Telephone Cables

Communication is the basic necessity of everyday living with the advent of our technology in telephone and data cables the communication thus becomes easier.

Raj Ratan telephone & Switchboard Cables are designed for total voice clarity without any hindrance of cross talk are mostly suitable for indoor use in large office/residential buildings, hotels and industrial complex for interconnection of telephone and intercom system, Pbx and in central exchange for interconnection of distribution framer switching and transmission equipments.

Special Features

- No Cross Talk
- Zero Noise Level
- High Speed Transmission
- Fire Retardant
- No Voice Loss

Construction

Conductor		Insulation			Rip Cord	Sheath
Material	Nominal Diameter (mm)	Material	Nominal Thickness (mm)	Nominal Dia of Insulated Conductor (mm)	Material	Material	Minimum Thickness (mm)
Bright Annealed Pure Electrolytic Tinned Copper	0.50	LDPE	0.20	0.95	Nylon	FR PVC with high oxygen and temperature induces	1 pair 0.50 2-8 pair 0.65 10 pair 0.75

Color Combination

No. of Pairs	2 Pair	5 Pair
Pair No- 1	White – Blue	White – Blue
Pair No. 2	White – Orange	White – Orange
Pair No. 3		White – Green
Pair No. 4		White – Brown
Pair No. 5		White –Grey

Electrical Parameters

Conductor Resistance	Max. 92.20 ohm / Km at 20⁰C
Mutual Capacitance	Max. 50 nf/ Km
Insulation Resistance in Air	Min . 10000 M-ohm / Km
Capacitance Unbalance Pair to Pair	Max. 250 pf/ 100 m