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 intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

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.