The Difficulty
When a water cooled power cable is utilised in critical environments these kinds of as powering an EAF (Electric Arc Furnace) in a metal mill there is an monumental likely for warmth, flames, ash or molten splash to severely damage the electrical cables (or sequence of cables) consequently crippling the melting operation. This interprets into unscheduled upkeep and missing manufacturing time. In some scenarios these expenditures have been believed as higher as $100,000 / hr dependent on the size of the operation and production schedules.
The h2o-cooled furnace electric power cables present a versatile source of ability to permit motion of the electrode arms up and down and to let swinging the electrode arms and roof back again and forth when charging the furnace. The electrical power cables consist of copper wire strands forming a spherical spiral construction which are connected to copper terminals at either close of the cable. A lower temperature rubber jacket about the outside the house of the cable allows cooling h2o to move by way of the cable assembly. The rubber hose is hooked up at both close of the cable working with stainless steel clamps, vulcanized bumpers or an anti-chaffing style hose.
The risk is that molten steel splash prompted by “wet costs”, or flame impingement, serious warmth, and many others. will hurt an unprotected ability cable. This can cause a chain response of catastrophic gatherings which includes decline in h2o cooling ensuing in overheating or shorting of the electrical ability cables and halting the melting method.
Presented the large diameter of the rubber hoses encompassing the ability cables and proximity to the EAF, there is a major landing space for sparks, molten metal splash, and so on. In lots of applications the cables are remaining completely unprotected and uncovered to serious substantial temperature environments. In some scenarios the rubber cooling h2o hose is wrapped with economical fiberglass tape or sleeve that provide minimal protection from doable hazards.
The Option
With a minimum money expenditure, Worbo Inc.’s intense obligation protective molten splash absent sleeve could be set up to wrap close to new or present water cooled electrical power cables to resist heat, flame, ash and huge intermittent exposure to molten metal splash. Worbo Inc’s growth of a very flexible, molten splash resistant, easily set up and totally non-conductive sleeving solution is a excellent healthy for this application.
The Technologies
Manufactured and made with 100% Non-Conductive components especially for safe non-arcing use in near proximity to AC or DC EAF’s.
The hydrophobic, low area vitality, non-adhere “Splash Away” qualities of the thick silicone coating sheds significant random but potentially harmful amounts of 3000˚F molten steel splash to support retain the integrity of the drinking water cooled electricity cable until finally the subsequent scheduled upkeep time period.
Geared up with a hook and loop self gripping closure, EAF Cable Molten Splash absent sleeve is simply discipline installed (or taken out for upkeep) without the need of cable disconnection.
Substantial Shear and Peel Hook and loop self gripping closure is designed specifically for this application to make certain closure won’t individual for the duration of significant “jumping”, “bouncing” and “bumping” of cables during furnace arc and “cold commences”.
Mix of Heavy obligation “Splash Away” silicone protect coating on thick substantial temperature fiberglass substrate assists insulate and defend towards intermittent bouts of molten metallic splash, flame impingement, burning airborne particles and superior temperatures.
The Economic Gains
Dependent on the software the charge to procure and install a higher temperature jacketing technique could be as small as $30/ft. Relative to the monumental fees involved with unscheduled maintenance and missing manufacturing time this depict an insignificant funds investment decision that could pay back for by itself many moments over by means of the prevention of a single unscheduled servicing function.
The Summary
Shielding electric arc furnace electric power cables exposed to sever substantial temperature environments with a substantial temperature jacketing procedure will considerably lower unscheduled routine maintenance and missing creation time.
