Below is a pole top rescue video taken during training with IDECO in Jordan. This method uses the hand line to lower the victim to the ground.
Rescue Training with IDECO Jordan
Posted by MITSA Live Line Maintenance on Monday, June 18, 2012
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 water temperature increases. Hence, it is important that the resistivity/conductivity of water be measured constantly. Normally, washer packages include “Constant resistivity monitors”, which notify the operator if water conductivity rises above a pre-set level. These monitors can be installed to automatically turn off the washer is this limit is reached. Portable meters are also available and can test the resistivity or conductivity of the water before filling up the tank.
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 and horizontally, giving it a very good range of motion. The main use for this type of washer is on EHV (extra high voltage) transmission lines. Generally these washers have controls at the base of the boom. With washers on an aerial platform, control stations are provided at the base of the boom along with one on the platform to allow the user to wash manually.