Volume-IF - JantERmantER

PEM-6666-0
TITLE SPECIFICATION NO. PE-TS-360-620-C001
TECHNICAL SPECIFICATION FOR
VOLUME: IIB
STACK ELEVATOR
SECTION C
REV 0 DATE
SHEET
OF
i) Train cable in place and cut squarely to required length, Avoid sharp bends.
ii)
iii)
iv)
Remove necessary amount of cable jacket and insulation without damage to the
conductor.
Install terminals or connectors as required, ensuring a firm metal-to-metal contact.
If the connection requires insulation, (i.e. cable connects to insulated conductors),
apply three half-lapped layers of insulating tape over the joint, extending to two cable
diameters over the cable jacket and a similar distance over any other insulation or
connection requiring insulation.
6.03.09 Earthing
Insulated conductors shall be tested after installation with a 1000 volt megger or an eqivalent
testing device and shall indicate approximately infinite resistance between conductors of the
same circuit and between conductors and ground. Equipment and labour required for testing
shall be provided by the Contractor. Any circuit failing to test satisfactorily shall be replaced
or repaired and retested as directly by the Engineer-in-Charge.
a) General
Earthing system furnished and installed and include a complete earthing system for the
elevator. Earthing equipment and materials shall be furnished and installed in accordance with the
reference codes and standards these specification and the contractor’s shop drawings as reviewed and
accepted by the Engineer-in-Charge.
b) Materials
The earthing of all electrical items being supplied by the Bidder shall be in his scope. For earthing the
various equipment, conductor sizes shall be as listed below:
i) MCCs Motor above 90 KW : 50 x 6 Sq.mm G.I. flat
ii)
Motors above 30 KW, upto
75 KW and lighting panel/
control panels/auxiliary panels : 25 x 6 Sq. mm G.I. flat
iii) Motor above 5 KW upto 30 KW : 25 x 3 mm G.I. flat
iii)
Motors upto 5 KW and misc.
Small item like conduits,
Junction boxes etc.
The earthing strip/wire shall be connected to the earthing mat by the Bidder provided in the
chimney area. Clamps and other hardware of iron or steel used with the grounding system
shall be hot-dip galvanized. Bolts, washers and nuts shall be hot-dip galvanized steel.
Installation
Exposed conductors shall be installed inconspicuously in vertical or horizontal positions on
supporting structures. When located on irregular supporting surfaces or equipment, the
conductors shall run parallel or normal to dominant surfaces.
Conductors routed over concrete steel or equipment surfaces shall be kept in close contact
with those surfaces by using fasteners located at intervals not to exceed one (1) metre.