
		COVER STORY
	
		Interference in the cowshed
	
		
                The regulatory environment surrounding the supply, installation and operation of variable speed drives will be updated soon following the release of a draft code of practice designed to increase controls over the supply, installation and operation of variable speed drives (VSDs).
            
	
		Please refer to the printed magazine for the complete article
	
 
	
		The risks of complexity
	
		
               Behind the human tragedy, the devastation caused by Christchurch’s February earthquake serves as a reminder of the complexity of the systems that deliver power and water and whisk away our bodily waste.
            
	
		Please refer to the printed magazine for the complete article