Tips & News - December 2012

UNIDIRECTIONAL CORONA RING

INTRODUCING

Hubbell Power Systems presents the new unidirectional corona ring for the Quadri-Sil ® Insulator product line. This corona ring design allows for easier and faster installation in the field.

LINE POST AND SUSPENSION INSTRUCTIONS For insulators with one ring, the ring must be installed on the Live/Line End of the insulator. For insulators with two rings, the ring of greater diameter must be installed on the Live/Line End, and the smaller one must be installed on the Ground/Tower End. The corona ring is a device for protecting the polymer housing from the effects of corona. Not following these instructions correctly may decrease the life expectancy of the insulator. 1. Loosen the hex bolt, but not completely, in order to install the corona ring. 2. Slide the ring assembly over (onto) the lip or CSR (Corona Shielding Ring) ensuring the Bottom Clamp is resting between the first shed and the CSR, with the head of the hex bolt facing away from the polymer sheds. 3. Torque the hex bolt to 10 ft-lbs (not to exceed 15 ft-lbs) to secure corona ring to the end fitting. If a torque wrench is not available, tighten the bolt until the lock washer is flat.

The corona rings are available for Suspension (8”, 12” and 15”diameter) and Line Posts (12” diameter). Other sizes to be introduced in 2013 for other Quadri*Sil Insulators. The unidirectional rings are made of high grade aluminum alloy, making them strong, light and corrosion resistant. If you have any questions concerning this new addition, please contact your local sales representative.

TheUniversal Corona Ringwill become standardon all Quadri*Sil Insulators beginning in early 2013!

Never Compromise www. hubbe l l powe r s y s t ems . c om TM

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