Main Distribution Frame/Protector Frame Checks - Nortel DMS-100 Series Maintenance Manual

4–10 Grounding system maintenance
3 Using the non-metallic brush, brush off any accumulations of dust on the
4 Inspect each CEGB connection for signs of corrosion. If any
5 Using a torque wrench, verify that each connection is tight.
If any connections to the CEGB were not shown on the grounding system
schematic, contact the engineering department. If necessary, remove the
connection from the CEGB or to add the connection to the schematic. Use
the procedure described in Section 4.16 to clean any connections that appear
corroded.

4.15 Main distribution frame/protector frame checks

Perform the following checks:
1 Verify that all MDF/protector frame grounding cables are labeled. If any
2 Verify that all MDF/protector frame grounding connections are shown
3 Using the non-metallic brush, brush off any accumulations of dust from
4 Inspect each grounding connection for corrosion. If any connections are
5 Using a torque wrench, verify that all MDF/protector frame grounding
If any MDF/protector frame grounding cables were unlabeled or were not
shown on the grounding schematic, contact the engineering group, if
necessary, to have the unlabeled cables properly labeled or to have any
connections not shown on the schematic removed from the MDF/protector
frame or added to the schematic. Use the procedure in Section 4.16 to clean
any connections that appear corroded. Do not forget to remove any ID REQ
or NOT ON SCHEMATIC tags after corrective action has been performed.
297-1001-350 Standard 02.02 August 1997
bar and connectors.
connections are corroded, make a note that the corroded connections
must be cleaned.
are not labeled, do the following:
a. Write ID REQ on a blank label and attach it to the unlabeled cable.
b. Make a note that a cable on the MDF/protector frame must be
identified.
on the schematic. If any connections are not shown, do the following:
a. Write NOT ON SCHEMATIC on blank label and attach it to the
cables that are not shown.
b. Make a note that a possible grounding violation has been made or
that the schematic needs updating.
the grounding bars and connections.
corroded, make a note that the corroded connection(s) must be cleaned.
connections are tight.