HYC_50
– Operation and Installation Guide
Hardware
Version 1-2
Page 42 of 76
4
HYC_50 Installation and commissioning
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4.2.3. Surge protection
The HYC_50 is equipped with a type 1+2+3 surge protection (3+1 circuit) as standard so
that it is also suitable for a TT grid. This means that the charging pole can be installed in
LPZ zone 0
A
. The connection to a suitable earthing system, considering country-specific
legal requirements, must be ensured.
4.3. Checks before switching on for the first time
Operation of the HYC_50 must be carried out in compliance with the test and inspection
instructions described below. All instructions listed below are considered binding and must
be carried out by the charging station operator before initial operation.
After transport and installation, check the following points:
Testing
Execution
Mechanical visual inspection
Mechanically sound condition of the installed unit.
Protection class
After connecting the cable connections, protection class IP55
must be ensured
Screw connections
Partial or complete check of tightening torques on terminals and
mechanical screw connections.
Earthing system
Check the earthing, taking into account the site-specific conditions
and the applicable standards.
Lightning protection for the
supply cable
Check whether lightning protection is installed for the supply line
in accordance with IEC 61439-2/-7 or country-specific
requirements.
Selectivity
To ensure selectivity, make sure that series-connected
overcurrent or residual current protective devices only trip the
device that is located directly upstream of the fault location. The
test shall be carried out on the basis of IEC 61439-2.
Operating conditions
Consideration of the operating conditions at the installation site
(e.g. mechanical, chemical, corrosive stress) according to IEC
61439-2 /-7 as well as deviating country-specific standards.
Contact protection
Check whether the contact protection has been correctly mounted
after the electrical installation has been completed.
Residual current device
Check whether a residual current circuit breaker outside the
charging station is required for operation and, if so, whether it has
been installed. The test must be carried out considering the site-
specific conditions and the applicable standards.
Short-circuit resistance
Rated current and short-circuit strength of the main busbar system
considering the upstream protective device according to IEC
61439-2 /-7
Automatic power supply cut-
off
The requirements of IEC 60364-4-41, section 411 must be
fulfilled.
Low-voltage electrical
installations
The requirements of IEC 60364-7-722 must be fulfilled.
Table 8:
Checks before commissioning
