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pipeline recoating services

PHMSA Rule Making Updates – a look at what is ahead on the US Regulatory Front

The US pipeline regulatory environment was moving toward new PHMSA rules expanding integrity management and safety requirements. This article reviews key pending changes, including the Liquids Final Rule that extended integrity management and leak detection obligations beyond high consequence areas.
soil resistivity testing

Anode Current Ratings and Soil Resistivity

Anode current ratings are based on expected service life in amp-hours, not soil resistivity, which only affects circuit resistance. This article explains anode life calculations for magnesium and mixed metal oxide anodes and clarifies the distinction between current rating and operating resistance.

Private: Chief Big Dig engineer is fired over light fixture controversy

Boston’s Big Dig chief engineer Helmut Ernst was terminated following a state review prompted by the collapse of a corroded 110-pound light fixture in the O’Neill Tunnel and the state’s failure to notify the public for more than a month after the incident.
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FLASH RECTIFIER SALE

Need a Rectifier Now? We Have It.

Get a tested MATCOR rectifier without the manufacturing wait. Our in-stock units are ready to ship. Limited quantities available.

See Available Rectifiers
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