Hi,

Thought I would ask here for direction as there is so much knowledge on this list.

I potentially have a project on the drawing board that will be installed in houses in 
the US. It will be mains powered (110VAC) and will, among other things, switch on a 
fan with a relay (yes, there will be a PIC in there too!). I have some experience with 
design of mains operated equipment, but need to know what's different for the US. I 
am wondering about general requirements such as isolation and earthing, fusing, 
wire colours, labelling, if the relay should be one pole or two, testing for compliance, 
etc. My searches so far have led me to the National Electrical Code (NEC) and the 
NEC handbook:-

http://www.nfpa.org/catalog/product.asp?category%5Fname=Top+Selling+Products
&pid=70SBS05&target%5Fpid=70SBS05&src%5Fpid=70HB05&link%5Ftype=up%5
Fsell&src=catalog

A little on the expensive side, but I imagine one or both of these books should 
contain every thing I need to know? Comments appreciated.

Thanks, Brent.
-- 
Brent Brown, Electronic Design Solutions
16 English Street, St Andrews,
Hamilton 3200, New Zealand
Ph: +64 7 849 0069
Fax: +64 7 849 0071
Cell: 027 433 4069
eMail:  brent.brown@clear.net.nz


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