High-Voltage Electrical Disconnect Features - Ford FOCUS ELECTRIC VEHICLE 2016 Emergency Response Manual

HIGH-VOLTAGE ELECTRICAL DISCONNECT FEATURES

WARNING
:
ELECTRIC VEHICLES DAmAGED by A CRASH mAy HAVE COmPROmISED
HIGH VOLTAGE SAFETy SySTEmS AND PRESENT A POTENTIAL HIGH VOLTAGE ELEC-
TRICAL SHOCk HAzARD. ExERCISE CAUTION AND WEAR APPROPRIATE PERSONAL
PROTECTIVE EqUIPmENT (PPE) INCLUDING HIGH VOLTAGE SAFETy GLOVES AND
bOOTS. REmOVE ALL mETALLIC jEWELRy, INCLUDING WATCHES AND RINGS. ISO-
LATE THE HIGH VOLTAGE SySTEm AS DIRECTED by THE FORD EmERGENCy RE-
SPONSE GUIDE FOR THE VEHICLE. FAILURE TO FOLLOW THESE INSTRUCTIONS mAy
RESULT IN SERIOUS PERSONAL INjURy OR DEATH.
The following features have been incorporated into Focus electric vehicles to allow for
either simple or automatic shut-off of the high-voltage electrical systems.
• High-voltage fuse — In the event of a high-voltage short circuit, the
high-voltage fuse opens, isolating the high-voltage system.
• High-voltage interlock circuit — Whenever a high-voltage connector
is disconnected, the high-voltage interlock circuit opens and isolates
the high-voltage system. The circuit will also open if a high-voltage cable is
cut, broken, or severed. This circuit is wrapped around high-voltage cables.
• Ignition is in the OFF position when the vehicle ready light is off. Any time
the ready light is off, the high-voltage system is isolated. If the vehicle
ready light is on, press the start button to turn off the ignition.
• Battery high-voltage service disconnect — Whenever either of the battery
high-voltage service disconnects are removed, the high-voltage system is
isolated. For additional information, refer to High Voltage Service Disconnect
in this manual.
• Thermal sensors — If the battery is exposed to hot ambient conditions
and/or is being driven aggressively with compromised cooling, power
limits will be employed to prevent overheating. However, if the battery is in
use and becomes too hot, contacts will open and the vehicle will
shut down.
FCS-21200-16 2016 Focus Electric Emergency Response Guide Page 4 of 22