PRYSMIAN - Navy Cable FMSGSGO

Common issues

• Insulation resistance degradation from bilge water or oil ingress at gland points
• Chafing damage where cable runs through bulkhead penetrations without adequate grommets
• UV degradation on exposed outdoor cable runs
• Overheating/discolouration from overloading or poor ventilation in cable trunks
• Mechanical damage from bend radius violations during installation

Inspection checklist

• Insulation resistance (megger) test at scheduled intervals
• Visual inspection of accessible cable runs for chafing and mechanical damage
• Gland and penetration seal integrity, including watertight and fire-rated bulkhead penetrations
• Cable support/tray fixing security
• Fire-rated cable transit sealing where applicable
• Continuity and earth bonding check

Service intervals

Typical wear limits

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

Critical spares

• Matching cable stock of the same type approval and rating for repairs
• Cable glands and transits, fire-rated where required
• Crimp lugs/terminals sized to the conductor

Safety

• Fire propagation risk if a non-approved or non-flame-retardant cable is substituted during repair
• Isolate and lock out circuits before insulation resistance testing
• Confirm the type approval matches the intended location (e.g. engine room vs. accommodation) to avoid a toxic smoke risk in a fire

Class survey

Type Approval TAE000036B is checked against the cable type actually installed per the cable schedule/drawing. Class reviews insulation resistance test records at each periodical electrical survey and checks fire-rated transits at hull and deck penetrations.

Estimated lifetime: Not a running-hour item; typical design service life is 20-25 years, condition-dependent.