Furnace grounded to water line

[Michael Thomas]

I resisted the temptation to pull the cover - it's the kind of curiosity that leaves the cat staring at a handful of disconnected unidentified conductors - but I am wondering:

Why - in modern construction with conduit providing the ground path, and in what otherwise appeared to be a reasonably competent furnace installation - might someone go to all this trouble to add an additional ground (I presume) of this sort?

[A.D. Miller]

I resisted the temptation to pull the cover - it's the kind of curiosity that leaves the cat staring at a handful of disconnected unidentified conductors - but I am wondering:

Why - in modern construction with conduit providing the ground path, and in what otherwise appeared to be a reasonably competent furnace installation - might someone go to all this trouble to add an additional ground (I presume) of this sort?

MT: Looks like a wrong-minded belt-and-suspenders approach to grounding/bonding. But, it probably will not hurt anything.

[Michael Thomas]

One thing that bothers me is the white wire - suppose that the jumper is actually to a grounded (neutral) conductor in the box, for example as some sort of Bozoide attempt to control galvanic corrosion...

[A.D. Miller]

One thing that bothers me is the white wire - suppose that the jumper is actually to a grounded (neutral) conductor in the box, for example as some sort of Bozoide attempt to control galvanic corrosion...

MT: Could be, or maybe you've been watching too many sci-fi flicks.:D

[Jerry Peck]

I'm guessing that they somehow discovered that the copper pipe, water pipe?, was not "bonded" so that was their feeble attempt to "bond" the interior metal water piping system to ground.

[John Arnold]

...maybe you've been watching too many sci-fi flicks.:D

The Attack of the Bozoids?

[Michael Thomas]

.... maybe you've been watching too many sci-fi flicks. :D

Say you will... that white wire still bothers me....