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Materials Requirements According to ICEA S-75-381

 

Table 1 Power Conductor Insulation Requirements :

  • The insulation for the power conductor shall meet the requirements given in the table below.
  •   Ethylene Propylene Crosslinked Polyethylene
      Type I Type II
      Up to 2 kV Above 2 kV Up to 2 kV Above 2 kV Up to 2 kV Above 2 kV
    1.INITIAL PHYSICAL PROPERTIES          
    Tensile strength, minimum, psi 700 700 1200 1200 1800 1800
    Tensile stress@100%          
    Elongation, minimum, psi - - 500 500 - -
    Elongation at rupture, minimum,% 250 250 150 150 250 250
    2.AIR OVEN AGING
    (After Conditioning@121℃ +/-1℃for 168 hours)    		          
    Tensile strength & elongation minimum, percentage of
    unaged value    		 75 75 75 75 75 75
    3.ACCELERATED WATER ABSORPTION          
    Dielectric constant after 24 hours, maximum 6.0 4.0 6.0 4.0 6.0 3.5
    Increase in capacitance maximum, percent          
    1-14 days 5.0 3.5 5.0 3.5 3.0 3.0
    7-14 days 3.0 1.5 3.0 1.5 1.5 1.5
    *Stab. factor after 14 days or 1.0 1.0 1.0 1.0 1.0 1.0
    *Alternate to Stability Factor (Stability Factor Difference)
    1-14 days max.    		 0.5 0.5 0.5 0.5 0.5 0.5
    4.INSULATION RESISTANCE          
    IR@15.6℃, minimum, Megohms-1000ft 10,000 20,000 10,000 20,000 10,000 20,000
    5.ADDITIONAL REQUIREMENTS          
    Power factor maximum, % after 24 hr - 2.0 - 2.0 - 2.0
    **Permittivity (SIC) - 4.0 - 4.0 - 3.5
    Hot creep (ICEA T-28-562) (After conditioning@150℃+/-2℃)         All Voltages
    ***Unfilled ***Filled
    Elongation, maximum % 50 50 50 50 175 100
    Set, maximum, % 5 5 5 5 10 5
  • * Only one of these two requirements needs to be satisfied, not both.
  • **Applies only to cables rated 5,001 volts and above.
  • ***If this value is exceeded, the solvent extraction test may be performed and will serve as a referee method to determine compliance. Requirement shall be 30 percent maximum extractibles after 20 hours drying.

Table 2 Ground Check Conductor & Control Conductor Insulation :

 

   Requirements............................................................................................................................

  • The insulation for the ground-check and control conductors shall be one of the types given in the table below and shall meet the requirements specified in it.
  •   Crosslinked Thermoplastic
      Ethylene Propylene Crosslinked
    Polyethylene    		 Chlorinated
    Polyethylene    		 Chlorosulfonated
    Polyethylene    		 Thermoplastic
    Elastomer    		 Polypropylene
      Type I Type II
    1.INITIAL PHYSICAL PROPERTIES (At Room Temperature)              
    Tensile strength, minimum, psi 700 1200 1800 1500 1500 1500 3000
    Tensile stress@100%            
    Elongation, minimum, psi - 500 - - - - 2500
    Elongation at rupture, minimum, percent 250 150 250 300 300 300 300
    Set, maximum, percent - -   30 30  
    2.AIR OVEN AGING REQUIREMENTS              
    After conditioning@℃ +/-1℃ 121 121 121 121 121 121 100
    Hours 168 168 168 168 168 168 48
    Minimum percent retention of original value              
    Tensile strength 75 75 75 85 85 75 75
    Elongation 75 75 75 55 50 75 75

Table 3 Extra-Heavy-Duty Crosslinked Jackets and Thermoplastic :

 

   Polyurethane........................................................................................................................................

  • The jacket for portable cables shall meet the appropriate requirements in Table 3 and 4
  •   Chlorinated
    Polyethylene
    (CPE)    		 Neoprene (PCP) Nitrile Butadiene
    (NBR)/Polyvinyl
    Chloride (PVC)    		 Chlorosulfonated
    Polyethylene*
    (CSP/CSPE)    		 Thermoplastic
    Polyurethane
    (TPU)
    1. PHYSICAL PROPERTIES          
    Tensile strength, minimum, psi 2400 2400 2400 2400 3700
    Tensile stress at 200 percent elongation, minimum, psi 700 700 700 700 800
    Elongation at rupture, minimum, percent 300 300 300 300 400
    Set, maximum, percent 30 20 30 30 N/A
    Tear resistance, minimum, ppi 40 40 40 40 80
    2.AGING REQUIREMENTS (After air oven test at 100℃ +/-1℃ for 168 hours)          
    Tensile strength, minimum, percentage of unaged value 70 50 50 70 50
    Elongation at rupture, minimum, percentage of unaged value 55 50 50 60 75
    3.AGING REQUIREMENTS (After oil immersion test at 121℃ +/-1℃ for 18 hours)          
    Tensile strength and elongation, minimum, percentage of unaged value 60 60 60 60 60
    4.ELECTRICAL REQUIREMENTS          
    Surface resistance,nonshielded cables minimum, megohms 100 100 100 100 N/A
  • *Also known as Chlorosulfonyl Polyethylene.

Table 4 Heavy-Duty Crosslinked Jackets :

  • The jacket for portable cables shall meet the appropriate requirements in Table 3 and 4.
  • The jacket for mine power feeder cables shall be a crosslinked jacket meets the requirements of Table 4 or a thermoplastic jacket that meets the requirements of Table 5.
  • 1. PHYSICAL REQUIREMENTS      
    Tensile strength, minimum, psi 1800 1800 1800 1800
    Tensile stress at 200 percent elongation, minimum, psi 500 500 500 500
    Elongation at Rupture, minimum, percent 300 300 300 300
    Set, maximum, percent 30 20 30 30
    2.AGING REQUIREMENTS (After air oven test at 100℃ +/-1℃ for 168 hours)      
    Tensile strength, minimum, percentage of unaged value 85 50 50 85
    Elongation at rupture, minimum, percentage of unaged value 55 50 50 65
    3.AGING REQUIREMENTS (After oil immersion test at 121℃+/-1℃for 18 hours)      
    Tensile strength and elongation, minimum, percentage of unaged value 60 60 60 60
    4.ELECTRICAL REQUIREMENTS      
    Surface resistance,nonshielded cables minimum, megohms 100 100 100 100
  • *Also known as Chlorosulfonyl Polyethylene.

Table 5 Thermoplastic Jacket Requirements :

  • The jacket for mine power feeder cables shall be a crosslinked jacket meets the requirements of Table 4 or a thermoplastic jacket that meets the requirements of Table 5.
  •   Polyvinyl Chloride (PVC) Chlorinated
    Thermoplastic
    Polyethylene (CM)    		 Thermoplastic
    Polyurethane (TPU)
    1.INITIAL PHYSICAL PROPERTIES      
    Tensile strength, minimum, psi 1500 1400 3700
    Elongation at rupture, minimum, percent 100 150 400
    2.AIR OVEN AGING REQUIREMENTS    
    After conditioning@℃ +/-1℃ 100 121 100
    Hours 120 168 168
    Tensile strength, minimum, percent of unaged value 85 85 50
    Elongation, minimum, percent of unaged value 60 50 75
    3.OIL IMMERSION    
    After conditioning@℃ +/-1℃ 70 100 121
    Hours 4 18 18
    Tensile strength, minimum, percent of unaged value 80 60 60
    Elongation, minimum, percent of unaged value 60 60 60
    4.HEAT DISTORTION,121℃+/-1℃, maximum,percent 50 25 -

Table 6 Heavy Duty Jackets Requirements (Type A) :

  • The jacket for portable arc-welding cables shall be a heavy-duty jacket meets the requirements of Table 6 or a medium-duty jacket that meets the requirements of Table 7.
  •   Natural
    Rubber
    (NR)    		 Styrene
    Butadiene
    Rubber
    (SBR)    		 Neoprene
    (PCP)    		 Nitrile
    Butadiene
    (NBR)/
    Polyvinyl
    Chloride
    (PVC)*    		 Chlorinated
    Polyethylene
    (CPE)
    ,Crosslinked    		 Ethylene
    Propylene
    Rubber
    (EPR)    		 Chlorosulfonated
    Polyethylene
    (CSP/CSPE)
    1.PHYSICAL REQUIREMENTS            
    Tensile strength, minimum, psi 3500 1800 1800 1800 1800 1800 1800
    Tensile strength, minimum, MPa 24.1 12.4 12.4 12.4 12.4 12.4 12.4
    Tensile stress at 200 percent elongation, minimum, psi 500 - 500 500 500 500 500
    Tensile stress at 200 percent elongation, minimum, MPa 3.45 - 3.45 3.45 3.45 3.45 3.45
    Elongation at rupture, minimum, percent 500 300 300 300 300 250 300
    Set, Maximum, percent 15 20 20 30 30 - 30
    Tear, resistance, mimimum, pounds per inch 40 - - - - - -
    Tear, resistance, mimimum, kN/m 7.01 - - - - - -
    2.AGING REQUIREMENTS            
    After air oven test at 100℃+/-1℃ for 168 hours            
    Tensile strength, minimum, percent of unaged value - - 50 50 85 75 85
    Elongation at rupture, minimum percentage of unaged value - - 50 50 55 75 65
    After air oven test at 70℃+/-1℃ for 168 hours            
    Tensile strength, minimum, psi - 1600 - - - - -
    Tensile strength, minimum, MPa - 11.0 - - - - -
    Elongation at rupture, minimum percentage - 250 - - - - -
    After air pressure heat test at 127℃+/-1℃ for 20 hours            
    Tensile strength and Elongation at rupture, minimum, percent of unaged value - - - 50 - - -
    After oxygen pressure test at 70℃+/-1℃for 96 hours              
    Tensile strength, minimum, psi 2500 1600 - - - - -
    Tensile strength, minimum, MPa 17.2 11.0 - - - - -
    Elongation at rupture, minimum percentage 400 250 - - - - -
    After oxygen pressure test at 80℃+/-1℃for 168 hours              
    Tensile strength and Elongation at rupture, minimum, percent of unaged value - - - 50 - - -
    After oil immersion test at 121℃+/-1℃for 18 hours            
    Tensile strength and Elongation at rupture, minimum, percent of unaged value - - 60 60 60 - 60
  • *Suitable for a minimum temperature of minus 10℃ (plus 14℉)

Table 7 Medium Duty Jackets Requirements (Type B) :

  • The jacket for portable arc-welding cables shall be a heavy-duty jacket meets the requirements of Table 6 or a medium-duty jacket that meets the requirements of Table 7.
  •   Styrene
    Butadiene
    Rubber (SBR)    		 Neoprene
    (PCP)    		 Nitrile Butadiene
    (NBR)/Polyvinyl
    Chloride (PVC)*    		 Chlorinated
    Polyethylene
    (CPE)
    ,Crosslinked    		 Ethylene
    Propylene
    Rubber (EPR)    		 Chlorosulfonated
    Polyethylene
    (CSP/CSPE)
    1.PHYSICAL REQUIREMENTS          
    Tensile strength, minimum, psi 1200 1200 1500 1500 1200 1200
    Tensile strength, minimum, MPa 8.27 8.27 10.3 10.3 8.27 8.27
    Elongation at rupture, minimum, percent 250 250 250 300 150 250
    Set, Maximum, percent - 20 30 35 - 30
    Tear, resistance, mimimum, pounds per inch          
    Tear, resistance, mimimum, kN/m          
    2.AGING REQUIREMENTS          
    After air oven test at 100℃+/-1℃ for 168 hours          
    Tensile strength, minimum, percent of unaged value - 50 50 85 75 85
    Elongation at rupture, minimum percentage of unaged value - 50 50 55 75 65
    After oxygen pressure test at 70℃+/-1℃for 48 hours          
    Tensile strength, minimum, psi 1000 - - - - -
    Tensile strength, minimum, MPa 6.89 - - - - -
    Elongation at rupture, minimum percentage 100 - - - - -
    After oxygen pressure test at 80℃+/-1℃for 168 hours          
    Tensile strength and Elongation at rupture, minimum percent of unaged value - - 50 - - -
    After air pressure heat test at 127℃+/-1℃for 20 hours          
    Tensile strength and Elongation at rupture, minimum, percent of unaged value - - 50 - - -
    After oil immersion test at 121℃+/-1℃for 18 hours          
    Tensile strength and Elongation at rupture, minimum percent of unaged value - 60 60 60 - 60
  • *Suitable for a minimum temperature of minus 10℃ (plus 14℉).