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SOLO - WIND TURBINES

 
 

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WIND TURBINES

 

Establishing a healthy and safe working environment for lone workers can be different from organizing the health and safety of other crew members - they should not be put at more risk than other crew working onboard.

It will often be safe to work alone. However, managers should think about and deal with any health and safety risks before people are allowed to do so.

One option is to provide these crew members with lone worker protection and emergency calling equipment; thereby improving the chances of a successful outcome should the worst happen.  

Protection can be provided for

  • Upper and lower tower areas

  • Nacelle and machinery areas

 Remember – it’s better to have it and not need it, then to need it and not have it!


 
  SOLO has been designed to supplement existing safety measures i.e. regular radio calls, to give added protection for maintenance and service engineers attending turbine towers on regular intervals.
 
Offshore wind farm towers are, by their very nature isolated places to work, therefore should anything untoward happen to the attending engineers it’s crucial, for a successful outcome, that help is summoned immediately.

 

 

Description

On entering the tower, a PIR motion sensor will detect the engineer’s presence and activate an ‘entry’ alarm on the MCU, located near the entrance hatch. This will draw the engineer’s attention to the MCU and the fact they must activate the lone worker system prior to proceeding.

The engineer should then operate the key switch, which turns the ‘entry’ alarm off and starts the interval timer, for a period of 15 minutes. The engineer should then radio the support vessel to expect a test ‘Emergency Call Transmission’ which should register the tower’s number on the Alarm Indicator Panel situated on the support vessel’s bridge. Following confirmation, the engineer can then remove the key (for safety’s sake), collect the portable reset/call transmitter and proceed to their work place.  

With the interval timer running, the engineer must use the portable wireless transmitter to reset the timer before the end of the 15-minute interval. The wireless reset can be used at any point.  

At the end of the 15-minute interval an intermittent pre-alarm is sounded through the local sounders, this warns the engineer they haven’t reset the timer.
If, after a further 2 minutes, no reset is received the 2nd stage alarm is triggered.
The local alarms are now sounded continuously for 2 minutes to alert any other co-workers in the tower to a possible situation arising.
If still no reset received, the 3rd stage is then triggered – the local alarms continue to sound and an ‘Emergency Call’ coded radio transmission is sent to the receiver aboard the support vessel, raising the alarm & giving the towers identity number.

The ‘Emergency Call’ transmission is repeated every 2 minutes till cancelled, which can only take place from the tower itself.

Manual ‘Call for Assistance’ is also available by pressing the reset button for more than 3 seconds - this will then bypass the timer and enters the staged alarms sequence immediately.

Wireless portable transmitter has button-2 programmed to sound the local alarms whilst pressed, to signal to co-workers, when needed.

 
 
  • Supplements existing safety measures

  • Personnel entry detection

  • 15-mins interval period

  • Wireless portable reset/emergency call transmitter

  • Emergency "Call for Assistance" to immediately signal help is required.

  • Emergency call radio transmission to support vessel

  • Pre-alarm reminder to reset timer before main alarm is activated

  • High output alarm sounders for local signaling

  • Key operated timer on/off switch for safety

  • IP65 marine rated

  • Support vessel Emergency Call Alarm Indicator Panel

  • Coded radio modems with 1.5km range

  • License free operating frequencies

 
   
     



       
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