Safety Instructions - ABB PQFA Instruction Manual

PQFA Instructions Manual

1. Safety instructions

These safety instructions are intended for all work on the PQFA.
Neglecting these instructions can cause physical injury and death.
All electrical installation and maintenance work on the PQFA should be
carried out by qualified electricians.
Do not attempt to work on a powered PQFA.
After switching off the mains, always wait at least 5 minutes before
working on the unit in order to allow the discharge of DC capacitors
through the discharge resistors.
DC capacitors might be charged to more than 1000V.
Before manipulating current transformers, make sure that the secondary
is short-circuited. Never open the secondary of a loaded current
transformer.
You must always wear isolating gloves and eye-protection when
working on electrical installation. Also make sure that all local safety
regulations are fulfilled.
Asea Brown Boveri Jumet S.A.
5