ECN Forum Forums General Topics of the Trade General Discussion Area Why are those light bulbs-a-blowin'

Hummm........

Just a shot in the dark, (pun intented)I would check for something that might cause a surge or faulty grounding of the service or loose neutral connections at the panel.
Be sure lighting is on it's own circuit and if possible, not sharing a neutral with another line. All of these conditions could cause an unwanted voltage on the neutral conductor thus suppling momemtary "high" voltage (150-220V)to the filament of the lamp, which is rated at 120-130 volts. Over time, this causes the lamp's life to be shortened considerably!

Hope this helps.
Dave