Cable Protectors

Cable Protectors


Cable protectors are highly demanded electrical products which are used for covering cables and wires. They are also used for covering hoses or pipes in high traffic areas. The main reason for using cable protectors is to protect cables and wires from any kind of external damage. There are a variety of cable protector products available in the market. These are: different types of products. Examples include

* Cable sleeves: These products are made of natural or synthetic materials and are used for protecting hydraulic, pneumatic, and thermally-insulated hoses and cables.

* Cable channels: These products are made of durable, load-bearing materials and are designed for protecting multiple cables.

* Cable covers: These products are used in light-duty applications. These are sold in standard lengths and vary in height and width.

* Wire looms: These products are used for strengthening cables, wires and hose. These products are made from fire resistant materials and are often corrugated. They are made of flexible and flame retardant nylon or polypropylene and are available in colors such as black, gray, and safety yellow.

* Cable surge protectors: These are specialty cable protectors such as electrical outlets and fax/modem protection.

Cable Protection Selection Guide
Buyers should analyze the following points while selecting cable protectors. These are:

* Analyzing the product specifications and features. Cable sleeves are often

* Analyzing the material of construction, such as polyamide, polyester and polypropylene materials.

* Analyzing the products in terms of density, inner diameter (ID), outer diameter (OD), minimum working temperature, and maximum working temperature.

* Analyzing the length, width, and height; number of channels, maximum load capacity, color, and hinge-pin materials in case of cable channels.

* Analyzing the number of outlets, output power capacity, number of phone jacks in case of cable surge protectors.

Approvals and Certifications
All the cable protectors should conform to:

* National Electric Code (NEC)
* Underwriters Laboratories (UL)


Applications
A range of cable protector products are used in numerous areas and industries including:

* Amusement Parks / Fairs
* Aquariums / Zoos
* Arenas / Convention Halls / Sporting Events
* Chemical and Petrochemical
* Construction Sites
* Convention Centers / Airports
* Electric and Gas Utilities
* Manufacturing Plants
* Water and Wastewater Plants

Fiber Optic Cables

Fiber Optic Cables



A fiber optic cable is composed of one or more transparent fibers that are enclosed in protective coverings and strength members. There are different types of fiber optic cables available in the market including:

* Simplex: These cables have a single optical fiber.
* Duplex: These cables have two optical fibers.
* Multifiber: These cables have several optical fibers.
* Patch cord: These short length cables also have connectors.
* Bare fiber: This is a fiber optic core with cladding only.

All of These cables can can have single mode or multimode fibers.

Fire Optic Cable Fire Optic Cable


Important Considerations
Listed below are some of the important parameters that must be considered while purchasing fiber optic cable:

* Fiber core size
* Cable diameter
* Cable weight

Specifications to be Considered
There are certain features and specifications that one must consider while purchasing fiber optic cables. These specifications are as follows:

* Features of Optic Fiber Cables
o Polarization maintaining
o Graded index
o Metallized
* Performance specifications include:
o Wavelength
o Numerical aperture
o Maximum attenuation
o Bending radius


Buyers Guide
Fiber optic cable buyers must check the below mentioned information while buying these cables. The section also contains classification of fiber optic cables that are used in different areas.

Fiber optic cables are manufactured based on their end use. These cables have standard set of markings for indicating their primary use, the name of the manufacturer, a National Electrical Code Rating and a UL approval code. The information also contains the number of fibers contained within the cable, the outside diameter of the cable, and the manufacturer's product nomenclature. All the above points should be checked while purchasing cables.


Fiber Optic Cable Classification
Fiber Cable
Classification General Purpose
Inside Plant Used for device to device wiring.
Horizontal, or Intra-office Used for running on a single floor and between rooms.
Riser or intra-building Used for running between floors in a building, usually in an elevator shaft or conduit.
Plenum Used for meeting fire codes for cable run within an air space.
Inside-Outside Used for transition between outside plant and inside plant.


Manufacturers also provide a metallic armored sheath to the cable for providing added strength and protection against rodents.

Optical fiber cable manufacturers provide a standard color coding for ensuring effective management of cables because of the normally high strand counts contained within a cable. The manufacturers make use of 24 color combinations. Below is the optical fiber cable color identification chart for the use of buyers:

Electric Meters

Electric Meters



An electric meter or electricity meter is a device used for measuring the amount of electrical energy supplied to a residence or company.

There are different types of electric meters available in the market, the most common of them being the (kilo) watt-hour meter or a joule meter. These meters generate invoice of the electricity after recording the measured values. The meter also records the time period for which the electricity was used.

Electric Meter

Unit of Measurement
These meters measure electricity in kilowatt-hour. A kilo watt hour can be explained as the amount of energy used by a load of one kilowatt over a period of one hour, or in other words 3,600,000 joules.

Types of Electric Meters
There are two types of prevalent electric meters being used all over the world. These meters operate by continuously measuring the instantaneous voltage (volts) and current (amperes) and multiplying the two for giving instantaneous electrical power (watts). The two types of electric meters are:

Solid State Meters
Solid state meters are modern electricity meters that display the power used on an LCD, and can be read automatically. These meters are gaining popularity the world over. These meters record useful information like:

* Maximum demand
* Power factor
* Reactive power used etc.

They meters can also have an electronic clock mechanism for computing a value, rather than an amount of electricity consumed. The pricing also varies according to the time of day, day of week, and seasonally.

Most of these meters use a current transformer for measuring current. This essentially means that the main current-carrying conductors need not pass through the meter itself. It can thus be located remotely from the main current-carrying conductors.


Electromechanical Meters
The most commonly used electricity meter is the electromechanical induction meter. This meter operates by counting the number of revolutions of an aluminium disc. This disc rotates at a speed proportional to the power. Thus the number of revolutions is proportional to the energy usage. The meter consumes a small amount of power, around 2 watts. An electromechanical induction meter's performance and accuracy can be affected by creep phenomenon. This occurs when the meter disc rotates continuously with potential applied and the load terminals open circuited.