Electrical and Lighting Systems


HydroTech is a prestigious contractor specializing in designing and executing lighting – electrodynamics systems for office buildings, factories…

1. Electric Power Supply and Distribution Systems:

  • Medium-voltage distribution system, up to about 35 kV
  • Low-voltage distribution system
  • Systems of generator, panel, transformer…
  • Lighting system
  • Lighting production system.

2. Light – current systems:

  • CCTV system
  • Communication system, telephone system, Public Address (PA) system
  • Cable television system
  • Computer network system

3. Automation System

  • Automatic Control System
  • Building Management System (BMS) and Programmable Logic Controller (PLC) control systems
  • Safety and warning system

4. Installation techniques

4.1./ Wall – under tube wiring

  • Determine the location, length, height, width of the cut in the wall. Then use the hand – held cutter to cut the wall along the predetermined position
  • Install the tube wiring.
  • Check and officially accept the work. Then the wall coloring is conducted.

4.2./ Concrete floor – under tube wiring

  • Use paint to mark the location of intermediate boxes on the formwork when the constructors finish installing formwork for the floor.
  • Place the boxes in the predetermined position, connect them by tube wiring to create a path of power source for all devices. This step is conduct when the first steel layer has been installed on the floor.
  • Check and officially accept the tube and box system, then conduct the floor concreting
  • Must have a person on watch when concrete floor to handle in time in case problems occur with the tube, such as: flattened, broken, lost connection…

4.3./.  Installation of cable tray systems

  • Determine the height and location of cable tray hangers
  • Process the hangers, place them in predetermined position. The distance between two hangers is from 1.3 meters to 1.5 meters.
  • At the position where the cable tray is down to the cabinet/box, do not cut the cable tray by hand then combine them at the crossroads of the cable tray system. Use the accessories manufactured at the factory to avoid scratching cables in the cable trays
  • Install the trays and adjust

4.4./  Information and stringing pipe.

  • Construction phase remains off the floor, using plastic wire inserted tubes.
  • After hearing shall be conducted bowl and pull the power cord to the device driver.
  • Zippers are made each route signs, the color and blending.


4.5./  Check wiring and mounting equipment..

  • Test to see if the circuit wire, have been slow to pull the wire, the insulation between the conductors, the leakage currents.
  • Wire the safety checks are carried out installation of equipment.
  • After installation is complete, the device commissioning test, using clamps amper identify each phase line then line calibration phase to ensure that the phase equilibrium in the system.
  • Electrical cabinets are labeled, functional diagram of each equipment cabinet. 

4.6./   Control Panel

  • Draw diagrams and installation location of the MCB in the cabinet and cabinet size.
  • Electrical Cabinet Fabrication drawings approved by the investors.
  • Installation of equipment in cabinets complete.
  • Check the insulation, the enclosure leakage, safety and electrical switchgear.
  • Installation of the cabinet into position and connect the cable to the top - the cabinet.
  • Check phase sequence and electrical safety.

4.7./   Test, test the entire system.

  • Use meter insulation resistance, circuit check all the wires, ensure the safety of the system and the fine arts.
  • Operating system:Close power tiered system and in no-load mode.
  • For systems operating in download mode (power play to load and tiered).
  • Digital error correction (if any).
  • Cleaning the entire system.
  • Acceptance of the system console.