S&C Instruction Sheet 659-555
7
Safety Precautions
DANGER
The PureWave SMS-250 Storage Management System operates at hazardous
voltage. Failure to observe the precautions below will result in serious personal
injury or death.
Some of these precautions may differ from your company’s operating procedures and
rules . Where a discrepancy exists, follow your company’s operating procedures and rules .
1 .
QUALIFIED PERSONS. Access to the PureWave
SMS-250 system must be restricted only to qualified
persons . See “Qualified Persons” on page 2 .
2 .
SAFETY PROCEDURES. Always follow safe oper-
ating procedures and rules .
3 .
PERSONAL PROTECTIVE EQUIPMENT. Always
use suitable protective equipment, such as rubber
gloves, rubber mats, hard hats, safety glasses, and
flame-retardant clothing, in accordance with safe
operating procedures and rules .
4 .
SAFETY LABELS. Do not remove or obscure any of
the “DANGER,” “WARNING,” “CAUTION,” or “NOTICE”
labels .
5 .
ENCLOSURE. Do not open access doors unless the
system is offline or otherwise authorized by S&C
Electric Company .
6 .
MAINTAINING PROPER CLEARANCE. Always
maintain proper clearance from energized com-
ponents, ensuring the dead-front access panels are in
place after maintenance and before operation .
7 .
HAZARDOUS VOLTAGES. Hazardous dc voltage is
present even without utility power connected .
Hazardous voltages should also be expected in all
interconnecting components and lines .
To maintain safety, the user should use a padlock on
the door of the power conversion system (PCS)
enclosure . The door and the use of the padlock provide
protection against inadvertent contact with hazardous
voltages .
8 .
GROUNDING. For grounding purposes, the pro-
ceeding must be followed:
• The PCS base ground bar in the cable-termination
area must be connected to a suitable earth ground
for testing before energizing the unit and at all times
when energized .
• The overall ground system should be sufficient to
limit the ground potential rise (GPR), step voltage,
and touch voltage to acceptable limits as deter-
mined by the utility’s practices and the National
Electric Safety Code .
9 .
ENERGIZED COMPONENTS. Always consider all
parts live until de-energized, locked open, and tested .
10 .
ADDITIONAL CONNECTIONS. The user should not
attempt to connect any additional logic controls or
power connections to the PureWave SMS-250 system
(beyond the connections shown on the interconnect
drawing) without having received written approval
from S&C Electric Company .
11 .
INSULATED HAND TOOLS. To use insulated hand
tools, the proceeding must be followed:
• Insulated hand tools are required when working
on or around any energized equipment . Use only
properly rated tools for the energy present .
• Tool inventories should be kept to ensure that all
tools that enter the system enclosure are removed
before energizing the system .
12 .
EMERGENCY PROCEDURES AND EQUIPMENT.
For emergency procedures:
• The owner should develop policies and procedures
for handling emergency situations .
• It is the responsibility of the owner to develop site-
specific emergency action plans for response to
such situations .
13 .
ADDITIONAL SAFETY INSTRUCTIONS. Consult
the battery supplier for additional safety instructions
and procedures regarding the battery used for the
PureWave SMS-250 system .
