Specifications

NAIROBI OPERATIONAL HUB
UNOPS Building, UN Lane, Off UN Avenue Tel: [phone]
P.O Box 783,Village Market, 00621 E-mail: [e-mail]
Nairobi, Kenya Website: www.unops.org
UNOPS is ISO 9001 certified
luminaire, a separate terminal block shall be provided in an adjacent junction
box connected back to the luminaire in heat resistant (135
o
C) cable of
adequate size.
7. All luminaires shall be suitable for connection to rigid conduit, and/or flexible
circular sheathed cable.
8. all weather-proof luminaires shall be fully suitable for outdoor use and shall
not deteriorate after extended use in the ambient site conditions state.
9. All mounted luminaires shall be connected to the control box in heat resistant
(135
o
C) cable.
C. Fluorescent Luminaires.
1. Fluorescent luminaires shall be constructed of mild steel sheet finished with
an approved colour using an electrophoretic dip or electrostatic spray system.
The luminaires shall be of a construction which ensures rigidity and a
minimum of twisting, distortion, and light leakage.
2. All fluorescent luminaires specified for 26mm diameter fluorescent tubes shall
be complete with electronic start type control gear with automatic resetting
and RFI suppresser. All control gear shall be suitable for operation in ambient
temperatures up to 50 Deg. C.
3. Control gear shall comply with BSI standards and be of the ‘silent’ type.
4. All fluorescent fitting Ballasts units shall be fitted with power factor
correction capacitors which improve the power factor to not less than 0.9
lagging except where are electronic ballasts then no need for capacitor.
Wood chokes for T26 and compact fluorescent lamps.
i) Copper wire wound Ballasts with very short magnetic paths, vacuum
impregnated and topicalised, suitable for operation from 230V/50Hz
single
phase AC supply, Class H insulation, maximum winding temperature of
130
o
C and push in terminals. The ballasts shall be of low loss type, with
losses not exceeding the values given below.
- 18W - 6.5W
- 36W - 6W
- 58W - 9W
- 24W - 6W
- 36W - 6W
- 18W - 4W
ii) Electronic ballasts for T26 and compact fluorescent lamps.
Ballasts comprising passive electronic components, to run the lamps at a