Ford Ranger EV. Electric Manual - part 28

LESSON 3: SAFETY AND EMERGENCY INFORMATION

3-3

WARNING: LEAD-ACID BATTERIES CONTAIN

SULFURIC ACID. AVOID CONTACT WITH SKIN,

EYES OR CLOTHING. ALSO, SHIELD YOUR EYES

WHEN WORKING NEAR BATTERIES TO PROTECT

AGAINST POSSIBLE SPLASHING OF THE ACID

SOLUTION. IN CASE OF ACID CONTACT WITH THE

SKIN OR EYES, FLUSH IMMEDIATELY WITH

WATER FOR A MINIMUM OF FIFTEEN MINUTES

AND GET PROMPT MEDICAL ATTENTION. IF ACID

IS SWALLOWED, DRINK LARGE QUANTITIES OF

MILK OR WATER, FOLLOWED BY MILK OF

MAGNESIA, A BEATEN EGG, OR VEGETABLE OIL,

CALL A PHYSICIAN IMMEDIATELY.

WARNING: BATTERIES NORMALLY PRODUCE

EXPLOSIVE GASES WHICH CAN CAUSE PERSONAL

INJURY OR DEATH. DO NOT ALLOW FLAMES,

SPARKS OR LIGHTED SUBSTANCES TO COME NEAR

THE BATTERIES. WHEN CHARGING OR WORKING

NEAR THE BATTERIES, ALWAYS SHIELD YOUR

FACE AND PROTECT YOUR EYES. ALWAYS

PROVIDE VENTILATION.

LESSON 3: SAFETY AND EMERGENCY INFORMATION

3-4

LEAD-ACID MODULE SPECIFICATIONS

Dimensions

Length 399 mm (15.275 in)

Width 116 mm (5.567 in)

Height 175 mm (6.890 in)

Weight

19.5 kg (42 lb)

Terminals

Stainless Steel Threads With Lead Contacts

Vent Mechanism

Pressure Relief Valve

[Activated at 13.8 kPa (2 psi)]

Contents

Lead/Lead Oxide Plates (Electrodes)

Glass Mat Separator (Between Electrodes)

Sulfuric Acid Electrolyte

(Entrapped/Absorbed in Glass Mat Separator)

WARNING: CONCENTRATED SULFURIC ACID CAN

CAUSE BURNS TO SKIN AND EYES.

NOTE: For additional information regarding the electrolyte or any of

the other battery components, refer to the Material Safety Data Sheets

(MSDS) in your facility.

LESSON 3: SAFETY AND EMERGENCY INFORMATION

3-5

HIGH VOLTAGE COLOR CODING

High Voltage Color Coding

•

All high voltage cables on the Electric Ranger are orange-colored

by covering the cables with:

– orange-colored convolute.

– orange-colored insulation in the battery pack assembly.

HIGH VOLTAGE WARNINGS

High Voltage Warning Labels

•

Warning labels identify components that are associated with high

voltage.

LESSON 3: SAFETY AND EMERGENCY INFORMATION

3-6

HIGH VOLTAGE HAZARDS

This portion of the course will examine the three hazards associated

with high voltage. Later we’ll discuss how to avoid mistakes that can

lead to electrical accidents. The three high voltage hazards are shock,

arcing and blast.

Hazard One: Electric Shock

People are affected by electric shock in three ways:

1. Muscle Contraction – A 10 ma, 60 hertz current can cause

muscles to contract. A hand exposed to sufficient electrical

current is unable to release its grip. Chest muscles paralyze and

respiration ceases if sufficient current passes through the chest.

2. Fibrillation – Fibrillation is the disruption of a body’s normal

heartbeat. The heart beats because the brain sends it an electrical

signal to do so. Sixty (60) volts are enough to interrupt the

electrical signal from the brain and cause the heart to stop

pumping. The current must follow a path through the body

(hand-to-hand, etc.) in order for fibrillation to occur.

3. Tissue Damage – Tissues within the body and at the current exit

point can be damaged by electrical shock when the current

exceeds 5 amps. Damage to tissue is caused by heat generated

from the current flow. If the energy delivered by the electrical

shock is high, the heat cannot be dissipated and body tissue

is burned.

•

Susceptibility to electric shock varies from person to person,

depending on their physical attributes (skin thickness, etc.).

•

An open cut can reduce a person’s natural resistance, and moist

skin will increase the chances of an electric shock taking place.

Even a relatively small electric shock can cause serious injury. A

person’s involuntary muscle reaction to a current as low as 3 ma

can result in bruises, bone fractures, and possible death caused by a

collision or fall.