UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

PJL · 26th Sep 2018, 11:42 am

The discussions here seem to have ignored both fault and power off conditions.

Many AC/DC sets use a single pole switch to chassis that leaves the chassis live when switched off.

Even if you have a double pole switch, a fault in the switch (very common) can leave the chassis live.

Then there is the risk from a connection breaking in the mains cable giving a 50% chance of a live chassis.

26th Sep 2018, 11:42 am	#35
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Transformer safety? The discussions here seem to have ignored both fault and power off conditions. Many AC/DC sets use a single pole switch to chassis that leaves the chassis live when switched off. Even if you have a double pole switch, a fault in the switch (very common) can leave the chassis live. Then there is the risk from a connection breaking in the mains cable giving a 50% chance of a live chassis.