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BRIGHT SPARKS !
GOT A SPARE HALF HOUR ? PUT YOUR LUNCH BREAK TO GOOD USE WITH SOME PUZZLING BRAIN TRAINING .
NOT DONE A SUDOKU BEFORE ?
A sudoku is a grid of
1 nine by nine squares or cells , which has been subdivided into nine subgrids or regions of three by three cells .
The objective of sudoku
2 is to enter a digit from 1 through 9 in each cell , in such a way that each horizontal row contains each digit exactly once ; each vertical column contains each digit exactly once ; and each subgrid or region contains each digit exactly once .
In the puzzle here ,
3 several digits have already been entered ( the ‘ givens ’); these may not be changed . Your job is to fill the remainder of the grid with digits according to the listed rules .
Warning : In spite of the
4 game ’ s apparent simplicity , sudoku can be highly addictive . For the solution , see gemcell . com . au / competitions .
THE CABLE GUY TECH GUIDE
The effect of sunlight on PVC
Sunlight and in particular the UV light spectrum frequency can cause the chemcial bonds of PVC to break . In addition , the heating caused by direct light can impact current carrying capacity and cause plasticisers in PVC to migrate out of the compound causing increased britleness and likelihood of cracks forming . Both of these effects may expose the conductor and result in cable failure .
So what can we do do minimise the impacts ?
• Avoid direct sunlight exposure
• Use black coloured sheath materials which counteract the effects of UV .
Not all doom and gloom ...
In many cases , decolouration is expected and degradation is limited only to the surface of the conductor . Some PVC compounds can continue to have long life expectancies in light of such surface degradation provided the insulated cores are not exposed .
Did you know ? Nexans Olex products manufactured at Lilydale , Victoria have been independently reviewed for their Polyvinyl Chloride ( PVC ) systems , PVC resin production , manufacturing processes & end of life management . The review confirmed that all Nexans Olex PVC products are compliant with Best Practice Principles .
NEXANS OLEX KEEPING AUSTRALIA CONNECTED
CONTACT NEXANS OLEX TO FIND OUT MORE www . olex . com . au
OCT – NOV 2021 GEMCELL . COM . AU 47