User's Manual

Personal Node User Manual Section 8 Maintenance activities
Rev: 1.1 57 / 70
©
Minetec 2019
Step
Check
Action
Remediation
Notes/References
5)
Power cable
integrity
Check for significant signs of wear or degradation due to
mechanical wear, heat/cold or chemical attack. Look for
signs including kinks or sharp bends, abrasion, splits,
fraying, blistering, swelling, brittleness, cracking,
discolouration or nicks in the insulation.
Replace power cables as required.
6)
Power cable
continuity
If power is not getting to any device but power supply is
OK.
Replace power cables as required.
7)
Power cable
penetrations
Check power cables entering penetrations use serviceable
glands or grommets in good condition (i.e. not perished,
broken or otherwise damaged.)
Replace grommets/glands as required.
For example, if docks are
installed in cabinets.
8)
Power cable
exposure
Check that power cables are not exposed to:
• A risk of being stepped on or kicked during normal
operations.
• Extremes of environment.
• Chemicals (eg hydrocarbons).
Install physical barriers, weather shields
and/or retrofit new conduit.
For example, if docks are
installed in high general use
areas or sitting on desktops.
9)
Fixings
Check power cable/conduit is fixed and secured using P-
clamps and/or cable ties to minimise vibrational flexing
and maximise bend radii.
Replace and/or add or clamps and cable
ties.
10)
Strain relief
Check power cables are not under strain.
Relieve strain on cable by:
• Remove cause, if possible.
• Reposition clamps and/or ties.
• Release some of the cable from the
service loop.
Locate the service loop.
Existing clamps and ties need
to be released to pull the
cable.