Safety Instructions; Safety Precautions - HPS DH Serie Guía De Instalación, Operación Y Mantenimiento

SAFETY INSTRUCTIONS

Safety Precautions

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR
ARC FLASH
Refer to nameplate for ratings and voltages.
This equipment must only be installed and serviced by
qualified electrical personnel.
Follow all requirements in NFPA 70E and CSA Z462 for
safe work practice and personal protective equipment
(PPE).
Turn off all power supplying this equipment before
working on or inside equipment.
Always use a properly rated voltage sensing device to
confirm power is off.
Replace all devices, doors, and covers before turning
on power to this equipment.
Failure to follow these instructions will result in
death or serious injury.
1. Do not lift or move a transformer without proper
equipment and properly trained personnel. Lifting
provisions are provided inside of the enclosure on the core/
coil only. Always use lifting provisions provided by the
manufacturer. DO NOT LIFT THE TRANSFORMER BY THE
ENCLOSURE. Rolling and skidding are recommended only
on transformers with a pre-ordered skidding base.
2. Do not off-load the transformer until it has been fully
inspected for damages. If any damages are identified the
transformer should not be energized and HPS customer
service should be contacted immediately.
3. Only use terminals for electrical connections. Flexible
connectors are recommended for bus connections. The
transformer terminals are not designed to support the
weight of line or load cable. Uni-strut supports can
be added in the field providing proper clearances are
maintained.
4. Connections should only be made in accordance with
the nameplate diagram or connection drawings and the
applicable local codes and standards.
5. Make sure all power (including back-fed control and
capacitor charge) is disconnected and all windings are
grounded before attempting any work on the transformer
or inside the enclosure.
6. Make certain all ground connections, line terminals and
selected tap connections are completed and tightened
before energizing the transformer.
7. Do not attempt to change any primary or secondary
connections or taps while the transformer is energized.
8. Do not tamper with control panels, alarms, interlocks, or
control circuits.
9. Do not adjust or remove any accessories or cover plates
while the transformer is energized.
10. No cables should come in contact with the core or coil
or any live parts except the terminal that it is intended
for. Ensure that minimum clearances are maintained at all
times. (refer to Field Testing section)
11. This equipment must only be installed and serviced by
qualified electrical personnel.
12. Follow all requirements in NFPA 70E and CSA Z462 for safe
work practice and personal protective equipment (PPE).
13. Replace all devices, doors, and covers before turning on
power to this equipment.
14. In the case of work being performed around the
transformer that might result in foreign objects falling
inside the core and coil assembly, after de-energizing
the transformer, cover the core and coil with a suitable
protective drop cloth. The drop should be removed and
the transformer visually inspected for any foreign objects
before re-energizing the transformer.
15. Modifications of any kind to the equipment are not
permitted. Beside voiding the warranty such actions
may result in hazardous situations of which the person(s)
3
IOMGDDI / September 2017