Trumpy,
The numbers are all over the place.Thermal resistance is 250F and dialectic strength is 400 ohm cm.It is self extinguishing but thats from one of many data sheets the numbers are relative to the particular manufacture.
My concerns are.
-Added electrical component heating
-How it will react in an arc flash/blast situation
-how do you mount/form it in the tub and whats required clearance from the energized parts.
- will it attract dust,filings,and fluff over time
-is it going to rattle apart around equipment such as high cycling starters.
-will this affect the equipment CSA listing as its an improvised alteration and not manufacture approved.
-Liability in the even of an accident investigation.
The main concern is that after talking to many electricians no one has thought of or attempted fitting unapproved guarding in such a way.
Any guarding that is an original equipment part has been engineered and tested to a set standard.Once CSA has approved and listed it further modification is asking for trouble.
I also don't understand the point.It will create an obstruction when making a visual inspection,trap any garbage that falls between it and the fusing OR buss,obstruct air flow and heat dissipation.It will have to be removed in order to troubleshoot and re torque screws which i normally do on all equipment that i work on.
To me this seems like a bad idea.Am i missing something?
Thanks
Last edited by frank; 01/16/17 08:38 PM.
