Number and cross section
mm23×503×703×953×120
Strandingmm396/0,40360/0,50475/0,50608/0,50
Conductor diameter
Nom. mm9.7511.6012.7515.10
Insulation thickness
mm1.71.82.02.4
Earth Conductor
Number and cross section
mm21×251×351×501×50
Strandingmm196/0,40276/0,40396/0,40396/0,40
Conductor diameter
Nom. mm6.758.009.759.75
Pilot Conductor
Number and cross section
mm23×43×63×63×6
Strandingmm56/0,3084/0,3084/0,3080/0,40
Conductor diameter
Nom. mm2.603.503.504.40
Insulation thickness
mm1.41.51.51.5
Cable details
Min. overall diameter
mm48.555.162.468.0
Max. overall diameter
mm53.860.868.174.5
Min. bending radius
mm485548613671
Max. pulling tension
kgf1.121.5722
Appx. cable weight
kg/km4.456.086.658.3
Copper weight
kg/km2.23.154.254.8
Electrical details
“Continuous current
rating at 25°C Ambient”
A170205250295
“Intermittent current
rating at 25°C Ambient”
A200250310355
Max. DC resistance at 20°C
Phase Conductors
Ω /km0.3930.2770.210.164
Pilot Conductors
Ω /km5.473.63.62.09
3 screens and earth
in parallel connection
Ω /km0.50.340.280.26
Nom. reactance at 50HzΩ /km0.0980.0950.0940.092
Nom. reactance at 60Hz
Ω /km0.1180.1140.1130.11
Min. insulation
resistance at 20°C
M Ω /km285260250250
3 phase voltage drop on
full load current
mV/A/m0.840.610.470.38
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