Dhruva Technologies Private Limited Jhandewalan, Delhi

The function of a telecommunication shelter is to protect the equipment required for a GSM/CDMA network from the harsh outside environment. Although most of these shelters look the same, their design may vary according to the environmental conditions prevailing in a given region. Dhruva shelters are designed to provide the best possible protection from the environment, flexibility in installing the integrated equipment, together with unmatched quality. Our telecom shelters are designed with present space and future expansion requirements of the clients in mind.   Features:   Shelters are prefabricated Structurally stable Modular Cells Self load bearing Panel locking inside the cell Non deteriorating Odorless Parasite/Fungi/moth/vermin proof Thermally insulated Watertight and dust proof Easy and quick to assemble

Surge Protection Device provides protection against electromagnetic impulses from lightning and to the electrical and electronic equipment located on the structures. Transient over-voltages have existed since the creation of electrical networks, the need for protection is nowadays much greater due to advancement in technology making electrical & electronic components more sensitive to electromagnetic disturbances. Dhruva Technologies offers the most enhanced range of surge protection devices for power, data and communication lines: Protection of Power Line: Type 1 SPD Type II SPD Type III SPD Protection of Data and Communication Lines: Telephone Lines Data Lines Computer Lines Coaxial Lines

It is a non electronic construction that has been designed to create an upward propagating streamer earlier than conventional air terminals or other objects on the earth. Protec ESE does this by collecting and storing ground charge during the initial phase of a thunderstorm development and emits strong and consistent upwards streamers to intercept leaders.   Features: Meets NFC 17-102 & UNE 21186 standards Tested to withstand multiple 40kA impulses High quality anti-corrosive and conductive coating Low wind resistance and light weight 5 years replacement warranty Available with 20, 40 and 60 micro second delta T

Protec ASEM soil enhancement material is self compacting with high hygroscopic properties. It is thermal insulating with high electrical conductivity. The soil enhancement material increases the electrode surface in contact with soil and reduces the contact resistance between the electrode and soil. It assures a low resistance electrical pathway for current dissipation. The Protec ASEM soil enhancement material has low resistivity, small particle size and high specific gravity.   Features:   Highly conductive Highly Hygroscopic Insoluble in water Self compacting Very stable to temperature change Non-corrosive ROHS compliant

The LD-250® Lightning Detector puts a live lightning map on your laptop or desktop computer. Within milliseconds of a lightning strike the detector beeps and your computer displays the strike location. The LD-250's direction-finding antenna measures lightning strike direction while the LD-250's receiver estimates distance from received signal strength. Advanced signal processing in software improves distance accuracy, reducing the effects of strike-to-strike variations in strike energy.   Features:   Can warn for both close & severe thunderstorm Strike rates, both close strikes/minute & total strikes/minute are shown Three display range - 160, 320 and 480km Lightning data is live Connects to USB or RS232 port and works even if computer is off Connect to a GPS Receiver and track lightning from your car, truck or boat.

Protec AMES is an economical, maintenance free, low resistance kit for all types of earthing systems. It consists of ground electrode, soil enhancement compound, terminal plate and polyplastic pit cover.   Features:   Available in high quality galvanized steel or 250 micron copper clad steel Exothermically welded Terminal Plate Supplied with a Protec Advanced Soil Enhancement Material (Protec ASEM) operates in different temperature range Provides 30% lesser earth resistance as compared to regular 3mtr earth electrode More than 90% of electrode surface in contact with surrounding soil High moisture retention capability High electrical conductivity High Thermal Stability High Corrosion Resistance Eliminates risk of smoking electrodes Eliminates requirement of deep hole electrodes Maintains stable low earth resistance in all seasons Available in 1.5mtr lengths for easy shipping and handling RoHS approved soil enhancement compound 20kA Short Circuit Current Handling Capability 10 Year Warranty

High accuracy timing GPS and signal captureCan be configured with up to three independant serversRemote administration and firmware updatesWeatherproof and UV resistant sensor Description The LRX-1 Lightning Network Detector allows users to create a lightning detection network. In the standard configuration, data from multiple distributed lightning detectors is sent over the internet to a central server for processing.  Once the exact strike location is calculated the data is both stored in a database on the server and sent back over the internet to live display clients.  Static and animated lightning maps can also be created for display on a web site.  

Condition : Sensor Based Lighting System

Power : 200Wt

Packaging Type : Paper Box, Thermocol Box

Protec Isolation Spark Gap is used to equalize potential between lightning protection earthing system and functionally separate earthing systems during rise in ground potential due to lightning strikes.   Features:   Available in 50kA and 100kA Peak Surge Current handling capacity Thermal conductive fire proof and water proof resin encapsulation Weatherproof enclosure Quick response time High energy handling capability High Thermal Stability As per UNE 21186; NFC 17-102 recommendations of lightning equi-potential bonding

Protec AGES is the only earthing system that can operate in snow, rocks, sand or marshy environments. It can also be installed in areas where space is limited. Supply pack is in built with ground electrode with terminal plate packed with Protec Soil Enhancement Material (Pro ASEM-CB) in a canvas bag duly placed in thick PVC pipe with holes for smooth water flow. No consumables on deployment.   Features:   50mm dia Graphite Electrode molded on 16mm x 250 micron copper clad steel Exothermically welded Terminal Plate Supplied with a Protec Soil Enhancement Material (Protec ASEM-GB) High moisture retention capability High electrical conductivity High Thermal Stability High Corrosion Resistance Available in 0.75mtr & 0.80mtr sections as alone and also packed in canvas bag placed inside the thick PVC pipe for easy shipping and handling. Length can be increased by joining 2 sections with a coupler. RoHS approved soil enhancement compound. 20kA Short Circuit Current Handling Capability 5 Years Warranty

Lightning rods were originally developed by Benjamin Franklin in eighteenth century. These are metal rods installed over a structure as preferred points for a lightning strike. These terminals are connected to a network of horizontal and vertical conductors that are terminated to earthing terminals. The network of rods, conductors and earth terminals covers the protected structure in a Faraday Cage.   Features: Tower type constructions with small area to protect. Mosque Minaret, Light House, Sentry Box etc Special Point Protection in Faraday Caged construction Chimney projections, equipment especially on flat roofs, elevator towers etc.

Frangible shelters are extra light FRP, Prefabricated PUF insulated modular shelter. The shelters are fit for deployment on any modern Air Field under International Civil Aviation Organization (ICAO) norms. As per International Standard and ICAO norms every airport should have frangible shelter for Localizer, Glide Path and other navigational system installed at the shoulders of runway. If it is hit by an aircraft wings then the shelters collapse without hurting wing of the aircraft.The design of our Frangible Shelter are evaluated and certified by CADES, Bangalore, an ISO 9001: 2000, ISO/IEC 27001, AS9100 and approved by Directorate General of Civil Aviation (DGCA) India, and Center for Military Airworthiness and Certification (CEMILAC) India.

There are many advantages of using exothermic welding. The most important one being that the process produces a molecular joint and not just a mechanical one in between the conductors. It is produced through a starting reactant which provides enough energy to activate the welding reaction. This takes place quickly and safely inside a graphite mold. The mold is designed specifically for a certain union depending on the elements to be welded and the joint type required. Apliweld® guarantees all types of joints, not only copper cable unions but also to weld tapes, brass metallic pieces, stainless steel, steel ground rods covered with copper, etc.   Features:  Superior electrical conductivity to the conductors themselves. Does not corrode, oxidize or degrade with time and is resistant to galvanic coupling. Able to withstand repeated electrical discharges. Never increases its resistance. Has greater mechanical and squeezing resistance than the conductors themselves.   Apliweld® offers a permanent welding and a low resistance connection, particularly important in achieving reliable earthing system. Products range:  Basic Tools Clamps Multiple Molds Specific Molds Welding Compound

It is an electronic circuit based early streamer emitting air terminal with an advance time deltaT, determining a protection radius for each protection level. It is equipped with insulation system protector, stepped electrostatic charge accumulator, upward streamer electronic generator and multiple spark-gap. It does not require an external power supply and is completely maintenance free.   Features: Electronic circuit of high voltage impulse emitter and upward streamer generator is located in a watertight stainless steel body of the air terminal and is shielded from the electromagnetic fields riple insulating system for extreme weather conditions Stepped electrostatic charge accumulator Single discharge tip for effective charge spread Wholly manufactured with stainless steel AISI-316 External Diameter (Body): 60mm. Length 470mm. Weight 2.43Kg

Measuring the static electric field generated by thunderclouds the EFM-100 not only detects nearby lightning but can detect the atmospheric conditions which precede lightning. Electric field data is displayed and graphed on your desktop computer using the included software. For complete electrical isolation from the field mill outside, the EFM-100 connects to your computer using a fiber optic cable. It features aluminum and stainless steel construction for corrosion resistance, gold plated connectors throughout, and the highest quality ball-bearing brush-less dc motor for excellent reliability.   FEATURES:     Log date, time and distance of nearby lightning.   Monitor lightning up to 24 miles (38 km) away.   Detect the high electric field conditions which precede lightning.   Short-range detector is optimized for close lightning to provide the best distance accuracy while ignoring far away lightning.   Monitor up to four separate locations per PC.   Watch trends develop.   Attention getting alarms.   Review archived data from previous storms.   Stay current with free software updates

Application : Lightning Detection & probability of strike

Name : EFM-100

Product : EFM-100

Protec ACES products are developed to provide the industry an advanced earthing system that will reduce the spa ce required for installation of earthing systems, will always provide stable low resistance in all soil conditions, will tolerate high short circuit currents and shall operate without maintenance even in extreme environments.   Features: Single ACES electrode capable of substituting multiple traditional electrodes Fully welded construction with large surface area for quick current dissipation No risk of smoking electrode Very high current handling capability Assured stable low resistance in all seasons and all soil environments Welded terminal plate Eco-freindly electrolytic content ROHS approved soil enhancement material Copper or Galvanized Steel construction Lockable high endurance poly plastic test well Tape in Pipe & Pipe in Pipe Technology

Cell On Wheels (COW) for indoor BTS applications including a trailer typically equipped with a shelter, Self Supporting Telescoping Tower, maintenance Platform, AC utility connection, transfer switch, AC load center and a diesel generator for backup power. Our shelters are typically equipped with a single, steel door (on rear), insulation, vinyl interior walls, AC load center, air conditioners (e/w heaters), fluorescent lighting, electrical outlets, internal master ground bar, thermal alarms, door alarm, waveguide cable entry ports and RF ground bar. All electrical equipment and wiring are installed as per the National Electrical Code.   We can custom design and build these COWs in any size requirements for any application. In addition, we can integrate the customer owned equipment into this product, creating a turnkey solution.   Flexibility   Different sizes can be made in panel widths not exceeding 1.125Mtrs. Modular expansion of the shelter is feasible (in length only) without disturbing the operational status of the site Shelter is suitable for climatic conditions of -15°C (min.), 55°C (max.), 99% RH, very high rainfall, highly humid, saline and corrosive atmosphere. The shelter can withstand a wind velocity of 180Km/hr