2011年8月6日 · Thermoplastic-insulated cable TW, TWU = 60 deg C TW75, TWN75,TWU75 = 75 deg C the U means it can be direct burial getting to the OP,there is no advantage to installing TW. The temperature rating doesn't allow termination to light fixtures, so that is why R90 etc is used.

2018年6月4日 · (i) Types RWU75, RWU90, TWU, and TWU75 single conductors or twisted assemblies of these types, suitable for handling at –40 °C; or (ii) Type SOW, G, G-GC, W, or the equivalent portable power cable;

2016年10月6日 · Is PVC underground considered a wet location and where can I find the definition of a wet location in the code book? I am asking because I have always thought RWU had to be installed underground but some guy at work says TWN can be installed underground because the W stands for wet location and...

2018年7月2日 · Thanks Dennis , 4/0 almuminum is good yes but only for calculated loads of up to 189 amps For example if this was to be overhead service it would be hydro who installs and owns the service conductors and I wouldn’t imagine them using any load calculations and just use a conductor sufficient for all installations.

2013年2月11日 · All, I am trying to understand the differences in gang boxes used in: -China -UK -USA -India I am also interested in purchasing a "sample pack" worth of gang boxes. I would like a variety from each country. If anyone can point me towards an article discussing the details of what is used in...