M6c11

44問 • 1年前

問題一覧

Cables have a specified maximum continuous operating temperature and for many types in general, it is undesirable to contribute more

than 40⁰C rise by electrical heating and that operating temperature and installed life are directly related

The temperature rating of an airframe cable is determined by

its construction

The receptacle is normally part of the equipment or

structure and is stationary.

The removable half which mates with the receptacle and is usually

at the end of a cable/lead

The purpose of keyways on a connector to

allow only plug and receptacle of the same orientation to be connected together

TNC used in

a high vibration area,

The TNC (threaded nut coupling) series connector is a threaded version of the BNC and operates to the same specification as the

BNC connector

There are two types of Co‑axial connector

TNC and BNC

Restricted entry for the ring tongue terminals are

identified by a thin coloured band along the barrel insulator.

What is the purpose of screening on a coaxial cable?

To prevent EMF radiating out from the Core cable and prevent induced EMF into the core

Material commonly used as the dielectric in Co‑axial cable is

polyethylene

Tin plated copper maximum continuous temperature →

135ºC

Nickel clad plated copper maximum continuous temperature →

260ºC

What cable would you use where temperatures are going to exceed 200 degrees C?

Nickel plated

What type of insulation cannot be stripped with thermal strippers?

PTFE

coating Kapton insulation with a layer of Teflon is a way of

reducing the risk of arc tracking

Oxide on exposed silver plated wire is

an insulator

Interconnect cables employ

thinner insulation than airframe types,

An interconnect cable has what insulation?

Thinner than airframe cable

Dielectric loss in coaxial cable result from

heating the dielectric material (insulation)

Use of crimped splices in

aircraft electrical cables

A crimped splice is never to be used in

a multi-core cable

Compared to other types of electrical connectors crimping does not have the advantage of

assembly without tools

The TNC (threaded nut coupling) series connector is a threaded version of the BNC and operates to the same specification as

the BNC connector.

The TNC series of connectors are used

predominately where vibration is a major factor as they rely on external locking for security.

Mechanical protection can be provided for the cable by routing the bundles through either

flexible or rigid conduit.

The size of the conduit is normally an inside diameter

25% larger than the diameter of the cable bundle being encased.

How are flexible hoses categorized?

By maximum pressure

There are commonly four types of cable strippers available which are:

❖A rotary device which cuts around the cable ❖ A four-action device, which is a high precision cut and strip tool.

Thermal removes the insulation

by melting

Aluminium cable where large amounts of current must be carried for

long distances,

There are a number of factors to consider when choosing the correct cable, these are:

Flexibility of the cable.

The most commonly used wrapped insulation material is

Kapton

Co‑axial cable is used as a transmission line for

radio frequency (RF) signals

High tension leads or high-tension cables or spark plug wires or spark plug cables are the wires that connect

a distributor, ignition coil, or magneto to each of the spark plugs in piston engines.

A thermocouple is an electrical device consisting of

two dissimilar conductors forming electrical junctions at differing temperatures.

The basic crimped contact connector comes in two parts

the receptacle and the plug

The prime considerations that govern the construction of any electrical cable are that it must be:

able to withstand the applied voltages

knuckling of conductors which could be severe enough to penetrate the insulation This was induced by applying

excessive pull through forces

X on an electrical cable indicates

AC power

Occurs when de‑icing fluid contaminate silver plated conductors, an electrical fire can result. Accordingly, silver plated conductors should not be employed in areas where

de‑icing fluid can be present.

PTFE-type insulations are often sold under the trade name

Teflon or Tefzel

One special type of cable used exclusively for various digital electronic systems is called

data bus cable’.

Data bus cable typically consists of

a twisted pair of cables surrounded by electrical shielding and insulators

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問題一覧

Cables have a specified maximum continuous operating temperature and for many types in general, it is undesirable to contribute more

than 40⁰C rise by electrical heating and that operating temperature and installed life are directly related

The temperature rating of an airframe cable is determined by

its construction

The receptacle is normally part of the equipment or

structure and is stationary.

The removable half which mates with the receptacle and is usually

at the end of a cable/lead

The purpose of keyways on a connector to

allow only plug and receptacle of the same orientation to be connected together

TNC used in

a high vibration area,

The TNC (threaded nut coupling) series connector is a threaded version of the BNC and operates to the same specification as the

BNC connector

There are two types of Co‑axial connector

TNC and BNC

Restricted entry for the ring tongue terminals are

identified by a thin coloured band along the barrel insulator.

What is the purpose of screening on a coaxial cable?

To prevent EMF radiating out from the Core cable and prevent induced EMF into the core

Material commonly used as the dielectric in Co‑axial cable is

polyethylene

Tin plated copper maximum continuous temperature →

135ºC

Nickel clad plated copper maximum continuous temperature →

260ºC

What cable would you use where temperatures are going to exceed 200 degrees C?

Nickel plated

What type of insulation cannot be stripped with thermal strippers?

PTFE

coating Kapton insulation with a layer of Teflon is a way of

reducing the risk of arc tracking

Oxide on exposed silver plated wire is

an insulator

Interconnect cables employ

thinner insulation than airframe types,

An interconnect cable has what insulation?

Thinner than airframe cable

Dielectric loss in coaxial cable result from

heating the dielectric material (insulation)

Use of crimped splices in

aircraft electrical cables

A crimped splice is never to be used in

a multi-core cable

Compared to other types of electrical connectors crimping does not have the advantage of

assembly without tools

The TNC (threaded nut coupling) series connector is a threaded version of the BNC and operates to the same specification as

the BNC connector.

The TNC series of connectors are used

predominately where vibration is a major factor as they rely on external locking for security.

Mechanical protection can be provided for the cable by routing the bundles through either

flexible or rigid conduit.

The size of the conduit is normally an inside diameter

25% larger than the diameter of the cable bundle being encased.

How are flexible hoses categorized?

By maximum pressure

There are commonly four types of cable strippers available which are:

❖A rotary device which cuts around the cable ❖ A four-action device, which is a high precision cut and strip tool.

Thermal removes the insulation

by melting

Aluminium cable where large amounts of current must be carried for

long distances,

There are a number of factors to consider when choosing the correct cable, these are:

Flexibility of the cable.

The most commonly used wrapped insulation material is

Kapton

Co‑axial cable is used as a transmission line for

radio frequency (RF) signals

High tension leads or high-tension cables or spark plug wires or spark plug cables are the wires that connect

a distributor, ignition coil, or magneto to each of the spark plugs in piston engines.

A thermocouple is an electrical device consisting of

two dissimilar conductors forming electrical junctions at differing temperatures.

The basic crimped contact connector comes in two parts

the receptacle and the plug

The prime considerations that govern the construction of any electrical cable are that it must be:

able to withstand the applied voltages

knuckling of conductors which could be severe enough to penetrate the insulation This was induced by applying

excessive pull through forces

X on an electrical cable indicates

AC power

Occurs when de‑icing fluid contaminate silver plated conductors, an electrical fire can result. Accordingly, silver plated conductors should not be employed in areas where

de‑icing fluid can be present.

PTFE-type insulations are often sold under the trade name

Teflon or Tefzel

One special type of cable used exclusively for various digital electronic systems is called

data bus cable’.

Data bus cable typically consists of

a twisted pair of cables surrounded by electrical shielding and insulators