Wärtsilä JOVYREC D600 G120/10
150254_10_BA
- 6 –
For personnel safety and equipment protection keep all access doors and panels securely fastened or locked at all
times.
For personnel safety and equipment protection never remove a printed circuit board or fuse from an energized
circuit.
Never override or bypass an interlock or safety device during operation.
ATTENTION:
The rectifier must be considered energized unless input isolation and output isolation switch is
confirmed open.
2.4
Handling of Elelctrostatic Discharge Sensitive Assemblies
Electrostatic discharge (ESD) precautions must be observed when trouble-shooting, handling, aligning, adjusting,
removing, repairing, replacing, un-packing, or repackaging ESD sensitive items. The following items are
considered ESD sensitive:
All printed wiring board assemblies.
All parts, assemblies, and equipment marked ESD sensitive.
Internal and external cable connectors when one end is still attached to an ESD sensitive item.
Drawers or panels when open, disconnected, or removed from the top assembly.
2.5 General
Information
The following general instructions are given as a reminder for personnel trained in ESD prevention. These ESD
instructions do not represent a complete list of precautionary measures which must be observed to prevent ESD
damage.
Only personnel trained in the use of ESD preventive devices, tools, and techniques are to handle ESD sensitive
items.
Synthetic clothing is not to be worn when handling ESD sensitive items. Synthetic cloth is not to be used as
cleaning rags, all cotton cloth is preferred.
A properly grounded ESD wrist strap which makes contact with bare skin is to be worn when handling ESD
sensitive items.
ESD sensitive items will be placed only on properly grounded ESD protective matting when not installed in
equipment.
ESD sensitive items are not to be transported without proper ESD protective coverings, packaging and markings.
Do not damage or discard materials used to package ESD sensitive items. The packing material can be re-used to
return defective items.
Do not allow connector pins of ESD sensitive items to contact a non-ESD protected surface.
2.6 Accident Prevention Regulations
Compliance with the accident prevention regulations valid in the country of application and the general safety
regulations in accordance with IEC 364 is mandatory.
The following must be observed prior to any work on the rectifier:
-
disconnect the power supply,
-
secure against reactivation,
-
verify that the unit is disconnected from the power supply,
-
earth and short the circuit,
-
cover or isolate any neighbouring power-supplied units.
2.7
Danger Entailed During Maintenance and Repair Work
CAUTION:
The voltage applied to the rectifier can be fatal. Prior to start-up or maintenance work always
disconnect the rectifier from the power supply and the batteries and ensure that the unit cannot be
switched on. The capacitors must be discharged. Freestanding and movable components can enter
the work area and cause injuries.
