big john
Senior Member
- Location
- Portland, ME
We have a ton of 20+ year old switchgear by a variety of manufacturers: Westinghouse, ITE, Fuji, etc. On all the indicator lights there are series resistors. So even though everything is fed with 125V the lamps we have to use are a variety of voltages: 6V, 18V, 22V, etc. Some of these lamps are extremely difficult to find.
Why does everything have series resistors?
Is this a safety practice to help limit fault current...? Is there a hazard to simply replacing all these lampholders with a type that accepts 125V lamps? Thanks.
-John
Why does everything have series resistors?
Is this a safety practice to help limit fault current...? Is there a hazard to simply replacing all these lampholders with a type that accepts 125V lamps? Thanks.
-John