Problem:
Several knowledgeable pros in this area have mentioned that exposed meter mains close to the coast can be corroded out in 5-7 years and covered mains often only last 10-15 years. Breaker and ground problems are common long before panels need to be replaced.
Condition:
I am building our new home on the north coast of California and am new to the area. Underground utilities feed a covered concrete block pedestal about 10′ from the future structure. The pedestal has a 400a Square-D QO panel and the meter will be visible from the road through a hole in split doors. Plastic telephone demarc and cable TV junction boxes will be installed next to the meter.
Solutions:
The only thing suggested to me so far to extend the life of the main is to smear corrosion inhibitor made for power panels over the buss bars and connections. I have found it is a common practice by good electricians and the utility company in this area. What does everyone think of these added measures?
1. Zink anodes bolted to the enclosure
2. Insulating the enclosure with rigid EPS foam and installing a damp-chaser — a 25-35w resistance heating element used in pianos and storage closets.
3. Painting the south side of the 5’x6′ block pedestal black to maximize solar gain, thus keeping the meter warm longer and evaporating condensation faster on those days that get sun. The meter faces North by Northwest.
4. Have the enclosure, maybe with rigid insulation, sprayed with pick-up bed liner. There is a mobile service in the area.
Any other thoughts?