Brett Aggregates’ electrical department uses Durite Canterbury Spar Sand – a bi-product manufactured by its sister company Brett Specialized Aggregates – to indicate buried cables.
Due to its distinctive colour, the sand makes itself easily identifiable and helps prevent cable strikes by machine operators and hand digging. Once located, the sand makes it simple to follow the line of the cable, and provides good protection for cables with coverings of 22 cm to 30 cm deep. |