FRP Rods CSM

FRP RODS/CSM

TELEROD GLASS FIBRE REINFORCED PLASTIC ROD (GFRP)

The FRP rod or the Central Strength Member (CSM) provides tensile strength to the Fibre Optic Cable protecting it during installation and its rigidity prevents cable buckling during the life of the cable.

TECHNICAL DATA GFRP (GLASS FIBRE REINFORCED PLASTIC ROD)

Technical Data GFRP (Glass Fibre Reinforce Plastic Rod)

Physical Properties & Test methodsIn exports it can only be the limit
Glass Content	80±2%	(DIN EN ISO 1172)
Density	2.15g/cm³(0.08Ib/in³)	(DIN 53479)
Diameter Stability	±0.05 mm ±(0.002 in)
Ovality	< 0.05 mm (<0.002 in)
Splices	None

Mechanical Properties

Ultimate Tensile Strength	1.50Gpa	(2.18x10⁵psi)	ASTM D3916
Tensile Modulus	>50Gpa	(>7.25x10⁶ psi)	ASTM D3916
Elongation@break	>2.5%	>2.5%	ASTM D3916
Min bend radius	25xD at 22⁰ C	25xD at 72 ⁰F
Co-efficient of thermal expansion	5.2x10^-6//⁰C	2.9x10^6/⁰C	ASTM D696
Flexural Modulus	> 50Gpa	7.25x10³psi	ASTM D790
Heat Stress tolerance (bend radius ) 8 Days	50xD at 100 ⁰C	50xD at 212 ⁰F

UPJACKETED	-HDPE/LDPE is co-extruded on FRP rod to increase diameter as per customer requirement.
EAA COATED	-Ethylene Acrylic Acid (EAA) is coated on FRP to give excellent adhesion to cable jacket polymer.
WATER BLOCKING	- FRP rod is coated with super - absorbent polymer to block water.
METERED	- Length marking is provided at every meter.
TRACER EMBEDDED	- A tracer wire is embedded in the FRP for locating buried fibre optic cable for maintenance.
FINE RODS	- Thin FRP of diameter 0.4mm and 0.5mm for FTPH cable with small bending radius.
ARAMID ROD (ARP)	- Very high modulus ARP rods are made of aramid yarns to give more strength in small diameter. Extensively used in FTTH cables for its property of very small bending radius.

TECHNICAL DATA ARP (ARAMID REINFORCED PLASTIC ROD)

Technical Data ARP (Armid Reinforced Plastic ROD)

Physical Properties & Test methods
Aramid Content	68±2%	(DIN EN ISO 1172)
Density	1.3 gm(cm³⁾	(DIN 53479)
Diameter Stability	±0.05 mm
Ovality	< 0.05 mm
Splices	None

Mechanical Properties

Ultimate Tensile Strength	1.50Gpa	ASTM D3916
Tensile Modulus	>60Gpa	ASTM D3916
Elongation @ break	>2.0%	ASTM D3916
Min bend radius	16 x D at 22⁰ C
Co-efficient of thermal expansion	-2.3x10^6/⁰C	ASTM D696
Flexural Modulus	> 50Gpa	ASTM D790
Heat Stress tolerance (bend radius ) 8 Days	50xD at 100 ⁰C

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