IS 17017 (Part 1) : 2018
9
6 CHARGING MODES AND FUNCTIONS
6.1 General
Clause 6 describes the different charging modes and
functions for energy transfer to EVs.
6.2 Charging Modes
6.2.1 Mode 1
Mode 1 is a method for the connection of an EV to
a standard socket-outlet of an a.c. supply network,
utilizing a cable and plug, both of which are not tted
with any supplementary pilot or auxiliary contacts.
The rated values for current and voltage shall be as
follows:
Single Phase
a.c.
Three Phase
a.c.
Rated Voltage
240 V 415 V
Maximum rated
current
16 A 16 A
EV supply equipment intended for Mode 1 charging
shall provide a protective earthing conductor from the
standard plug to the vehicle connector.
Current limitations are also subject to the standard
socket-outlet ratings described in 9.2.
6.2.2 Mode 2
Mode 2 is a method for the connection of an EV to
a standard socket-outlet of an a.c. supply network
utilizing an a.c. EV supply equipment with a cable
and plug, with a control pilot function and system
for personal protection against electric shock placed
between the standard plug and the EV.
The rated values for current and voltage shall be as
follows:
Single Phase
a.c.
Three Phase
a.c.
Rated Voltage
240 V 415 V
Maximum rated
current
32 A 32 A
Current limitations are also subject to the standard
socket-outlet ratings described in 9.2. EV supply
equipment intended for Mode 2 charging shall provide
a protective earthing conductor from the standard plug
to the vehicle connector.
Mode 2 equipment that is destined to be mounted
on a wall but is detachable by the user, or to be used
in a shock resistant enclosure shall use protection
equipment as required by IEC 62752.
6.2.3 Mode 3
Mode 3 is a method for the connection of an EV to an
a.c. EV supply equipment permanently connected to an
a.c. supply network, with a control pilot function that
extends from the a.c. EV supply equipment to the EV.
EV supply equipment intended for Mode 3 charging
shall provide a protective earthing conductor to the EV
socket-outlet and/or to the vehicle connector.
6.2.4 Mode 4
Mode 4 is a method for the connection of an EV to an
a.c. or d.c. supply network utilizing a d.c. EV supply
equipment, with a control pilot function that extends
from the d.c. EV supply equipment to the EV.
Mode 4 equipment may be either permanently
connected or connected by a cable and plug to the
supply network.
EV supply equipment intended for Mode 4 charging
shall provide a protective earthing conductor or
protective conductor to the vehicle connector.
Additional requirements for d.c. EV supply equipment
are given in IEC 61851-23.
6.3 Functions Provided in Mode 2, 3 and 4
6.3.1 Mandatory Functions in Modes 2, 3, and 4
6.3.1.1 General
The following control pilot functions shall be provided
by the EV supply equipment:
a) Continuous continuity checking of the protective
conductor according to 6.3.1.2;
b) Verication that the EV is properly connected to
the EV supply equipment according to 6.3.1.3;
c) Energization of the power supply to the EV
according to 6.3.1.4;
d) De-energization of the power supply to the EV
according to 6.3.1.5; and
e) Maximum allowable current according to 6.3.1.6.
Compliance is checked by inspection and test where
applicable.
If EV supply equipment can supply more than
one vehicle simultaneously, it shall ensure that the
control pilot function performs the above functions
independently at each connecting point.
NOTE — The control pilot functions can be achieved using
a pulse width modulated (PWM) signal and a control pilot as
described in Annex A or by any other non PWM system that
provides the same results and is compatible with Annex A.
EV supply equipment designed for Mode 2 or
Mode 3, using the control pilot conductor and utilizing
accessories according to IEC 62196-2, shall be provided
with control pilot function according to Annex A.
6.3.1.2 Continuous continuity checking of the protective
conductor
While charging in Mode 2, the electrical continuity of
the protective earthing conductor between the ICCB