GSI Group - Laser Division
JK300HP/JK300P/JK125P
Issue 2.0
Pre-installation and User Manual
Part No: 1EA300E01
Page
27 of 172
2.4 Electrical
Safety
The JK300HP/JK300P/JK125P Series Laser power supply output can reach potentially lethal
high voltage levels. Servicing of the power supply must be carried out by certified personnel
only. Observe all precautions complying with accepted working codes of practice in the
servicing of electrical equipment at all times.
Additionally, the following precautions must be observed:
•
Where it is necessary to raise the Laser head lid with the power supply switched on
(for setting-up or servicing procedures, e.g. fibre-optic alignment, rear mirror
adjustment, etc.), extreme care must be taken when working on the equipment.
•
Do not open cabinet doors while the supply isolator is closed.
•
A two-minute period must be allowed after isolation of the power supply before
opening the cabinet doors, removing covers or raising the Laser head lid. This delay
permits the high voltage capacitors in the equipment to fully discharge.
Additional information and advice on the safe electrical practices associated with the
JK300HP/JK300P/JK125P Series Laser is given below:
•
All personnel working with the JK300HP/JK300P/JK125P Series Laser must be fully
aware of the dangers of misuse of high voltage equipment and be familiar with its safe
working practices.
•
Before using this equipment, operators must be familiar with the operating instructions
provided in the User Manual. If any uncertainty arises, seek advice from the
Appointed Engineer or directly from GSI Group - Laser Division.
Service Engineers must comply with all Local Safety Precautions and follow the advice given
below:
•
Do not permit inexperienced personnel access to the Laser electrical circuits.
•
Always ensure that cables and terminal connections are positioned to prevent arcing
between components.
•
Do not assume polarities of cabling or components, refer to available circuit diagrams
or contact GSI Group - Laser Division.
•
Do not attempt to carry out work on electrical circuits when alone. Always have a
colleague nearby.
•
Use only GSI Group - Laser Division approved spare parts, failure to do so will
invalidate the warranty.
•
Always adhere to Local Plant Regulations relating to work on electrical equipment.
Petitioners Canadian Solar Inc. and Canadian Solar (USA) Inc.
Ex. 1025, p. 27
