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Personal Protective Equipment (PPE) For Electric Furnace Operation. Glenn S. Aspholm Johns-Manville Corp Littleton, Colorado October 24, 2005. JM Melting Operations. Gas-Oxy Gas-Oxy w/ Electric Boost SORG Technology Modified Pochet-Style All-Electric Melters All-Electric Forehearths.

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personal protective equipment ppe for electric furnace operation

Personal Protective Equipment (PPE) For Electric Furnace Operation

Glenn S. Aspholm

Johns-Manville Corp

Littleton, Colorado

October 24, 2005

Glenn Aspholm

jm melting operations
JM Melting Operations
  • Gas-Oxy
  • Gas-Oxy w/ Electric Boost
  • SORG Technology
  • Modified Pochet-Style All-Electric Melters
  • All-Electric Forehearths

Glenn Aspholm

additional risks for pochet melters
Additional Risks For Pochet Melters
  • Open Glass Streams
  • Operator Close to Melter – Open Glass Surface
  • Required to Probe Glass
    • Melter Level Measurement
  • Ladle-Check Glass Flow Measurements
  • Equipment Change and Maintenance

Glenn Aspholm

additional risks for electric forehearths
Additional Risks For Electric Forehearths
  • Infrequent Glass Level Measurement
    • Level-Gauge Calibration
    • Level-Gauge Failure
    • Upset Condition / Verification
  • Thermocouple Change
  • Low – Maintenance, Trouble-Free Operation
    • Forget the Risks !!!

Glenn Aspholm

in scope
In-Scope
  • General Operator Duties
  • Glass Level Measurement (Melter)
  • Glass Level Measurement (Forehearth)
  • Glass Pull Rate Measurement (Ladle Checks)
  • Thermocouple Change - Forehearth

Glenn Aspholm

out of scope
Out-Of-Scope
  • Electrical / Mechanical Maintenance
  • High-Voltage / Low-Voltage Electrical Work
  • Emergency Conditions
  • If in doubt, Lock it Out !!!!
  • Not a replacement for proper Lock-out/Tag-out Procedures

Glenn Aspholm

open glass stream
Open Glass Stream

Glenn Aspholm

electric forehearth
Electric Forehearth

Glenn Aspholm

risks around electric melters forehearths
Risks Around Electric Melters/Forehearths
  • Thermal (Burn)
  • Abrasion (Cut / Scrape)
  • Contact with Molten Glass
  • Low Voltage Electrical
  • High Voltage Electrical

Glenn Aspholm

melter and forehearth electrical potential
Melter and Forehearth Electrical Potential
  • Melter - < 100 V AC
  • Forehearth - 50 – 100 V AC

Glenn Aspholm

burn abrasion ppe
Burn / Abrasion PPE
  • Bump Caps / Hard Hats
  • Proper Clothing
  • Leather Gloves
  • High – Temperature Clothing and Gloves
  • Head Protection and Faceshield

Glenn Aspholm

low voltage electrical shock risks
Low Voltage Electrical Shock Risks
  • Electrical Shock – Injury / Death
  • Secondary Injury – Reaction from Electric Shock
    • Fall
    • Burn
    • Head Injury
    • Laceration/Abrasion/Fracture

Glenn Aspholm

new requirement use of linesman s gloves and protectors for normal operator functions
New Requirement - Use of Linesman’s Gloves and Protectors for Normal Operator Functions

Glenn Aspholm

lineman s glove info
Lineman’s Glove Info
  • Di-Electric Rubber Construction
  • Seamless
  • ASTM D120 Specification
  • Must be tested and certified every 6 months

Glenn Aspholm

current specified equipment
Current Specified Equipment
  • 00 Linesman’s Gloves
  • Leather Protectors
  • Order proper sizes – Probably oversized
  • Cost - Approx $75/set (Glove + Protectors)
  • 6-Month Certification Required
    • Pay Certification cost
    • Replace after 6 months
          • Source of Information - McMaster-Carr Catalog

Glenn Aspholm

questions

Questions ???

Glenn Aspholm