Fimer MEGASTATION User manual

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MEGASTATION
INSTALLATION, OPERATION AND MAINTENANCE MANUAL

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CONTENTS
1. GENERAL.......................................................................................................................................4
1.1 Address of the manufacturer......................................................................................................4
1.2 Warning on electromagnetic compatibility................................................................................4
1.3 Warning on the manual..............................................................................................................4
1.4 Environmental Impact Statement...............................................................................................4
2. FOREWORD...................................................................................................................................5
3. GENERAL INFORMATION..........................................................................................................6
3.1 General product description.......................................................................................................6
3.2 Structural characteristics............................................................................................................7
3.3 Components installed.................................................................................................................8
3.4 Personnel involved with installation / operation / maintenance ..............................................10
3.5 Limited warranty......................................................................................................................11
3.6 Symbols used in this manual....................................................................................................12
4. SAFETY INSTRUCTIONS AND OTHER NOTES.....................................................................13
4.1 General provisions ...................................................................................................................13
4.2 Requirements for safety...........................................................................................................19
4.3 RISK ASSESSMENT..............................................................................................................21
5. STORAGE.....................................................................................................................................22
6. INSTALLATION ENVIRONMENT............................................................................................22
7. PRELIMINARY OPERATIONS ..................................................................................................23
7.1 Checking the packaging...........................................................................................................23
7.2 Handling and lifting.................................................................................................................24
7.3 Positioning ...............................................................................................................................25
7.4 Electrical connections..............................................................................................................25
7.5 Checks before commissioning.................................................................................................26
7.6 Commissioning the MEGASTATION ....................................................................................27
8. OPERATING AND RUNNING THE MEGASTATION.............................................................28
9. PREVENTIVE AND PERIODIC MAINTENANCE FOR MEGASTATIONS...........................28
9.1 Routine maintenance................................................................................................................29
9.2 Controls and schedule for routine maintenance.......................................................................30
10. TROUBLESHOOTING...............................................................................................................31
11. PARTS AND SPARE PARTS.....................................................................................................34
APPENDIX........................................................................................................................................35

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1. GENERAL
Document title: MEGASTATION
Document classification: Installation, operation and maintenance manual
ORIGINAL INSTRUCTIONS
1.1 Address of the manufacturer
FIMER S.p.A
Via J.F. Kennedy - 20871 Vimercate – (MB) - Italy
Tel. [phone] r.a. - Fax [phone] - www.fimer.com - [email protected]
1.2 Warning on electromagnetic compatibility.
Caution:
The sale of this product can only be handled by competent installers. To prevent inconveniences and malfunctions,
installation restrictions or additional measures may apply.
1.3 Warning on the manual
© Copyright – Fimer S.p.A. – All rights reserved
This publication is the exclusive property of Fimer. This manual is intended for the buyers of our equipment to train end
users. All content, illustrations or anything else contained in this manual are of a confidential technical nature and may
not be reproduced in whole or in part without the specific authorization of Fimer. It is absolutely forbidden for
technicians and end users to disclose the information contained in this manual, and to use it for purposes other than
those strictly related to the proper use of the equipment in question.
Fimer disclaims any liability caused by improper use of the equipment, and the same applies to people or companies
engaged in the creation or production of this manual. The characteristics of the product may be subject to change
without notice. Images are indicative only.
1.4 Environmental Impact Statement
The solar inverters for networked systems produced by Fimer offer lower consumption of raw materials and smaller
amounts of scrap throughout their working lifetime. In typical applications, these positive environmental effects far
outweigh the negative impacts of product manufacture and final disposal.
Product packaging is of good quality and can be reused. All products come in strong cardboard and wood packages,
which themselves have a high percentage of fibre and recycled materials. If not reused, these containers can be
recycled. The polyethylene used for the production of protective film and bags for wrapping products can be recycled
with the same purpose. The packaging strategy adopted by Fimer is oriented towards easily recyclable materials of low
environmental impact and, thanks to regular checks and analysis, aims to identify new opportunities for improvement in
this area. At the end of their lives and of their operation, the inverters can be dismantled very easily by separating
the main component parts for efficient recycling. Some parts of these devices are snap fitted together and
can be separated without the use of tools, while many other components are fastened with conventional
screws and can be disassembled with common screwdrivers. Virtually all parts of the product are suitable
for recycling anyway. Do not dispose of the equipment or its parts as household waste. In accordance with
the European Directive 2002/96/EC on waste electrical and electronic equipment and its implementation as national
law, waste electronic equipment must be collected separately and returned to an environmentally compatible recycling
facility. You must dispose of the equipment used in accordance with the system of collection and disposal that is
adopted and authorized in your area. Failure to comply with this EU Directive may have adverse effects on the
environment and health!

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2. FOREWORD
Dear Customer,
We congratulate you on your choice of our MEGASTATION for solar PV systems,
whose characteristics of high technology and reliability due to its design and system of
quality control make it highly innovative and sturdy.
This manual contains all the information required for the installation, safe operation
and maintenance of this product and you are advised to carefully read its contents
before you connect and operate the machine. The instruction manual is intended for
staff in charge of installation and maintenance as well as all operators involved during
operation of the unit. Any installation, commissioning, operation and maintenance
operations should always be carried out by qualified personnel.
Proper use and maintenance of the product ensure long-term reliability and quality of
the system, an essential prerequisite for maximum performance and excellent yields.
The contents of this manual will help you to solve most doubts and problems. Do not
hesitate to contact your installer, distributor or local representative if problems occur
during use and installation which are not clearly described and documented in this
manual. To get the latest product information and the latest version of the manual,
please visit our website.
Store this manual in a safe, dry place away from direct sunlight, and in the immediate
vicinity of the equipment to allow a quick reference to it in case of future
consultations. In the event of damage to the manual, the user should request a copy
from the manufacturer.
The manual reflects the state of the art at the time of marketing the product. The
manufacturer reserves the right to make changes to the product, and consequently to
the manual without obligation to update the previous editions. However, you can ask
for information and updates that, when released, become an integral part of the
manual.
This manual is an integral part of the machine; in case of resale of the MEGASTATION
the manual must be delivered to the purchaser, and the first user is therefore invited
to inform the manufacturer of the address of the new user.
The manual is an integral part of the unit, must accompany the MEGASTATION in its
every move and should be retained until dismantling of the equipment.
Thank you again for choosing our MEGASTATION.

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3. GENERAL INFORMATION
This manual refers to the essential aspects of the directives, rules and regulations
pertaining to the use of the unit by summarizing the significant points. Non-
observance of the warnings given in this manual, use of the unit by personnel not
specifically trained and educated and use in a manner incompatible with the intended
use may cause people serious injuries and even death. Operating instructions must be
observed as well as laws and rules in force in the field of accident prevention and
environmental protection in the countries where the MEGASTATION is installed. Before
starting the operating cycle, the staff responsible for use and maintenance must have
read the instructions below.
The internal devices are constituted by a set of standardized components that allow to
create any system configuration.
Therefore, especially when factory configuration changes are required, we recommend
that you refer, in addition to this manual, also to ancillary product documentation
(functional and wiring diagrams, assembly and foundation drawing, protective device
selectivity and coordination studies, etc.) that constitutes an external appendix to this
manual, but that is an integral part for the whole equipment.
3.1 General product description
Fimer MEGASTATIONS are stations for the conversion of PV energy from large solar
plants into electricity delivered to the distributor’s MV grid. They are made as
freestanding monoblock containers, are particularly suitable for use in construction
sites of major civil engineering works and in solar parks. Thanks to the flexibility of
different power sizes and ease of connection and commissioning they provide
extremely quick and fast installation times.
Completely autonomous and with a very sturdy mechanical structure, they are
suitable for mobile and semi-fixed installations outdoors and can withstand harsh
environmental conditions.
Their main features are:
-Configuration flexibility and scalability.
-Wide and complete power range.
-Designed and tested at the factory to reduce installation time and avoid on-site
assembly.
-Maximum efficiency and energy production due to built-in Multi Power System
inverters.
-Differentiated management of the photovoltaic generator and optimized
subdivision into several subarrays.
-Designed to be easily serviced periodically due to the easy accessibility of all
installed devices.

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3.2 Structural characteristics
Electrical substations can take a variety of system configurations that, in general, are
the result of the assembly of transformers and high and low voltage components such
as no load and on-load disconnecting switches, circuit breakers, photovoltaic
converters, and equipment for protection, control and energy distribution. The unit is
supplied complete with internal connections on both the medium voltage and low
voltage side, with the transformer connected and installed in its compartment and all
moving metal parts properly connected to the earthing system.
They are made in compliance with international standards of safety, accident
prevention and environmental protection and are built using a container designed and
constructed to maintain its structural integrity and withstand weather in a
temperature range from -30ºC to 60ºC both during transport and after its installation
and wiring within the PV system.
The container structure has standard size (20 feet / 6 meters measuring [WxHxD]
6055x 2896 x 2438 mm, or 40 feet / 12 meters measuring [WxHxD] 12110x 2896 x
2438 mm) for easy transport and handling both at our factory and at the PV system.
It is mostly built with painted steel frames, corrugated panels welded by CO2 gas
shielded arc welding, all external welds including the base frames are continuous with
full penetration and all openings are sealed with flexible sealant. The basic structure is
composed of two side bottom rails, a series of cross members and a series of
gooseneck tunnels and stabilizers, which are welded together as a single
subassembly. The original floor of the container is made of marine plywood parquet
with a thickness of 28mm, is fixed to the cross beams by self-tapping screws and on
top of it a non-slip metal sheet flooring is placed; panels are resting on the cross
beam longitudinally with sanded coating.
The substation features 2 doors with frame and subframe along the long side of the
container: the first for access to the inverter and switchgear room, while the second
to the MV / LV transformer room according to Enel DS919 standard and equipped with
a safety lock. Inside, the substation is divided into two rooms completely segregated,
containing the power transformer and MV / LV electrical switchgears and inverters
respectively. The size of the transformer compartment, and the medium and low
voltage room vary in consideration of the installed power, the value of the mains
operating voltage and the number of slave units. The MEGASTATION is insulated by
affixed panels in a thermally insulating material and ventilation and temperature
control are implemented by means of a fan system designed to ensure the
maintenance of an ambient temperature inside the rooms within the limits required by
the various equipment therein installed. Air entrance and exit takes place through
suitable rainproof and anti-mouse mesh distributed peripherally so as to cool the
equipment in an appropriate and uniform way. Access to the rooms is through doors
properly sized to allow passage of the equipment installed within the rooms and are
equipped, where necessary, with panic exit devices and security locks. On the
equipment installed inside the substation appropriate mechanical safety interlocks are
arranged to allow a control logic that avoids dangers to personnel in the execution of
the manoeuvres. All electrical cables - both power and auxiliary cables - are housed in
special segregated tunnels at the base of the LV modules so as to facilitate the
connections between the switchgears. The lighting system is realized with the use of
fluorescent lamps one of which is fitted with an automatic emergency device with 1h
autonomy. For the earthing system an equipotential bonding terminal is provided
inside, a copper earth busbar, which is to be field connected, by the client’s installer,
to the substation earth directly to the earth of the system.

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3.3 Components installed
FIMER MEGASTATIONS are designed to produce energy complete with all accessories;
the following major components are generally installed in the standard configuration:
-pre-parallel inverter switchgears, equal in number to the inverters
installed, fitted with removable fuses type gPV, dimensioned according to the
maximum current of the single PV subarray.
-FIMER transformerless central inverters, with modular MPS logic, to
convert PV energy efficiently with maximum yield. The AC switches embedded
within the inverters act as a generator device.
-the MV/LV dry-type reduced-loss transformer insulated with epoxy resin
(rated operating voltages of 17.5 kV or 24 kV standard) is equipped with
special PT100 probes controlled by a thermometric unit to maintain the
operating temperature within optimal parameters by means of tangential
fans.
-the MV switchgear or cell, in standard version protects, through special MV
fuses, the section of the system underlying it and creates star configurations
for the MV distribution grid. It has appropriate capacitive voltage indicators, a
switch disconnector with closed / open / earth position and release coil
230VAC. It features a lever and key interlocks to ensure safety. (Different
and optional configurations depending on the type of system should be
evaluated with FIMER technical and commercial departments).
-the LV switchgear for auxiliary services is powered by an external source
(on request only, an internal power line shunted from one of the LV
secondary windings of the MV transformer through an auxiliary LV
transformer 260/400Vca can be provided). The electric switchgear supplies
output power to normal services (power supply for transformer room
ventilation, interior lighting and sockets, power supply to inverter auxiliary
services and SBC, UPS power supply, No. 1 IEC 309 three-phase socket, No.
1 single-phase socket, No. 2 spares [16A / 2 P]) and preferential services (MV
switchgear auxiliary circuits supply, inverter auxiliary services supply,
switchgear and/or monitoring devices supply - SPV, No. 2 spares [10A / 2
P]).
-double-conversion standard UPS, with single power factor, 1500 VA power
and 30 minute maximum autonomy.
-the creation of internal connections and wiring of the electrical
system in the substation are factory made. In the field, the installer must
make the connections of the switchgears (pre-parallel, MV cell, LV aux
services switchgear for both power and auxiliary / monitoring) to the outside
and connect the substation to the external earthing system.
-standard substation accessories are the following: 2-tube lamps, one fitted
with an emergency tube with integrated batteries for 1 hour duration; no. 1
emergency button to disconnect MV; platform and insulated gloves (class 3)
to operate safely on the MV cell, no. 1 6kg powder fire extinguisher; AREL

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safety lock for access to the transformer room, no. 1 portable emergency
lamp with rechargeable batteries, posters and safety signs.
The main protection devices installed in Fimer MEGASTATIONS are the
following:
Input:
DC input fuses within the QPPI and Inverter
DC surge arresters within the Inverter
Insulation control
Protection against reverse polarity
Input short circuit and overload protection
Output:
AC circuit breaker
Output short circuit and overload protection.
In the substation:
External emergency button to disconnect the MV line
Overheating control for the MV transformer with MV line
disconnection system
The main optional equipment available on request for the substations are:
Shunt trip coil within the inverter (to manage redundancy)
Fiscal meter (integrated, one per each inverter)
SPD surge arresters on LV auxiliary switchgear input
LV transformer to supply LV auxiliary services (protected by a specific circuit
breaker)
Non standard nominal operating voltage for system MV line
SPD surge arresters on MV cell line input
MV switchgear with ring or enter/exit configuration
MV switchgear with integrated interface device and/or general device
Fiscal metering of energy delivered to the MV grid
Input room/substation
Technical services room
Switch and Router (Adsl/Wan/3G)
Fimerguard monitoring system for system remote supervision
UPS for auxiliary services for monitoring and protection purposes
Sprinkler system
Substation in vibrated reinforced concrete
Concrete foundation
Substation custom colour
Plant start-up on site
With regard to the product technical data please refer to the external appendixes to
this manual, which list in detail all the devices installed in the MEGASTATION within
the scope of supply.

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3.4 Personnel involved with installation / operation / maintenance
Operators allowed to handle a MEGASTATION can be classified according to their
different tasks and skills as:
- operator;
- maintenance mechanic;
- electrical maintenance technician.
Operator
Operator means a qualified person authorized by the buyer who is entrusted with
the operation of the Megastation with the protections enabled.
In particular, the operator is autonomous and trained to perform operation activities.
The operator must have a thorough knowledge of safety rules and operating
instructions detailed in this manual.
This task is assigned by the employer and / or plant supervisor.
Maintenance mechanic
Maintenance mechanic means a qualified technician authorized by the buyer, who
is able to install, repair, or perform routine and extraordinary maintenance and any
set-up operations of a purely mechanical nature on the Megastation.
The person designated to carry out the maintenance activities of a mechanical
nature must have the technical knowledge to vary the parameters of the control
system of the module (Supervisor access level) and must have, in addition, a
thorough knowledge of safety rules and instructions detailed in this manual.
This task is assigned by the employer and / or the plant supervisor.
Electrical maintenance technician
Electrical maintenance technician means a qualified technician authorized by the
buyer, who is able to install, repair, or perform routine and extraordinary
maintenance and any set-up operations of a purely electrical nature on the
Megastation.
The person designated to carry out the maintenance activities of an electrical nature
must have the technical knowledge to vary the parameters of the control system of
the module (Supervisor access level) and must have, in addition, a thorough
knowledge of safety rules and instructions detailed in this manual.

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This task is assigned by the employer and / or the plant supervisor.
3.5 Limited warranty
FIMER spa disclaims all responsibility for damage to persons or property resulting
from:
use contrary to the specific national legislation;
improper use or use by personnel untrained to professional use;
incorrect installation;
incorrect power supply;
removal and / or reduced visibility of signs and warnings;
avoidance and / or removal of security guards;
serious deficiencies in scheduled maintenance;
use of non-genuine parts or non-specific for the model;
unauthorized modifications or operations;
total or partial non-observance of the instructions contained in this manual;
exceptional events.

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3.6 Symbols used in this manual
INFORMATION: the user is required to give due consideration to what is
described and to pay attention to the directions in the manual.
CAUTION or WARNING: pay maximum attention to what is described in
order to prevent the occurrence of situations that give rise to serious
damage or malfunction to the equipment as well as accidents, personal
injury, or death.
DANGER OF SHOCK: the instructions must be followed to avoid the risk of
lightning and electrical shock.
PACKAGING INSTRUCTIONS
INSTALLATION INSTRUCTIONS: a description is provided of the procedure
for installing the Megastation.
INSTRUCTIONS FOR USE: a description is provided for using the
substation.
DISPOSAL: contains useful information for the disposal of the Megastation.

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4. SAFETY INSTRUCTIONS AND OTHER NOTES
Failure to follow these instructions can have serious consequences, such as the
destruction of the equipment, personal injury and death due to electric shock.
Therefore, reading and understanding the following safety instructions must precede
the commissioning of MEGASTATIONS. For any clarification or additional information
please contact Fimer technical support.
4.1 General provisions
Upon receipt of the substation:
Upon receipt of the MEGASTATION visually check it for integrity and in case
you notice any abnormality or damage, due to shipping, proceed to a conditional
acceptance of the substation, and contact your dealer or the manufacturer.
The reporting of irregularities, even following the receipt must be accompanied
by the date of construction of the container, the serial number and the
corresponding number of the order confirmation, which can be found on the
nameplate.
Hazardous voltage:
Inside the substation high operating voltages may cause damage, even serious
ones, to people.
The conductors and components with hazardous voltages are segregated in
special areas only accessible using tools not supplied with the container.
All devices installed in it must always be used with all the panels properly
secured and locked doors or guards enabled.
All maintenance or repair works that require access to the interior of the
equipment can be carried out only by Fimer technical personnel or properly
trained staff.
Before working on devices inside the MEGASTATION (operation reserved only
to personnel trained by Fimer), it is absolutely necessary to open the switches
on both the DC (solar array) and AC (LV and MV mains) side and wait at least
10 minutes in order to allow all the internal units to discharge completely.
Always use a multimeter or other suitable measuring instrument to ensure that
there are no hazardous voltages.

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Earthing:
Firstly, always connect the earth wire coming from the earthing system of the
plant to the appropriate copper busbar (earth busbar) provided for this purpose,
located in the LV / MV switchgear room and identified by the symbol .
In case of disconnection of the substation, lastly disconnect the earth wire from
the busbar.
Plant:
Always connect the Megastation to the electricity distribution network according
to MV and LV devices provided and avoid connecting the latter to any other type
of voltage or current generator other than the solar panels in order to avoid the
occurrence of damage and breakage.
Follow the instructions and guidelines given by the manufacturers of the panels,
which make up the photovoltaic generator, and the electric power distribution
and management company.
Power up the substation according to the values indicated in the technical
specifications of the product and on the data plate of the equipment.
Safety standards:
In addition to the installation and use instructions it is mandatory to comply with
the local rules of safety and security for the prevention of accidents and the
protection of the environment.
The personnel accessing the premises in which solar inverters or electro-
mechanical equipment are installed must always wear earmuffs and appropriate
personal protection equipment.
Safety and danger symbols:
All safety and danger symbols on the equipment
must be kept legible
must not be damaged
must not be removed
must not be covered with stickers or markings

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Object insertion:
Do not insert objects into the slots and ventilation grilles and avoid blockage of
air entrance and exit in/from the substation and any devices installed in it; avoid
contact with any type of liquid; cleaning must be carried out only with a dry cloth.
These precautions should be observed even with the machine off.
Treading-on:
LV, MV switchgears and PV inverters are not designed to withstand heavy
weights. Never climb on the equipment, do not place scaffolding and do not use
them as support for additional devices (bridges, pipes, air ducts, etc....…).
Cable cross-section:
Check that MEGASTATION input and output cables are of a suitable section.
Perform the same check also for the cables of the system.
The connections, the section of the cables used and the installation must comply
with the regulations in force.
First start-up:
Avoid to power the equipment before competent personnel expressly authorized
by Fimer has carried out checks.
Subsequent start-ups:
Proceed with the start-up with all switches open.
Repairs:
The unit must be immediately taken out of service in case of anomaly.
The work must be performed only by electricians in compliance with the rules of
electrical engineering. All the measures and warnings about the safety of
operation, general safety and accident prevention must be compulsorily taken
and observed.
All operations and interventions on live electrical parts that may also affect the
unit indirectly must be carried out after opening the medium voltage switch /
disconnector and after closing the MV transformer side earthing switch.

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Never attempt to repair the Megastation or any equipment mounted in it, but
always contact the manufacturer or its authorized service centre.
Any attempt to repair not authorized in writing and not directly managed
by Fimer, as well as being objectively dangerous, results in the immediate
expiration of the warranty and the cessation of any liability for any
malfunctions and for the consequences that may result from them.
In case of repair, contact the manufacturer or its authorized service centre; only
use original spare parts; in case any non-original parts are used no warranty is
made as to their ability to withstand the stresses to which they are subjected
during normal operation.
Do not make changes within the Megastation nor install devices that are not
envisaged or non-compliant and not approved for any reason.
Never bypass safety devices and have them reset by specialized personnel for
the necessary repairs before restarting the unit.
Support:
Support must be required any time the equipment has been damaged in any
way such as by liquid penetration, objects fallen on top of it or within it, when it
has been exposed to rain or moisture (outside of the specified values), when it
does not operate normally, when it exhibits changes in performance or when it
suffered severe and obvious impact.
The faults that can jeopardise the safety of the Megastation and of the whole
system must be repaired before restarting the system again.
Duration of Megastations and equipment installed within
them:
Fimer Megastations are designed and produced to ensure a high MTBF. Note,
however, that MTBF is a statistical parameter entailing conceptual and practical
limitations.
Remember that the MTBF is related to equipment properly ventilated, installed
and maintained; in other words, it cannot take account of conceptual or practical
errors in the construction of the plant, nor of neglect or wilful misconduct.
It should be noted that a continuous operation of the equipment at elevated
temperatures or always approaching the admissible limit, determines the
shortening of life expectancy.
In consideration of their own function, the Megastations and associated
equipment covered by this manual are suitable for professional use only and
cannot be used by inexperienced personnel.

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Maintenance:
In order to ensure the effective expected life for which the equipment has been
developed it is necessary to perform maintenance as described in this manual.
Routine maintenance of the equipment must be periodically performed by
qualified service personnel (such as the PV system installer) by visually verifying
the status of the machine and its internal components by performing the
operations described and set forth in the Appendix of this manual.
The extraordinary maintenance of the equipment must always be carried out by
Fimer personnel or authorized personnel such as one of its service centres, and
this is the only way to ensure new and original spare parts are used, and that
the device is (according to the applicable maintenance contract) constantly
updated with any improvements made in the meantime (in accordance with the
state of the art).
In particular, any equipment fitted with non-original or non-new parts or parts not
compliant with the state of the art, will be considered "modified" with the legal
and practical consequences resulting therefrom.
Adjustment, maintenance, inspection and repair operations prescribed in the
operating instructions must be carried out at the deadlines specified also in
compliance with the information on the replacement of parts or sub-components.
These operations must be carried out by qualified personnel only.
Product data plate:
The product data plate bearing the code of the equipment, the serial number
and technical data is fitted within the LV / MV switchgear room of the substation.
For any communication on the equipment, always quote the serial number
marked on the data plate above.
Changes of the equipment:
Any alterations and modifications to the equipment not expressly and formally
authorized by Fimer are prohibited and will result in the immediate termination of
the guarantee and the cessation of any liability for any malfunctions and for the
consequences that may result from them.
This prohibition does not apply to minor changes that do not involve
consequences for the static and dynamic operational safety, nor to measures
that increase safety. The user must, however, take responsibility, unless in case
of written consent of the manufacturer.
The unit can be used only if all safety devices are enabled.

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Limitation of Liability:
Fimer in no event shall be liable for any direct or indirect damages resulting from
the failure of the equipment (including damages for loss of profits or loss of
revenues), even assuming that Fimer had been notified of the possibility of such
damages.
The manufacturer assumes no responsibility for improper use of the equipment
or use other than that for which it is intended, including failure to follow and
comply with periodical maintenance, and which could cause damage or
malfunction.
Failure to comply with environmental conditions for operation and installation of
the Megastation described in this manual may result in equipment or system
damage, and are considered equal to the inadequate use of the equipment for
which Fimer disclaims any liability.
Disposal:
WEEE means Waste Electrical and Electronic Equipment including all
components, subassemblies and any consumables that are an integral part of
the product when the decision to discard it is made. The legislation provides for
two main categories called professional WEEE and household WEEE.
Professional WEEE means all waste electrical and electronic equipment
intended for a purely industrial use.
The equipment described in this manual are professional products and
therefore, at the time of disposal, are professional WEEE.
As the directive has not yet been enforced at the date of preparation of this
instruction manual, please contact the distributor and / or the manufacturer for
more information about the disposal or, alternatively, bring the equipment to a
collection point for the recycling of electrical or electronic equipment.
Lightning and surge:
The inverters installed within Megastations are fitted as standard with a class 2
arrester on the DC line (input).
This arrester protects the inverter, but it is not able to protect the panels,
especially in the case of long connections to the solar array.
It is therefore recommended to install field boxes fitted with their own arresters
suitable for photovoltaic application.

Code 910.400.172GB REV02 Page 19 of 56
4.2 Requirements for safety
Like all electrical substations, Fimer MEGASTATIONS pose a risk to safety; according to
the Consolidated text on Security, in order to eliminate or reduce these risks the following
prohibitions, obligations and requirements must be complied with:
E
EN NT TR RY Y F FO OR RB BI ID DD DE EN N
T
TO O U UN NA AU UT TH HO O
R
RI IS SE ED D P PE E
R
RS SO ON NS S
D
DO O N NO OT T E EX XT TI IN NG GU UI IS SH H
F
FI I
R
RE E W WI IT TH H W WA AT TE E
R
R
D
DA AN NG GE ER RO OU US S V VO OL LT TA AG GE E
D
DO O N NO OT T P PE ER RF FO OR RM M A AN NY Y W WO OR RK K U UN ND DE ER R V VO OL
LT TA AG GE E
D
DO O N NO OT T R RE EM MO OV VE E P PR RO OT TE EC CT TI IO ON NS S A AN ND D / / O OR R
E
EL LE EC CT TR RO O- -M ME EC
CH HA AN NI IC CA AL L S SA AF FE ET TY Y L LO OC CK KS S
D
DA AN NG GE ER R O OF F F FA AL LL LI IN NG G F FR RO OM M H HE EI IG GH HT TS S
D
DO O N NO OT T
W
W
A
AL L
K
K
O
ON NT TH HE E
R
R
O
OO OF F
B
BE EF FO OR RE E L LI IF FT TI IN NG G T TH HE E S SU UB BS ST TA AT TI IO ON N
C
CH HE EC CK K F FO OR R S SU UI IT TA AB BL LE E E EQ QU UI IP PM ME EN NT T

Code 910.400.172GB REV02 Page 20 of 56
D
DO O N NO OT T S ST TA AC CK K T TH HE E S SU UB BS ST TA AT TI IO ON NS S O OR R P PL LA AC CE E M MA AT TE ER RI IA AL LS S O ON N
T TH HE E R RO OO OF F
C
CH HE EC CK K T TH HE E F FI IT TN NE ES SS S O OF F T TH HE E S SU UR RF FA AC CE E B BE EF FO OR RE E P PO
OS SI IT TI IO ON NI IN NG G
D
DO O N NO OT T S ST TO O
R
RE E F FO O
R
RE EI IG GN N M MA AT TE E
R
RI IA AL L I IN N T TH HE E E EL LE EC CT T
R
RI IC C S SU UB BS ST TA AT TI IO ON N
R
RE EM MO OT TE E- -C CO ON NT TR RO OL LL LE ED D M ME EC CH HA AN NI IC CA AL L P PA AR RT TS S
H
HI IG GH H- -E EN NE E
R
RG GY Y P PA A
R
RT TS S W WI IT TH H P P
R
RE EL LO OA AD DE ED D S SP P
R
RI IN NG GS S
I
IN NS ST TA AL LL L T TH HE E S SU UB BS ST TA AT TI IO ON N I IN N C CO ON NF FO OR RM MI IT TY Y T TO O T TH HE E P PR RO OJ JE EC CT
T
B
BE EF FO OR RE E A AN NY Y O OP PE ER RA AT TI IO ON N R RE EA AD D T TH HE E I IN NS ST TR RU UC CT TI IO ON NS S
I
IN NS ST TA AL LL LA AT TI IO ON N, , C CO OM MM MI IS SS SI IO ON NI IN NG G A AN ND D M MA AI IN NT TE EN NA AN NC CE E
M
MU US ST T B BE
E P PE E
R
RF FO O
R
RM ME ED D B BY Y A AU UT TH HO O
R
RI IZ ZE ED D P PE E
R
RS SO ON NN NE EL L O ON NL LY Y