Originally Posted By: bking
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I just had info relayed to me that “double tapped neutrals was ok prior to 1993”.
Can anyone provide info or older code ref. that states otherwise on this?
added with edit:
Double tapped neutrals were never allowed due to the code stating that panels must be installed as per the maufacture instructions. Some panel labels will show this some will not.
The problem is that code officials have never enforced this enough for the electricians to learn it. They assume that it is ok because the older code books did not explain it in detail. And to make things worse, some panels show that multiple wires under a screw are ok and have a little note that says "applies to EQPT GND only" This little note is missed by many.
Another similar thing is flex gas lines, code says they are ok to use.
Then another part of the code says not allowed in walls or inside cabinets.
The tradesmen miss the 2nd part and many code officials allow it.