￭
Working areas
•
MV Transformer Area
•
MV Switchgear Area
•
Inverter Area
•
Auxiliary Service Area
Each work area has separate safety instructions.
￭
Personal protective equipment (PPE)
•
Perform any operation on the equipment with suitable work clothes and instruments.
See
PPE safety equipment (page 11)
•
When choosing a personnel protective equipment, consider environmental conditions
such as humidity, noise, etc. and local regulations.
•
Make sure the work clothes and accessories are not prone to generate electrostatic
charges, fires or any other condition that compromises personnel safety.
PPE safety equipment
The minimum required safety equipment is as follows:
•
Safety shoes
•
Safety gloves
•
Safety glasses
•
Head protection
•
Hearing protection
•
Work clothes
￭
Safety instructions for MV switchgear and MV transformer area
WARNING!
Perform the below instructions before you start working inside the MV switchgear
and/or MV transformer area. Ignoring the instructions can cause physical injury or
death, or damage to the equipment.
1.
Identify the MV switchgear and read its safety instructions.
2.
Check the operation of the capacitive voltage indicators in all MV switchgear bays (all
phase LEDs are switched on when a voltage is connected).
3.
Disconnect the MV switchgear from all possible power supplies (external, auxiliary, and
inverters as well as any parallel connection stations), and secure by locking and tagging.
See instructions in section,
Disconnecting the MV switchgear from power
.
4.
Check that all shrouds/screens are in place.
5.
Check that you are not near to any live parts while working. All live circuits must be
protected with shrouds/screens.
6.
Make sure that the MV switchgear is dead.
•
Check the status of voltage indicators in all MV switchgear bays. Note that all phase
LEDs which were switched on AC cabinet at are now switched off).
7.
Earth the MV switchgear and the AC cabinet. See instructions in section,
MV switchgear and AC cabinet (page 12)
Safety instructions 11
