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Saturday 12 September 2015

cable ladders and trays in substations


  • Metallic cable trays shall have suitable strength and rigidity to provide adequate support without undue sag and shall not have sharp edges, burrs or projections that can damage the cable insulation or jackets
  • Cable tray shall be designed to provide a minimum of 20 % spare space
  • Cable tray deflection shall be restricted to a maximum of 12 mm for all span lengths. Technical details to arrive this term shall also be furnished.
  • Cable tray shall be supplied with suitable rubber bumpers at locations of
  • safety hazards.
  • Cable tray shall be fabricated either from corrosion resistant metal such as aluminum alloy or carbon steel with corrosion resistant coating such as zinc coatings
  • Ladder tray shall be prefabricated structure of two longitudinal side rails connected by individual transverse members (rungs) with openings in the longitudinal direction. Spacing of rung shall be 150 mm per NEMA VE-1. When the number of cables to be accommodated per tray is less, then spacing of rung can be 225 mm or 300 mm per NEMA VE- 1
  • Fitting is a device, which is used to change the direction in either horizontal or vertical planes, or size of cable tray system. Fittings shall be of the same material as the straight section part of the cable tray. The manufacturer shall supply all fittings as required.
To be continued 




18 comments:

DnDaims Web Hosting said...

We are manufacturing Cable Tray in Pakistan, Cable Ladder in Pakistan,
Perforated Cable Tray in Pakistan, Cable Tray Accessories in Pakistan,
U-Channel Sport in Pakistan, In the electrical wiring of buildings, a
cable tray system is used to support insulated electrical cables used
for power distribution, control, and communication with fitting such
as Bends in Pakistan.
Cable tray in Pakistan

DnDaims Web Hosting said...

Cable trays are normally manufactured with corrosion-resistant materials. The selection of material for the cable tray is normally depending upon the environment of the installation.
The following are some materials used for cable trays.
Aluminum has a lightweight and high resistance to corrosion. It is also non Magnetic so electrical losses reduced to its minimum values.
Steel has high strength and corrosion resistance. Steel structured cable trays are used to carry heavy cables. Although steel has corrosion free its weight is heavier.
Stainless steel has high yield strength and higher resistance to corrosion. It is formed by AISI 316 Stainless steel. Stainless Steel has resistance to chemicals and corrosion.
There are a number of companies manufacturing cable trays in Pakistan. We are manufacturing cable tray in all over Pakistan with all materials.
Cable Tray

Unknown said...

Electrical safety management: Kenco Electric provides the best electrical safety. We have all types of industrial electrical work on a contract basis in Delhi NCR.
Kenco Electric

DnDaims Web Hosting said...

Alfazal Engineering Cable Types:
Al-Fazal Engineering started manufacturing cable tray in 2007 since then we are providing cable trays to all major companies in Pakistan.
Cable tray systems are alternatives to normal wire ways and electrical conduit, which completely enclose cables and protect from environmental hazards.
Cable trays are used to support all types of wiring, such as.
1. High Voltage Power Lines.
2. Power Distribution Cables.
3. Fiber Optical Cables
4. Telecommunication cables.
5. Control cables.
Cable trays support and protect both power and signal cables and also facilitate upgrading, expanding, and relocating networks. Cable tray are designed in such a way to protect cables from environmental and other hazards.
Some of Cable tray types as follows.
1. Ladder-type Cable Tray.
2. Solid Bottom Cable Tray.
3. Wire Mesh Cable Tray.
4. Trough Cable Tray.
5. Perforated Type Cable Tray.

• Ladder-type Cable Tray: Ladder type cable trays are supported by rungs which provide access to cables from bottom and top. In ladder type cable trays rungs are used to properly tie cables. Ladder-type cable trays are used for heavy cables as it provides more ventilation then perforated type.
• Perforated Cable Tray: Perforated type cable trays are manufactured with a perforation at the bottom to provide proper ventilation. Perforated type cable trays support then ladder type.
• Solid-bottom Cable tray: Solid Bottom cable trays are normally used for communication cables to protect from radiofrequency/electromagnetic interference.
• Wire mesh cable tray: Wire mesh cable trays are designed by welding stainless steel wires together forming a basket. Wire mesh cable trays are normally used for telecommunication cables.
We are manufacturing and providing cable trays to all major companies in Pakistan. Alfazal Engineering is the only company in Pakistan manufacturing all types of Cable Trays. We are also providing services for the installation of cable trays in Pakistan.
Cable tray

DnDaims Web Hosting said...

Cable tray use for electrical cable distribution in the building’s structural plants and pipe racks, cable laying cable routing at cable tray also use for protection. Cable tray use for all control and power cables cable tray also use as a mechanical protection of cable protect from falling of any object directly at live cable, cable trays are manufactured of different types.
Cable ladder
Perforated cable tray
Cable duct
Cable Mesh
Cable tray made of different material like mild steel, stainless steel, aluminium and fiber glass/PVC.
Cable tray in Pakistan

DMV METAL KRAFTS said...

Thanks for sharing this blog. I stumbled here while I was looking to learn more about Cable Management
Cable Tray Manufacturer

DnDaims Web Hosting said...

Cable tray used for electrical cable distribution in the building’s structural plants and pipe racks, cable laying cable routing at cable tray also use for protection. Cable tray used for all control and power cables cable tray also use as mechanical protection of cable protect from falling off any object directly at the live cable, cable trays are manufactured of different types.
Cable ladder
Perforated cable tray
Cable duct
Cable Mesh
Cable tray made of different materials like mild steel, stainless steel, aluminum, and fiberglass/PVC.
Cable tray fabricated from mild steel for perforation used CNC laser cutting and auto rolling forming machinery and other manual bending punching and dip in the hot zinc or powder coating, painting for protection from rusting, as per atmosphere condition some time we use stainless steel or aluminum or fiberglass. Selection of material depends on area condition, we can install the cable tray at the structure with the walls or hanging from the roof with the help of rods, sometimes we use the cover at tray to protect the cables from sunlight, cable tray is the part of electrical installation, perforation in the cable tray help out to exhaust the heat of power cable due to ventilation we can reduce the cable temperature.Cable tray in Pakistan

Emma Jasmine said...
This comment has been removed by the author.
Emma Jasmine said...

Cable trays are normally manufactured with corrosion-resistant materials. The selection of material for the cable basket is normally depending upon the environment of the installation. They designed to provide a minimum of 20 % spare space. Which is used to change the direction in either horizontal or vertical planes, or the size. In cable tray system shall be fabricated either from corrosion-resistant metal such as aluminum alloy or carbon steel.

DnDaims Web Hosting said...

Alfazal Engineering providing services for Cable tray, Tower tray, and other sheet metal work at very economical prices with the best delivery time all over Pakistan. tower trays for the refinery.
Cable Tray street lighting poles manufacturer in Pakistan by Al-Fazal Engineering
Perforated Cable Tray Made of Sheets With Perforation on the based. Cable Gland, Cable tray distributor in Pakistan. We are available for your support 24/7 and 100% guarantee for quality. We never compromise in quality.
Cable tray

DnDaims Web Hosting said...

Thanks, you inform us hope we never miss this account and your given information is very helpful for us we appreciate you guys.
Cable Tray

DnDaims Web Hosting said...

Alfazal Engineering providing services for Cable tray, Tower tray, and other sheet metal work at very economical prices with the best delivery time all over Pakistan. tower trays for the refinery.
Cable Tray street lighting poles manufacturer in Pakistan by Al-Fazal Engineering
Perforated Cable Tray Made of Sheets With Perforation on the based. Cable Gland, Cable tray distributor in Pakistan. We are available for your support 24/7 and 100% guarantee for quality. We never compromise in quality.
Cable Tray

Unknown said...

We are a manufacturer of cable trays all types.
Cable trays Perforated Manufacturer
Cable tray Duct type
ladder cable tray
Cable trays Ladder-type
Cable tray Mesh type
Cable tray Hot-dip galvanized
Cable tray GI
Cable tray
Cable tray Powder-coated
cable trays all type in Pakistan...
We are a manufacturer of cable trays all types.
Cable trays Perforated Manufacturer
Cable tray Duct type
ladder cable tray
Cable trays Ladder-type
Cable tray Mesh type
Cable tray Hot-dip galvanized
Cable tray GI
Cable tray
Cable tray Powder-coated
cable trays all type in Pakistan...
We are a manufacturer of cable trays all types.
Cable trays Perforated Manufacturer
Cable tray Duct type
ladder cable tray
Cable trays Ladder-type
Cable tray Mesh type
Cable tray Hot-dip galvanized
Cable tray GI
Cable tray
Cable tray Powder-coated
cable trays all type in Pakistan...

DnDaims Web Hosting said...

Cable tray are typically installed in ceilings, walls, and floors to keep cables out of sight and protected from damage. They are commonly used in industrial plants, power plants, commercial buildings, and other large facilities in Pakistan.
Cable Tray Accessories

Anonymous said...

Thanks for sharing. love to see more this kind of informative content.
cable tray support channel

Floor Safety Store said...

Thanks for sharing. love to see more this kind of informative content.
Rubber Backed Floor Mats

Paraflex Wires said...

Thanks for sharing this useful information with us. I would like share that Paraflex is one of the leading cable & wire manufacturers in India. Here you can find wide range of affordable wires.

Nouveaux Industries Pvt Ltd said...
This comment has been removed by the author.

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