METHOD STATEMENT FOR TTC TERMINAL INSTALLATION AND TELEPHONE WIRING TERMINATION
MATERIAL TO BE USED:-
Telephone terminal cabinet is made of steel enclosure with size 150 x
150 x 100 mm with sufficient knock outs and front door with lock. This
cabinet is flush mounted with labeling sheet equipped with relevant terminal
block and have 20 % spare for future expansion and wiring for extra
terminal blocks.
Terminal block are of Krone make and have thermo plastic bodies, Nickel
plated brass connectors galvanized screw terminals in both sides, wire guide
and have following specifications.
range of conductor diameter: up to 1.2mm
dielectric strength: 1500V (r, m, s)
minimum insulation resistance: 1000 M ohms at 500 V (dc)
Ambient Temp: 40° C
Relative Humidity: 5 to 95%
Terminal block: 10 pairs
Telephone cables used are 2p shielded 0.6mm dia.used between telephone
cabinet and telephone outlets.
12 pair shielded 0.6mm dia.is used between STC box to telephone terminal
cabinet.
Both the wires / cables are AM AGO make.
Tools used:-
0. Screw driver set
1 . Telephone wire punching tool
2. Hand Crimping tools
3. Lugs 0.6 mm dia.
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INSTALLATION AND TERMINATIQNS:-
2 Nos. Telephone terminal blocks are installed on the guide rails provided in the telephone terminal cabinet and the terminal blocks are fitted with nuts and bolts of required size.
12 pair incoming telephone cable is also terminated in the terminals of same
terminal block but on the incoming side of terminals.
All 2 pair outgoing telephone cables are terminated at the telephone outlets at respective floors. These outlets are installed according to low current layout shop drawing at a height of 300mm from finished floor level where RJ 1 1 jack connector assembly is in built in the outlet.
Filled in circuit directory is pasted inside telephone terminal cabinet and
every connected terminal inside respective outlets on the floor are identified
by approved labels.
The testing for continuity of the lines inside villa is carried out upon completion.