Specifications

A Remote Automated Water Quality Stream Gauging System Design 10
10
Figure 5 B&R enclosure located to the rear of the pier to store excess cable.
After the cables have passed into the box, they are run through 50 mm NB galvanised water
pipe to the platform (Figure 6). Steel pipe is preferred as it provides excellent protection
against the effect of large flows and floodwaters; it is impervious to trampling and gnawing by
animals and provides good protection against fire.
The pipe is shaped using a hydraulic pipe bender to conform to the surface of the ground.
Lengths of pipe are joined together using barrel unions thus removing the need to rotate the
pipes during joining. The pipes are attached to 50mm SHS piers with U-bolts to provide extra
support.
Installing the pipe on the surface greatly reduces the effort required for maintenance or to
install new components by providing easy to access each length of pipe. It also reduces the
ingress of soil and moisture into the cable housing which prolongs the life of the cables.
The pipe terminates at the bottom of the auto sampler enclosure.