Table of Contents
Advertisement
APPENDIX A
TESTS OF THE STATIONARY EQUIPMENT
The tests shall be carried out for each single spraying system. The test shall be carried out by skilled persons
and include the tests according to this table and the internal notes.
SURVEY OF TESTS TABLE
Kind of Test
The stationary equipment
for electrostatic coating
with ignitable liquid coating
materials shall be tested for
occupationally safe state
Effectivity of forced
ventilation (exhaust
air systems)
Safe disconnection of high
voltage shall be tested for
voltage-controlled and con-
stant voltage operation
Safe disconnection of high
voltage shall be tested for
voltage-controlled and con-
stant voltage operation
Protection against too
high discharge energy
Protection against ignition of
cleaning agents
LN-9282-14
Requirements
• In this context, especially the disconnection threshold,
the overcurrent I
and the minimum voltage U
ü
be defined and documented with respect to operational
and local conditions.
• Ventilation must be properly interlocked with high
voltage power supply.
• Forced ventilation must be proved to be working
effectively.
• The disconnection threshold I
documented with respect to operational and local
conditions.
• It shall be tested if the high voltage is disconnected in
case of inadmissible increase of the operational current
and if the disconnection threshold I
I
b
• In this context, the disconnection threshold I
during the initial test shall be checked.
• A disconnection threshold I
occurrence of hazardous discharges or flashover
between parts under high voltage and earthed parts
of the plant in case the safety distance drops below
the permissible limit, is not permitted.
• Validate safety circuits are performing as designed.
• Discharge energy must be less than 300 mJ prior to
reaching the parts.
• Use non-flamable cleaning agents if possible.
• Those used for equipment flushing should have flash
points equal to or higher than those of the coating
material.
• Those solvents used for cleaning must have a flash
point at minimum of 5°C (9°F) greater than the am-
bient temperature. It is the end users responsibility
to insure this condition is met.
Aerobell 268 - Appendix A
shall
min
shall be defined and
ü
is reached.
ü
defined
ü
giving rise to expect an
ü
Review & Testing
Interval
Every 12
months
Continuously
At every
switch on
Monthly
Weekly
Before each
cleaning
84
Advertisement
Table of Contents
