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Tag Archives: Hot line tools
Live Line Training in Jordan
Between 2006 and 2012 Mitsa International has conducted several training programs in the county of Jordan. During this period, we have trained linemen and engineers in safe working practices for Live Line Maintenance at LV (220/380V), MV (11/33 kV) and EHV (400 kV). Our satisfied customers … Continue reading
Hot Line Training – 500 kV Live Line Bonding
Below is a Laboratory Demonstration of Hot Line bonding on to 500 kV. http://www.mitsacy.com
Hot Line Training – Tower Self-Rescue
Below is a Self Rescue video taken during 400 kV training with NEPCO in Jordan. http://www.mitsacy.com
Safe Hot Line Washing Requirements Part 1 – Conductivity and/or Resistivity
For an efficient and safe washing of insulators, the water must have a minimum of 2540 ohm-cm or 100 ohm-in resistivity or a maximum of 400 micro-siemens conductivity. An additional note to this is that resistivity of water decreases as … Continue reading
Water Temperature vs. Water Resistivity
The ultimate goal of insulator washing is to prevent flashovers. When water pressure is too low while washing, there is a far greater chance of a flashover occuring. The warmer water, the lower the resistivity, the lower the resistivity the lower the … Continue reading
Hot Line Washing Saftey Test – Part 3
A third test was conducted on contaminated insulators. Firstly, they were flashed over, then washed, then flashed over again. During the process the voltage was noted when the second flashover occurred, thus establishing the effectiveness of the “washing”. An important note to add is that most of … Continue reading
Hot Line Washing Saftey Test – Part 2
The tests that had been run took place in a district were some insulators were being washed, whereas others were not. After light rain and fog, 57 pole tops had caught on fire along with 12 circuit interruptions in the … Continue reading
Aerial Application for Skid Mounted Washer System
A washer system mounted on a skid, may be placed on a chassis with an aerial platform or with a remote controlled hydraulically operated nozzle and mounted on a telescoping boom. This nozzle has the ability to move both vertically … Continue reading
What composes a Mitsa washer system?
All Mitsa washer systems are composed of the following basic items: a water tank, a water pump, a water hose and reel, a wash gun, a fuel tank and a power source. Several of these components do vary, for example … Continue reading
The Effectiveness of Washing Systems
In the current market, there are some very simple and economical products, however these do not provide the required degree of effectiveness. This inadequacy stems from their limitation in the reach of their water stream and impact pressure on the … Continue reading