Smoking DC8
- Thread starter lunkerbunker
- Start date
lunkerbunker
In Memoriam
Curt,
I just emptied my pm's.
I just emptied my pm's.
73ChargerFan
Active member
Are the DC4, DC4HD & DC8 units UL approved?
Aquaduck
New member
I was under the impression you cannot legally sell something that is meant to be plugged into a hazardous line voltage if it is not UL approved. Components with CSA/UL approval does not gaurantee the end product is approved. Products being shipped to Canada must bear the CSA logo as well.
73ChargerFan
Active member
A friend of mine worked at the UL testing lab in Sunol, and he said the testing procedure was very expensive, and is not a requirement of selling electrical items in the US. The ebo-jager heaters which are so popular aren't even UL listed.
Aquaduck
New member
I know it's expensive. I work for a company that designs switching power supplies. I do the printed circuit board layouts that have to meet many UL and CSA specifications for creepage and clearance distances as well as meet flamability standards. We can't ship a single product if it's not UL/CSA approved.
I've had my DC4 apart to check it out. Everything looks good from a safety point of view. Fuse protected AC mains, wire gauge is appropriate for the currents flowing through them, FR-4 circuit board material, quality relays, plastic box to reduce the risk of shock, etc. I'm a little concerned about the melting plugs though.
I've had my DC4 apart to check it out. Everything looks good from a safety point of view. Fuse protected AC mains, wire gauge is appropriate for the currents flowing through them, FR-4 circuit board material, quality relays, plastic box to reduce the risk of shock, etc. I'm a little concerned about the melting plugs though.
73ChargerFan
Active member
melting plugs sound like the too much current, or maybe a slow blow fuse that didn't go fast enough?
