LI2XCH 2X1X2.5 SW, LI2XCH 1X2X4.0 BK

Common issues

• Insulation resistance drop over time from moisture ingress at unsealed gland entries
• Sheath cracking or embrittlement where cables run close to hot machinery or exhaust piping
• Chafing through the outer sheath at cable tray edges or where lashing is over-tight
• Screen/armour continuity loss from corrosion at termination points
• Overheating and insulation damage from cables loaded beyond rating in bundled trays
• Mechanical damage in accessible engine room or void spaces

Inspection checklist

• Visual check along accessible cable runs for sheath damage, chafing, discolouration
• Insulation resistance (megger) test at scheduled intervals
• Check gland seals for tightness and correct sealing compound
• Verify cable support/cleating - no excessive sag, no sharp bend radii
• Check screen/armour earthing continuity at termination boxes
• Confirm loading is within rating for the actual bundling/derating in use
• Check fire-stop sealing where the cable passes through bulkheads/decks
• Confirm cable type and rating match the as-built cable schedule for that circuit

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 replacement cable (correct type, cores, cross-section)
• Cable glands of correct size and IP rating for the termination points in use
• Crimp lugs/ferrules matching conductor size
• Heat-shrink or cold-shrink termination kits
• Cable cleats/clips for re-securing runs

Safety

• Damaged insulation on power cables is a shock and fire ignition source
• Never work on a cable circuit without confirming isolation and lock-out
• Overheated bundled cables can propagate fire along a tray where fire-stops are missing or damaged
• An unearthed screen/armour can leave exposed metalwork live under a fault condition

Class survey

Class checks insulation resistance trend records and fire-stop integrity where cables cross bulkhead/deck divisions; a reading that is trending down between surveys, even if still above the minimum, is usually flagged for monitoring.