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I
nverter total de-energization and safe access
O
perator and maintenance personnel skills/prerequisites
Personnel in charge of using and maintaining the equipment must be skilled for the described
tasks and must reliably demonstrate their capacity to correctly interpret what is described in
the manual.
For safety reasons, the installation must be performed by qualified installers and/or licensed
electricians in accordance with the existing regulations in the country of installation and in
accordance of all safety rules for performing electrical works. The installers must have
demonstrated skills and knowledge of the inverter's structure and operation.
Inverter operation and maintenance by a person who is NOT qualified, is intoxicated, or on
narcotics, is strictly forbidden.
The customer has civil liability for the qualification and mental or physical state of the personnel
who interact with the equipment. They must always use the personal protective equipment
(PPE) required by the laws of the country of destination and whatever is provided by their
employer.
The purpose of this chapter is to provide instructions for de-energize the
PVS-100/120-TL inverters in order to allow access to active parts inside
the inverter. The procedure describes the steps to perform a total isolation
and thus includes operations on devices that are located outside the
inverter. The total isolation approach consider the disconnection of the
inverter from any possible voltage source to which the inverter may
be connected. In the procedure the test of residual voltage potentially
present inside the inverter is included. This procedure is intended
exclusively to be used by skilled or trained persons in accordance with
safety standards EN 50110-1 and EN 50110-2 (CENELEC/CEN) or
equivalent standards. Furthermore, only these skilled or trained persons
are permitted to carry out the procedure.
The following job requirements and qualifications are required to operate
on the inverter:
• Compliance with all legal standard in force in the installation country to
perform the electrical work described on this procedure.
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8 - Maintenance
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