Allowable Ampacity for 250 MCM 3C Tinned Copper Shielded EPR CPE/CR 8KV Fleximining Medium Type SHD GC Cable: 100 Amps

About:

The cable you're referring to, "250 MCM AWG 3C Tinned Copper Shielded EPR CPE/CR 8KV Fleximining Medium Type SHD GC Cable," is a specific type of electrical cable with certain characteristics and uses.

Also Known As:

This type of cable might have different names or designations in various industries or regions. However, the specifications you've provided are quite detailed, so it's often referred to by these exact terms.

Application:

• These cables are designed for use on AC off track equipment, long wall miners loaders, drills, shovels, conveyors, pumps and mobile equipment requiring grounding conductors and a ground check conductor and metallic shielding overall.
• Suitable for other industrial and mining applications such as cable reelers, festoons, gantry cranes, stackler/reclaimers.

Standards:

Cables of this type are usually manufactured in accordance with certain industry standards, which may include ANSI, ICEA, UL, and others. These standards ensure reliability, safety, and performance, especially in specialized applications like mining.

Construction:

• Power Conductors: Flexible tinned copper conductor, acc. to ASTM B-172/174
• Inner Semi-Conductive layer: Polyester tape (2 kV) or semi-conducting compound (from 5 kV up to 25 kV)
• Insulation: Rubber EPR compound
• Power Screen: mixed tinned copper wires + textile fiber or polyamide braid on each power core
• Ground Conductors: Two flexible tinned copper conductors acc. to ASTM B-172/174, uninsulated
• Monitoring Insulation: PP compound
• Cores color: Power: Textile fiber or polyamide braid on each power core: black, white, red acc. to ICEA S-75-381, black, black, red (2 kV), black, blue, red (from 5 kV up to 25 kV) acc. to CSA C22.2 No. 96-17, Monitoring: yellow
• Stranding: 3 power conductors laid up with 2 ground-conductors and a monitoring conductor in interstices
• Inner Sheath: Black (similar to RAL 9005), special rubber CPE or rubber compound
• Supporting Screen: Anti-twisting protection of polyester or polyamide braid
• Outer Sheath: Black (similar to RAL 9005), special rubber CPE or CR compound

Features:

• acc. to ICEA S-75-381/NEMA WC-58 or CSA C.22.2 No. 96-17
• CSA C.22.2 No. 96-17 version identified with ”5” on the 5th number of the Part. n
• MSHA approval
• *Current carrying capacity acc. to ICEA S-75-381 Table I-1, 40°C ambient temp. / 90°C cond. temp.
• Excellent flexibility
• Oil and heat resistant
• Ozone resistant
• Sunlight resistant
• Weather resistant
• Impact resistance
• Abrasion resistance
• On request PUR outer sheath
• For Minimum Bending Radius 
• RoHS approval

Specifications:

• Power AWG no: 3x250 MCM
• Ground AWG no: 2x1/0
• Monitoring AWG no: 1x8
• Outer-Ø ca.mm ± 10%: 70,5
• Maximum tensile load N: 5800
• Current carrying capacity A: 355
• Nominal voltage: 2 kV up to 25 kV
• Temperature range UL: Fixed laying: -30°C up to +90°C, Flexible installation: -50°C up to +90°C
• Max. temperature in short circuit: + 250 o C
• Min. bending radius: 15 x D
• Cable Weight approx Lbs/Mft: 6102
• Part Number: 02110P70037A5C