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I am looking for some input on these pictures.

This is the 12KV secondary of one of two step up transformers on a rush project. I did the terminations last week prior to the transformers being delivered so that when they arrived the men on the job could just bolt them up. (I am on a job 100 miles away) They sent me these pictures today because the surge arrestors you see in the photos were not expected to be there. The concern is two fold.

1. The #6 connecting the arrestor to the HV bushing was factory installed. As you may be able to see it is a 600V THHN insulated conductor. What I have seen in the past is unshielded 15KV cable making this connection inside equipment.

2. The arrestors are mounted directly under the HV bushings and had to be loosened and pushed aside to get the power conductors landed. This moves the top terminal closer to the tank.

My suggestion, since they are owner supplied transformers, was to notify the owner/engineers of or concerns and we are awaiting there direction.

Does everyone else here see this problem??

- Nick
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