Underground ducting systems and manhole chambers have a very key role to play when it comes to protecting and organizing extensive cable networks. This is particularly true in the case of telecom projects where these chambers, placed on key junctions or splicing points, provide better accessibility, scalability, and safety at the same time.
To make sure you choose a suitable precast concrete manhole chamber for your telecom project in the UAE, you have to familiarize yourself with a few industrial standards and their specifications.
The industry standards JRC4, JRC 12, and JRC 14 for manhole chambers are widely used in projects that involve telecom providers like Etisalat and Du in the UAE and some other parts of the UAE.
This blog explores these manhole chambers in detail, highlighting their key features and applications, so keep on reading till the end.
- What Does JRC Mean?
- Key JRC Manhole Chamber Standards
- JRC 4 Manhole Chamber
- JRC 12 Manhole Chamber
- JRC 14 Manhole Chamber
What Does JRC Mean?
JRC stands for jointing and resource chambers. It refers to standardized precast or cast-in-place manhole chamber designs that are mainly employed in telecom projects. These chambers facilitate safe and efficient splicing, routing, and terminating of underground cable networks both in residential and commercial development projects.
JRC manhole chambers are built to meet very specific telecom operator standards in terms of their sizes, materials, strength, functionality, and load capacity.
Key JRC Manhole Chamber Standards
There are 3 most common and widely recognized JRC manhole chambers, namely JRC 4, JRC 12, and JRC 14 manhole chambers, that are used for telecommunication networks.
The following is a brief overview of these manhole chambers that can help you distinguish them with ease.
- JRC 4 Manhole Chamber
The JRC 4 is a top-tier precast manhole chamber that has the ability to meet the rigorous industry demands in terms of its reliability and durability. This is the smallest manhole chamber of the series, which is used in cases where cable entries are limited.
Key Features
- This manhole solution gives you a quicker way to carry out splicing, inspection, and maintenance of your telecom connections.
- These chambers have inner dimensions of about 915 × 445 × 750 mm.
- They feature sand blocks, cable bearers, a lockable hinged frame and cover, and duct bellmouths.
- The compact design of these chambers makes them perfect for shallow-depth installations.
- JRC 4 manhole chambers give you modular stacking sections and quick installation, which can be done in just an hour with the right tools.
- These precast manhole covers and chambers provide greater on-site customization flexibility.
Uses
- These are used in telecommunication infrastructures to provide secure housing for cables and connections.
- These can be integrated into residential and commercial areas where you need 24/7 telecommunication support.
- These work especially well in low-capacity telecom routes or fiber-to-home deployments.
- JRC 12 Manhole Chamber
JRC 12 manhole chambers give you a combination of capacity and compactness with their medium sizes. These chambers offer unparalleled protection and longevity while meeting very specific project requirements at the same time.
Key Features
- These chambers have 1220 × 685 mm opening dimensions and about 160mm frame depth.
- JRC 12 manhole chambers are available both in concrete and ductile iron variants.
- These manhole chambers have a payload range of 80-350 kg or about 40 tons, and they are equipped with safety grids and locks to ensure your telecommunication systems stay unharmed.
- These are available in multiple configurations to meet the very specific demands of urban or rural telecommunication networks.
Applications
- JRC 12 manhole chambers are mostly used in commercial districts, main distribution routes, and secondary telecom corridors where JRC 4 manhole chambers are not effective.
- These are used to ensure optimal performance and seamless integration in Etisalat’s telecommunications networks in the UAE.
- These can be used both for new installations and for upgrading existing networks.
- JRC 14 Manhole Chamber
If you are looking for manhole chambers for high cable traffic applications, trunk cable routing, and future-ready infrastructures, you can consider JRC 14 chambers that are engineered to provide maximum protection to underground cables and other telecommunication systems.
These chambers are the largest of the three, and they can ensure the longevity and integrity of complex and extensive telecommunications infrastructure.
Key Features
- These are made from premium grade concrete and which offers maximum heat, weather, chemical, and impact resistance.
- Just like GRP manhole chambers, JRC 14 chambers can be customized and configured based on your specific project requirements, which guarantees higher efficiency and longer life of your telecommunication networks.
- These chambers have dimensions of 1830 × 685 mm, and they require at least 6 covers.
Applications
- These manhole chambers can be used in roadways and high-traffic areas.
- These are also suitable for urban centers and carriageways.
- JRC 14 manhole chambers are designed to provide ease of installation and precise compatibility.
- Major telecommunications routes and data center zones also use JRC 14 manhole chambers to manage their heavy cabling and multiple duct entries.
Conclusion
The right selection of JRC manhole chambers is crucial to ensure your telecommunication systems work optimally and are fully secured at all times. When choosing between JRC4, 12, and 14 chambers, always make sure to consider cable volume, load requirement, chamber capacity, durability, installation speed, and specific project requirements.
If you want fast deployment in low-load applications, you can use JRC 4 manholes without any worry. For applications where you need both more space and compactness, JRC 12 chambers are your best bet.
And finally, if you need to set up extensive telecom systems in heavy traffic zones, JRC 14 chambers are recommended by the experts.
Just make sure the chamber you choose meets structural safety codes and your local telecom standards to stay on the safe side. This can ensure you are able to create a robust and future-ready telecommunication system that delivers the best value. You can visit us at Naran Precast Concrete Co. to explore our premium-grade concrete and GRP manhole chambers and manhole covers for all residential, commercial, and telecommunication applications.