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
16630
3 Phases Modular UPS Unit.
PART 1 GENERAL
This specification describes a continuous duty, solid state, Modular un-
interruptible power supply system, module 20KVA expandable to
40KVA OF 10KVA each module, hereafter referred to as the UPS. The
UPS shall operate in conjunction with the building electrical system and
the generator to provide high quality power for Telecommunication
systems. The system shall consist of an inverter, rectifier/battery
charger, storage battery, a static bypass transfer switch, synchronizing
circuitry and an internal maintenance bypass switch. Cooling fan, inlet
dust filter, harmonic filter a radio frequency interference suppression
filter at the input and output. The UPS capacity shall be as mentioned
in the B.O.Q.
PART 2 MATERIALS
A. All material and parts comprising the UPS shall be new of current
manufacture and shall not have been in prior service.
B. The UPS should be by a reputed manufacturer who is in the
industry for a minimum period of 20 years. The equipment must be
ISO 9001,ISO14001 certified and manufactured to International
standards such as CE,EN/IEC62040 &BS and to meet the
requirement of electronic equipment particularly Telecom.
C. Protection Class IP20
D. Audible Noise @ 1 meter 65dBA.
PART 3 SYSTEMS
The UPS shall be designed to operate as an on-line reserve transfer
system, and shall consist of a rectifier/battery charger, batteries,
inverter, static bypass transfer switch, synchronizing equipment,
protective devices, internal bypass switch and accessories as specified
herein that will automatically provide continuity of electric power without
interruption, upon failure or deterioration of the normal power
supply. Continuity of electric power to the load shall be
maintained for an emergency period with the inverter supplied by