VALE DATED. Document Owner: Name: Phil Langlois Position: Lead Electrical Engineer

Transcription

1 Department Rubber Insulating Gloves Procedure MPROC Page 1 of 1 Training Code EL304 (3 year review) Document Owner: Name: Phil Langlois Position: Lead Engineer Sud = Sudbury, Ontario, PC = Port Colborne, Thom = Thompson, Manitoba, VB = Voisey s Bay, LH = Long Harbour, Act = Acton, England,, Clyd = Clydach, Wales Participating Sites Rev Description Rev n by Sud PC Thom VB LH Clyd Act Issue Date YYYY/MM/DD SPI-ENG-000 reformatted and revised to MPROC and PowerPoint EL304 Care, Use and Maintenance of Rubber Insulating Gloves PL 015/03/4 HL 015/03//7 N/A N/A N/A N/A N/A N/A 015/03/7 1 SPI-ENG /0/11

2 Department Rubber Insulating Gloves Procedure MPROC Page of 1 Table of Contents TABLE OF CONTENTS PURPOSE APPLICATION EXCEPTIONS REFERENCES COMMITMENTS DEFINITIONS RESPONSIBILITIES LOW VOLTAGE RUBBER INSULATING GLOVES CLASSES 00 & HIGH VOLTAGE RUBBER INSULATING GLOVES CLASS RECOMMENDATIONS APPENDICES... 8 endix A Cost Comparisons... 9 endix B Stock Codes for Gloves endix C Accredited Testing Facility Details endix D: Revision Notes and rovals... 1

3 Department Rubber Insulating Gloves Procedure MPROC Page 3 of PURPOSE This procedure describes the methodology for wearing rubber insulating gloves, and makes practical recommendations on use and storage. It also identifies which classes of gloves are provided by Vale and their re-testing intervals..0 APPLICATION In order to protect personnel from shock, requirements are stipulated to ensure that gloves are being inspected, worn and re-tested in a manner which minimizes the risks to as low as reasonably achievable..1. EXCEPTIONS No exceptions. 3.0 REFERENCES The following documents were used in the development of this document or have instructions and procedures applicable to it. They shall be used in their most recent revision. ASTM D American Society of Testing and Materials, Standard Specification for Rubber Insulating Gloves ASTM F American Society of Testing and Materials, Standard Specification for In-Service Care of Insulating Gloves and Sleeves ASTM F696-06(011) - American Society of Testing and Materials, Standard Specification for Leather Protectors for Rubber Insulating Gloves and Mittens ASTM F136-96(007) - American Society of Testing and Materials, Standard Guide for Visual Inspection of Protective Rubber Products CSA Z59.4-M Rubber Insulating Gloves and Mitts (Canadian version of ASTM D10) BS EN60903:003 Live Working. Gloves of insulating material (British-adopted European Standard) Best Practice Special Instructions on the Re-Testing of Rubber Insulating Gloves Revision 5 dated April and prepared by the MLRC sub-committee CSA-Z46-1 Workplace electrical safety, Section 5.11 and Table

4 Department MPROC Page 4 of COMMITMENTS The (MPROC-5000) is committed to comply with: The Vale Safe Production model; IHSA Infrastructure Health and Safety Association (old EUSA Utility Safety Association rules) for primary shock protection requirements; O. Reg. 854 The Occupational Health and Safety Act Mines and Mining Plants, Part VII and Part I General Section 3 and 1 (for equivalency of PPE requirements); and SPI SAF-Z46 - Arc Flash PPE protection 5.0 DEFINITIONS Air test: A test performed by rolling up the rubber insulating glove s sleeve and trapping air in the rubber in order to detect any pinhole leaks. In service: The rubber insulating gloves have been taken out of their sealed plastic bag. Protection (Shock) Primary Where the rubber insulating gloves are used as the only barrier against shock. At Vale, the Power Department will assume that all work requiring rubber insulating gloves is for primary shock protection to force 3 month re-testing requirements.. Secondary Where the rubber insulating gloves are used as a second means of protection against shock. If insulated tools or insulated test instruments are not used, then the rubber insulating gloves cannot be deemed to be providing secondary protection. Note: Rubber insulating gloves are also used as arc flash protection. Re-testing: The tests given after the initial acceptance test, usually performed at regular periodic intervals or as required because of physical inspection. Note: The following other tasks are also performed in addition to electrical testing (dielectric) as part of a retest: check-in, washing, preliminary inspection, repair, drying, final inspection, recordkeeping and marking, powdering, pairing, packaging and storage/shipping. Tracking: Irreversible degradation of surface material from the formation of conductive carbonized paths. Note: Tracking normally occurs due to leakage of electrical current across an insulating surface caused by dirt, moisture, etc.

5 Department MPROC Page 5 of RESPONSIBILITIES Responsibilities by both Vale and its personnel, in accordance with the Rubber Insulating Glove Procedure, include: : Vale purchases Type I (non-resistant to ozone) rubber insulating gloves (rubbers and leathers) for its personnel. The rubbers and leathers are matched to maintain the required minimum distances between the edge of the leathers to the cuff of the rubbers. The following three classes are made available: Class Maximum Line -to- Line Voltage Rating Rubber Label Color Distance (EUSA rules) Volt Beige ,000 Volt Red 0.5 II 17,000 Volt Yellow.0 The site s designated electrical authority is to make this procedure known to all glove users. Personnel must never use the rubbers without the appropriate leathers. Personnel must never use the leathers for any other purpose. Personnel must exchange gloves (leathers and/or rubbers) when they become damaged or when the worker to whom they were assigned has reason to doubt their condition. Personnel must not wear hand and/or arm jewelry while wearing gloves. Each site will have a list(s) of their gloves and a scheduled exchange/re-test program for them. 7.0 LOW VOLTAGE RUBBER INSULATING GLOVES CLASSES 00 & 0 1. Workers who are required to wear rubber insulating gloves should be trained in the proper Class selection and their care and use (Section 8 of ASTM F496 or Vale s presentation titled Care, Use and Maintenance of Rubber Insulating Gloves EQUAL# EL304).. Only rubber insulating gloves which have an ASTM D10 rating on the cuff label should be used. In Europe, the gloves shall also have a CE marking.

6 Department MPROC Page 6 of 1 3. The rubber insulating gloves should properly fit the worker. Individual fit is recommended. Cloth gloves may be worn inside the rubber insulating gloves for warmth in cold weather and/or to absorb perspiration in hot weather. 4. Rubber insulating gloves used as primary protection should have a legible expiry date and should never be used beyond this 3 month expiry date, in accordance with the Utilities Safety Rules (EUSA) dated Where rubber insulating gloves are used as secondary protection, an expiry date on the rubber insulating gloves is not recommended. The last test date on the rubber insulating gloves should not be older than 1 months since tracking is not an issue at these low voltages. Frequency of use and other factors are to be assessed by the site to determine the proper re-testing interval to minimize risks to as low as reasonably achievable. 6. Before each day s use, the worker should assure himself that the leather protectors are in good condition; have not been used for any other application; and do not encroach on the minimum distance to the cuff of the rubber insulating gloves. 7. Before each day s use, the worker should assure himself that the rubber insulating gloves are in good condition; have not been used without the leather protectors; pass the air test, and re-testing is current. 8. Rubber insulating gloves should not be used on voltages higher than their rating Class. 9. A protective carrying case should be issued with low voltage rubber insulating gloves to encourage their use and proper care. 10. Rubber insulating gloves should be stored in protective cases; away from energized electrical apparatus where ionization or corona may be present; and in their natural shape, i.e. not be stored folded, creased, inside out, compressed, or in a manner that will cause stretching or compression.

7 Department MPROC Page 7 of HIGH VOLTAGE RUBBER INSULATING GLOVES CLASS 1. Workers who are required to wear rubber insulating gloves should be trained in the proper Class selection and their care and use (Section 8 of ASTM F496 or Vale s presentation titled Care, Use and Maintenance of Rubber Insulating Gloves EQUAL# EL304).. Only rubber insulating gloves which have an ASTM D10 rating on the cuff label should be used. In Europe, the gloves shall also have a CE marking. 3. The rubber insulating gloves should properly fit the worker. Cloth gloves may be worn inside the rubber insulating gloves for warmth in cold weather and/or to absorb perspiration in hot weather. 4. Rubber insulating gloves used as primary protection should have a legible expiry date and should never be used beyond this 3 month expiry date, in accordance with the Utilities Safety Rules (EUSA) dated Where rubber insulating gloves are used as secondary protection, an expiry date on the insulating gloves is not recommended. The last test date on the rubber insulating gloves should not exceed 1 months. Rubber insulating gloves should not be kept inservice beyond 6 months. The implementation of an in-service glove tracking system assists workers in evaluating rubber insulating glove re-testing periods. Frequency of use and other factors are to be assessed by the site to determine the proper re-testing interval to minimize risks to as low as reasonably achievable. 6. Before each use, the worker should assure himself that the leather protectors are in good condition; have not been used for any other application; and do not encroach on the minimum distance to the cuff of the rubber insulating gloves. 7. Before each use, the worker should assure himself that the rubber insulating gloves are in good condition; have not been used without the leather protectors; pass the air test, and re-testing is current. 8. Rubber insulating gloves should not be used on voltages higher than their rating Class. Since the maximum voltage rating of rubber insulating gloves is 36,000 Volts (Class 4), gloves may be worn for higher voltages as secondary shock protection only. This applies for the Power Department only who follow EUSA rules. 9. Rubber insulating gloves should be stored in protective cases; away from energized electrical apparatus where ionization or corona may be present; and in their natural shape, i.e. not be stored folded, creased, inside out, compressed, or in a manner that will cause stretching or compression.

8 Department MPROC Page 8 of RECOMMENDATIONS The following recommendations are intended to support the procedures and requirements of the : Departments should stagger their exchange or re-testing programs to avoid having all rubber insulating gloves expired due to factors out of their control. On-hand spares should be available for replacing rubber insulating gloves which do not pass pre-use inspection. Low Voltage, Class 00 & 0 gloves (leathers and rubbers): Each site will maintain a list of employees fitted with gloves as per SPI SAF-Z46. High Voltage, Class II gloves (leathers and rubbers): Each site should have an ample supply of sizes available to accommodate the needs of the glove users. Each site will maintain a list of those gloves as per SPI SAF-Z APPENDICES endix A: Cost Comparisons endix B: Stock Codes for Gloves endix C: Accredited Testing Facility Details endix D: Revision Notes & rovals

9 Department MPROC Page 9 of 1 endix A Cost Comparisons The following table highlights the 015 costs for the three classes of rubber insulating gloves and compares that cost to their re-testing: Glove Type Purchase Price (015) Re-Testing Price Class 00 $69/pair $10/pair Class 0 $8/pair $10/pair Class II $175/pair $15/pair

10 Department MPROC Page 10 of 1 endix B Stock Codes for Gloves The following table provides the purchasing details for each class of both rubber and leather glove: Description Stock Codes Details Part Number Glove Bag Size 1 LTL11 for Class 0 gloves Class 0 Rubbers Size 9 E010Y-9 Class 0 Rubbers Size 9.5 E010Y-9.5 Class 0 Rubbers Size 10 E010Y-10 Class 0 Rubbers Size 10.5 E010Y-10.5 Class 0 Rubbers Size 11 E010Y-11 Class 0 Leathers Size 9 L33-9 Class 0 Leathers Size 9.5 L Class 0 Leathers Size 10 L33-10 to 10.5 Class 0 Leathers Size 11 L33-11

11 Department MPROC Page 11 of 1 endix C Accredited Testing Facility Details Lineman s Testing Laboratories 46 Meridian Road, Toronto, ON, M9W 4Z7 Phone: (416) ext. 106 (they have an Edmonton office at (780) ) krc@ltl.ca (Jackie Melanson) K-Tek Electro-Services Limited 50 Passmore Avenue, Scarborough, ON, M1V 4T1 Phone: (905) or (416) ext wvarela@k-line.ca Note: Accredited through the National Association of Independent Laboratories for protective equipment testing (NAIL). Canadian accredited testing facilities can be found via

12 Department MPROC Page 1 of 1 endix D: Revision Notes and rovals Rev Revision Notes Last Revised by: Phil Langlois SPI-ENG-000 was revised to reflect new Best Practice document issued by the MLRC Sub- Committee and reformatted to new Maintenance Standard document: MPROC PowerPoint Presentation: Care, Use, and Maintenance of Rubber Insulating Gloves Equal Code EL304.