What is wire:

A wire is a flexible metallic conductor, especially one made of copper, usually insulated, and
used to carry electric current in a circuit

What is bundle:Wire bundling is when you take 2 or more electrical cables and bundle them
together using a specific bind. The purpose of the bundling is to keep specific cables together
over a medium to long distance

What is harness:The wiring harness is the combination of electrical cables, or assembly of

wires, that connects all electrical and electronic (E/E) components in the automotive vehicle,
like sensors, electronic control units, batteries, and actuators. The wiring harness handles the
energy and information flow within the E/E system to fulfill primary car functions, such as
steering and braking as well as secondary car functions, such as ventilation and infotainment.

What is local and global slack: local slack is between 2 support connectors. global slack is all
along the bundle
What is drip loop : A drip loop is a simple way to prevent water from traveling down the cord
and into the outlet. Instead of the cable going straight to the outlet, drip loops have the cable
go below the outlet before coming back up. The cord often has a U shape.
What is service loop: service loop (plural service loops) An extra length of wire or cable
included in an electrical or electromechanical assembly for neatness, accessibility, freedom of
movement or future serviceability.

What is Emi and how it effects our harness:

What is Emc:

What is a backshell and what are its uses: A backshell is an accessory that mounts to the rear
threads of a connector to enhance its operational characteristics. The primary function of a
backshell is to provide strain relief, which minimizes stress from the cable, on the junction
where the wires terminate to the contacts.

What is wiring diagram and what info we get from it: A wiring diagram is a simple visual
representation of the physical connections and physical layout of an electrical system or
circuit. It shows how the electrical wires are interconnected and can also show where fixtures
and components may be connected to the system.
What is the difference b/w Schematic diagram and wiring diagram: A schematic shows the plan
and function for an electrical circuit, but is not concerned with the physical layout of the wires.
Wiring diagrams show how the wires are connected and where they should located in the
actual device, as well as the physical connections between all the components.

What are protective coverings and where will we find the command in catia: wire
protection prevents damage caused by wire vibration damage, abrasions and incidental
contact with other pieces of heat-producing equipment. Our wire protection can also provide
cable management and identification.
In the Electrical Part Design workbench, select Insert > Protective Covering . The Instantiate
Protective Covering dialog box appears: To retrieve a protective covering, do one of the
following: Select From database, then click Browse and browse for a protective covering in
the database or in your session.

What is a conduit: An electrical conduit is a tube used to protect and route electrical wiring in
a building or structure. Electrical conduit may be made of metal, plastic, fiber, or fired clay.
Most conduit is rigid, but flexible conduit is used for some purposes.

What are sleeves:

Cable sleeves or sheathing offer protection for cables from abrasive environments whilst also
optimising space as they can be used to bundle cables together or insulate a single cable.
Their use is ideal for avoiding tangles, hiding unsightly cables and making a cable area safe.
A sleeve can be flexible, solid, expandable, braided or mesh, in fact they are available in
 multiple materials, shapes and sizes. RS offers a wide range of sleeving which can be
durable and versatile.
What are the benefits of using cable sleeves?
 Improved Cable Management
 Protection
 Flexibility
 Extended Cable Lifespan
 Safety
 Prevention of Interference
 Aesthetics

What is a clearance:

What is segregation:

Difference b/w segregation and clearance

What is seperation: Separation of Band
I low voltage cables and Band II high
voltage cables is mandatory to stop electrical interference. This is to remove
problems between power and data cables due to electrostatic or
electromagnetic fields surrounding the installation.

How we start routing in catia:

( At this point, you can select any of the connectors or branch points to start the route.
When you select a branch point, the bundle you select will help)

Defining an electrical harness requires two steps. You must first define the required
connectors and connection points. Once you have these connections, you are ready to begin
defining the geometric bundle that links the various connection points. These geometric
bundles will behave as a space reservation for the wiring they will contain. In this section
of the course, you will not be defining the actual wires within the geometric bundle, but
rather just the overall size and shape of the geometric bundle that will contain the wiring.
There are two workbenches involved in electrical harness design. They are the Electrical
Harness Assembly and the Electrical Harness Installation workbenches. The Electrical Harness
Assembly workbench will allow you to work with the geometric bundle as a whole. The
Electrical Harness Installation workbench will allow you to define the specific bundle
segment and route the bundle. The two workbenches are used simultaneously to define the
geometric bundle. Although the Electrical Harness Installation workbench is a separate
workbench, it is generally only accessed through the Electrical Harness Assembly workbench
when defining a specific bundle segment. This is a similar behavior to the Sketcher and Part
Design workbenches. You generally do not access the sketcher workbench directly, but instead
you access sketcher through the Part Design workbench. In our case, the Electrical Harness
Assembly workbench works in the product environment, whereas the Electrical Harness
Installation workbench works with a specific branchable part in the product. In this course,
you will not be defining the specific wires within the geometric bundle. Instead, you will
be defining the bundle as a whole for space reservation and connectivity information and not
to define pin to pin connectivity. To define pin to pin connectivity, you will need to study
the Electrical Wire Routing workbench. With that said, keep in mind, you can always define a
geometric bundle per wire if desired. This will emulate defining specific connectivity, but
you will find that it requires a lot of time and work when dealing with smaller wires.

Where is position command in catia:

What are split, arrange bundle, transfer bundle command in catia:

Split:This will split the bundle into two segments.
Notice your bundle
segment was renamed back to the default naming scheme
arrange bundle:
transfer bundle command:
Command used connect connector with backshell:

Where do we find geometrical set in catia:

What is elctrical system architecture:

Ata chapters:

Types of connectors used:

What is backshell clocking:

How to check electrical connectivity and different ways to check connectivity

Different commands in catia:
How do we calculate length of a bundle:
What is bend radius and how to calculate
What is bundle dia and how to calculate
Life cycle of the harness
Grounding and bonding
Harness lifecycle