A recent off-air event resulted in the discovery of overheated line side conductors at a 60 amp transmitter disconnect, presumably due to insufficient torque.
Under investigation, I found that the#4 feed to the disconnect comes from a power distribution block, where it is double-tapped with a 3/0 1 per phase.
The other side of the distribution block is a 250 run as parallel conductors from an ATS.
One set of 250s feeds the the aforementioned disconnect, the other feeds a 200 amp disconnect with 3/0 fed through another set of blocks.
Would it be compliant to come off the first set of blocks with a set of 250s and tap to the panel and 60 amp disconnect with a Polaris tap for example?
Other possible solutions would be to replace the blocks with blocks that accommodate more wires, but it looks blocks to accommodate these sizes on the load side are limited.
The other option, which I don’t really think is a great one would be to replace the disconnect with a breaker, but that is probably the simplest and lowest cost.
Under investigation, I found that the#4 feed to the disconnect comes from a power distribution block, where it is double-tapped with a 3/0 1 per phase.
The other side of the distribution block is a 250 run as parallel conductors from an ATS.
One set of 250s feeds the the aforementioned disconnect, the other feeds a 200 amp disconnect with 3/0 fed through another set of blocks.
Would it be compliant to come off the first set of blocks with a set of 250s and tap to the panel and 60 amp disconnect with a Polaris tap for example?
Other possible solutions would be to replace the blocks with blocks that accommodate more wires, but it looks blocks to accommodate these sizes on the load side are limited.
The other option, which I don’t really think is a great one would be to replace the disconnect with a breaker, but that is probably the simplest and lowest cost.
