Successful exam in a dangerous atmosphere
AQUA Dakk CCTV
The Bridge
A Confined Spaces exam was previously attempted but the gas detector identified high levels of methane so the examination was aborted and we were asked to carry out the exam using a floating CCTV system. Therefore removing the need for man entry to the structure.
The Equipment
Aqua Dakk is a fully steerable dual propeller robotic unit, it features 2 cameras, one pan and tilt that gives views above the unit and one tilt camera that views below.
This system incorporates the standard camera and control box used in all the Dakk crawlers but has the edition of directional control and data feedback via a laptop.
The Wi Fi was enabled to allow the footage to be viewed on 2 separate screens.
The Team
To carry out the examination a team of one STE4 examiner and one operator was used. The operator drove the robot through the culvert whilst the STE4 carried out the examination.
The Examination.
The exam revealed a number of defects including dropped bricks and missing timber laggings. (see photos). This resulted in an engineer’s recommendation for repair works to be carried out.
