PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

5 Amps and 15 Amps socket outlet shall normally be fixed at any convenient space
23 cms above the floor level or near such levels in special cases as desired by the
Engineer-in-charge. 15 Amps switch and socket should be an integral provisions of
an indicator diode. The switch for 5 Amps socket outlet shall be kept along with
socket outlet. However, in special case, if desired by the Engineer the 5 Amps.
socket outlet shall be kept at normal switch level and that for 15 Amp along with
the socket outlet. However, in special case, if desired by the Engineer the 5 Amp
socket outlet shall be placed at the normal switch level.
Where socket outlet are placed at lower levels, they shall be enclosed in a suitable
metallic box, as the case may be to harmonise with the system or wiring adopted. In
an earthed system of supply a socket outlet and plug shall be of the three pin type.
The third terminal shall be connected to earth.
Conductors connecting electrical appliance with a socket outlet shall be of flexible
twin cord with an earthing cored which shall be secured by connecting between the
earth terminal of plug and the metallic body of the electrical appliance.
Attachment of Fittings and Accessories :
In case of conduit wiring, all accessories like switches sockets, outlets, call bell
pushes and regulators shall be fixed in flush pattern inside metal boxes.
Accessories like ceiling roses, brackets, battens, stiff pendants, etc. shall be fixed on
metal outlet boxes.
Aluminium alloy or cadmium platted iron screws shall be used to fix the accessories
to their bases. The blocks/board shall normally be mounted with their bottom
1.25 m from floor level. The Boards shall have a sunmica finish.
Surface Conduit Wiring System :
Conduit pipes of approved gauge thickness shall be used. The maximum number of
VIR/PVC insulated 250 volts grade aluminum conductor cable that can be drawn in
one conduit of various sizes and the number of cables per conduit shall not be
exceeded. The minimum conduit disconnector shall not be less than 25 mm.
In long distance straight run of conduit, inspection type junction box at reasonable
intervals shall be provided.
GTS : General Technical Specification. Page 127