Upgrading/Servicing; Decommissioning And Disposal - GE DR60 Technical Manual

3.7

Upgrading/Servicing

4

Decommissioning and Disposal

21
Where external components such as resistors or voltage
dependent resistors (VDRs) are used, these may present a
risk of electric shock or burns if touched.
Operation of computers and equipment connected to the
DR60 under environmental conditions such as temperature
and humidity that exceed the conditions specified in their
respective manuals can cause malfunctioning or even
irreversible damage to them or the nearby installation.
There might be situations in which the DR60 is operating
within its environmental operational range, but the
computers, equipment connected to them or nearby
equipment are operating outside their operational range.
That situation can cause malfunctioning and/or irreversible
damage to those devices. In that occasion the
communication to the Reason equipment might be
compromised but its recording, operational and safety
capacities will not be affected.
Take extreme care when using external test blocks and
test plugs such as the MMLG, MMLB and P990, as
hazardous voltages may be exposed. Ensure that CT
shorting links are in place before removing test plugs, to
avoid potentially lethal voltages.
Do not insert or withdraw modules, PCBs or expansion
boards from the equipment while energized, as this
may result in damage to the equipment. Hazardous
live voltages would also be exposed, endangering
personnel.
Internal modules and assemblies can be heavy and may
have sharp edges. Take care when inserting or removing
modules into or out of the IED.
DR60
DR60-TM-EN-2A