Cable Design Criteria

Transcription

1 Cable Design Criteria (Group) Construction (0 Pairs) Each sub-unit (group) made up of quads (0 pairs) 0 0 (Group) Construction made up of 0 Pairs Unit or Core Construction of Telephone Cables Up to 00 Pairs 0 0 Pair core (Made up of sub-unit) 0 Pair core ( sub-unit) 0 Pair core ( sub-unit) 0 Pair unit or core ( sub-unit) 00 Pair unit or core (0 sub-unit) Unit or Core Construction of Telephone Cables Including 00 Pairs and More 0 Pair core (x0 pair unit) 00 Pair core (x0 pair unit) 00 Pair core (x0 pair unit) 00 Pair core (x0 pair unit) 00 Pair core (x00 pair unit) Pair core (x00 pair unit) 00 Pair core (x00 pair unit) 00 Pair core (x00 pair unit) 00 Pair core (x00 pair unit) 00 Pair core (x00 pair unit)

2 Binding Tape Colors of and Unit Color Codes of Insulation for 0 pair System Pair Wire A Wire B Color Codes Binding Yarn for 0 pair System Grup Color of Binding Yarn Color Code of Insulation For Pair System 0 0 Conductor A 0 0 Conductor B Color Codes of Insulation for Star Quad System Quad 0 Wire A Wire B Color Code of Group For Pair System 0 Wire C Wire D Color Codes of Group for Star Quad System Grup 0 Color of Binding Yarn

3 Cable Core Construction Number of Pairs in Cable Core Number of quads, sub-units and units layers Construction st Layer nd Layer rd Layer tes Quad 0 Pair Unit 0 Pair Unit 0 Pair Unit 0 Pair Unit 00 Pair Unit 00 Pair Unit 00 Pair Unit 00 Pair Unit 00 Pair Unit 00 Pair Unit - construction also - 0 pair unit construction also - 00 pair construction also - Cables exceeding 00 pairs, shall be produced according to customer request % spare pairs in relation with the total quarantied number of pairs shall be put within layers in proper way. PVC Insulated Pair Type Cables Electrical Characteristics Conductor Diameter 0, 0, Conductor 0 C (Ω/km),0,,, Mutual Hz (nf/km) Capacitance Between Pair Unbalance PF/ 00 mt Between Adjacent Pairs Insulation 00 V DC (M Ohm km) Min 0 0 Dielectric Strength AC Voltage for min Pair to Pair Pair to Ground

4 PE Insulated Pair Type Cables Electrical Characteristics Conductor Diameter 0, mm 0, mm Conductor 0 C (Ω/km) Mutual 00 Hz (nf/km) Capacitance Unbalance PF/ 00 mt Between Pair Unbalance to Earth 0, mm 0, mm 0, mm Max 0,, 0,, Max Max Max Insulation 00 V DC (M Ohm km) Min Dielectric Strength AC Voltage for min Pair to Pair Pair to Ground PE Insulated Quad Type Cables Electrical Characteristics Conductor Diameter 0, mm 0, mm Conductor 0 C (Ω/km) Mutual Hz (nf/km) Capacitance Unbalance PF/ 00 mt Between Pair Between Adjacent Quads Unbalance to Earth 0, mm 0, mm Max,,0,,,,,, Max 0 0 Max Max Max Insulation 00 V DC (M Ohm km) Min Dielectric Strength AC Voltage for min Pair to Pair Pair to Ground DC Voltage for Seconds *Pair-Screen *Only for PAP type cables.

5 Type Codes of Copper Insulated Cables A-BCDEFG HxI JKLMN A Basic Types A- - Outdoor telephone cables J- - Installation cables AJ- - Outdoor cable with protection against inductive influences T- - Terminating cable B Insulation Types 0Y - Cellular PE Y - Solid PE 0YS - Foam Skin Insulating cover of cellular PE with additional skin of solid polyolefine. Y - PVC H - LSZH C Filling F - Petroleum jelly filling Blank - Unfilled D Screening Material (St) - Static shield of plastic-backed aluminum Tape for indoor cables D - Shield of copper wire whipping over one stranding element (e.g. pair) LR - Corrugated alumnium tape Blank - screen E Bedding Material Y - PE Y - PVC H - LSZH M - Lead Sheath MZ - Special Alloyed Lead Sheath Blank - Bedding F Armouring Material b - Armouring SR - Corrugated steel tape T - Messenger of galvanized steel wires. Blank - Armour G Sheath Material Y - PE Y - PVC H - LSZH (L)Y - Laminated sheath (shield of PE coated aluminium tape bonded with PE sheath). M - Lead Sheath MZ - Special Alloyed Lead Sheath Blank - Sheath H Number of Pairs/Quads x - Pairs x - Quads I Conductor Size mm mm mm mm mm J Stranding Element PiC - Pairs shielded with copper braid PiMF - Pairs shielded with aluminium/polyester tape St - Star Quad(Phantom) StI - Star Quad(trunk cable) StIII - Star Quad (local cable) TIC - Triple shielded with copper braid TiMF - Triple shielded with aluminium/polyester tape K Cable Type S - Railway signaling cable L Types of Stranding Lg - Stranded in layers Bd - Unit Type stranding M Copper/Steel Tape/Braid Screen Options (..Cu) - Total cross section of copper shield in mm sq (fk) - Longitdinally applied copper tape, supplement to (St) B - two layers of steel tape, thickness of steel tape in mm N Fire Resistance Options E0-0mins circuit integrity according to DIN VDE 0 Part E0-0mins circuit integrity according to DIN VDE 0 Part F0-0 C 0mins Insulation integrity according to IEC 0&VDE 0-

6 Type Codes of Fiber Optic Cables A-BCDEFG HxI JKLMN Type Codes for Optical Cables DIN / VDE Code Explanation of the Code A Outdoor Cable B (BN) D E F FR G H J K (L) LG CT S Q (SR) (SG) Y Y Y (ZN) (ZM) Armoring Glass Yarn n-metallic armoring Loose Buffer Tube Single Mode Fiber Filling Compound in the cable Core Cable with the improved burning behavior Multi mode Fiber Halogen free jacket Indoor Cable Slotted Core Laminated Aluminum Sheath Stranded in Layers Central Tube construction Metallic Elements in core Dry Swellable material in the cable core Armoring by laminated corrugated longitudinal overlapped steel tape Armoring by laminated smooth longitudinal overlapped steel tape Jacket or protective cover of Polyvinyl chloride (PVC) Jacket or protective cover of Polyethylene(PE) Jacket or protective cover of Polyamide(PA) n-metallic anti buckling and strength member n-metallic anti buckling and strength member in the Jacket