Ingecon SUN 125 TL U 208 Outdoor, Installation Manual, Page: 31 / 88

ABB2000IKI01 31
Installation manual Ingeteam
5 GOLDEN RULES
1. Disconnect
Switching on the possible voltage sources. Bear in mind that any capacitors or other elements powered
from uninterruptible power supplies (UPS) are still live.
2. Prevent any possible feedback.
The switching devices used to switch off the equipment must be protected against any possible
reconnection.
3. Check there is no voltage.
Check that there is no voltage in all the active elements of the electrical system or as close as possible
to the work area.
4. Ground and short circuit.
In the low voltage installations that by induction or for other reasons may be accidentally live. And
always in high voltage installations.
5. Rope off and mark the work area.
4.4.3. Personal protection equipment (PPE)
Inspection
The use of safety footwear is mandatory and work clothing must be cotton and be free of conducting or metallic
elements in compliance with Federal and national legislation.
Handling
The use of a helmet and safety footwear is mandatory in compliance with Federal and national legislation.
It is also mandatory to use dielectric gloves and a helmet with protective face mask against electric arcs in compliance
with Federal and national legislation for tasks involving voltage checking or voltage-related tasks in general, whenever
there are directly accessible elements under load.
4.5. Safety measures while working
It is strictly forbidden to gain access to the inside of the electrical panel through any other point than
the front access door provided for the purpose. Opening any of the enclosure covers and/or accessing
them (from the side, rear or top) triggers a general shutdown of all power to the panel (PV array,
3-phase feed and auxiliary single-phase feed, if any). Always access when the unit is voltage-free.
Any work carried out which implies a modification of the original electrical settings must be proposed
to and accepted by Ingeteam.
Below are the obligatory safety standards and the various tasks that may be performed on the unit.
Opening system: the door is opened and closed by a handle with a double-bit lock. Mechanically interlocked door via
controls in the isolating switch door.
Inspection:
The protective elements (methacrylates) of the terminals and connection strips should be properly posi-
tioned at all times (avoid direct access to live parts).
Handling
To carry out handling on the unit, the voltage must be disconnected.
The following points must be taken into account to disconnect the unit from the power supply:
1. Stop the inverter from the display by switching status to stop.
2. Open the DC circuit breaker (PV array). (*)