Security
Requirements for the qualified electrician performing
the installation:
–
Ability to evaluate measurement results
–
Knowledge of IP protection classes and their use
–
Knowledge about fitting electrical installation
material
–
Knowledge of the applicable electrical/electronic
and national regulations
–
Knowledge of fire safety measures and general
and specific safety and accident prevention reg-
ulations
–
Ability to select suitable tools, testers and, if
necessary, personal protective equipment, as
well as the electrical installation materials for
ensuring tripping conditions
–
Knowledge of the type of power supply network
(TN, IT and TT systems) and the resulting con-
nection conditions (neutral connected to earth
in socket, protective earthing, required additional
measures)
Notes on installation
Electrical installation must be performed in such a
way that:
–
Shock protection of the entire electrical installa-
tion is in place at all times, in accordance with
locally applicable regulations.
–
The fire safety regulations in force at the site are
complied with at all times.
–
The controls and displays and USB ports of the
energy manager are accessible to the customer
without restriction and without risk of electric
shock.
–
The cables do not exceed the maximum permit-
ted length of 3.0m for each current sensor.
32
–
The inputs for voltage measurement, the exter-
nal power supply and the relays on the energy
manager must be equipped with suitable backup
fuses.
g Refer to chapter "Connection to the power
grid" on page 40.
–
The correct length and product-specific bending
radii must be complied with when laying installa-
tion cables.
If the installation environment requires Overvoltage
Category III (OVCIII), the input side of the external
power supply must be equipped with protective cir-
cuity (e.g. a varistor) that conforms to local regula-
tions.
Installation at high altitude
The supply leads of sensors that are installed in elec-
trical facilities at an altitude of over 2,000m or that
must conform to Overvoltage Category III (OVCIII)
due to their installation location require additional
insulation in the form of a shrink-fit hose or suita-
ble insulating hose with a breakdown strength of
20kV/mm and minimum wall thickness of 0.4mm
along the entire length of the cable between the
sensor output (housing) and the input terminal on the
energy manager.