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Nexans Marine

NSGAFÖU 1Cx120mm2 6/10kV

Name: Nexans Marine NSGAFÖU 1Cx120mm2 6/10kV
Brand: Nexans Marine
SKU: OSE-85343

Nexans Marine NSGAFÖU 1Cx120mm2 6/10kV — 120 mm² cross-section.

Inspector Detail

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Common issues

Insulation resistance degradation from moisture ingress at terminations or a damaged outer sheath
Mechanical damage to the outer sheath from chafing against structure or poor cable route support
Overheating/insulation aging at terminations from loose connections or undersized termination kits
Developing partial discharge activity in aged or damaged insulation at this voltage class
Sheath cracking from repeated flexing at cable transits or, on exposed runs, UV exposure
Water treeing in the insulation over long service life, particularly in damp environments

Inspection checklist

Visual inspection of accessible cable runs for sheath damage, chafing, or degraded supports
Insulation resistance (megger) test at scheduled intervals and after any suspected damage
Thermal (infrared) scan of terminations and switchgear connections under load
Inspect cable transits/glands for sealing integrity (watertight/gastight as required)
Check termination and joint condition for signs of overheating or tracking
Verify cable support and clamping is intact with no excessive sagging or chafe points
Confirm fire-stopping at bulkhead/deck penetrations is intact

Service intervals

Insulation resistance test	annually, or per class/maker recommendation for 6/10kV circuits
Thermal imaging of terminations under load	annually
Visual inspection of accessible runs and transits	at each internal survey
High-voltage proof/partial discharge test	at the class special survey interval for this voltage class - confirm against the applicable class rules

Typical wear limits

Insulation resistance

a commonly referenced general guide is roughly 1 M-ohm per kV of rated voltage as a minimum - the vessel's electrical engineer should confirm the actual acceptance value for this 6/10kV cable, as this is not a substitute for the cable/class-specific criterion

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

Termination/jointing kit rated for 6/10kV, matching cable size and insulation type
Cable glands matching the cross-section and armor type
Spare cable length for emergency repair (maker/yard-specified minimum run)
Heat-shrink or cold-shrink termination repair accessories

Safety

6/10kV is high voltage for marine systems - strict lock-out/tag-out and voltage-absence verification is required before any work
Residual charge in HV cables after de-energization - discharge and earth before handling
Damaged insulation on an energized HV cable presents a flashover/arc-flash risk
Fire risk from overheated terminations - never exceed the cable's current rating or ignore a recurring thermal hot spot

Class survey

Class surveys of high-voltage cable systems typically require insulation resistance test records, confirmation of cable route fire integrity at transits/penetrations, and periodic HV testing per the applicable class rules for 6/10kV distribution.

Estimated lifetime: Not applicable in running hours - marine 6/10kV power cable of this type is typically designed for a service life of 20-25+ years, condition permitting, and is assessed by insulation testing rather than hour-based renewal