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
All joints between conduits and fittings shall be watertight using vinyl
cement recommended by the manufacturer of the conduit. A vinyl solvent
shall be used for permanent joints and a cement of the type that shall
remain in a sticky condition shall be used for expansion couplers.
A separate insulated earth wire shall be drawn into all PVC conduits.
The PVC conduits shall be installed generally in accordance with the
requirements set out for metal conduits. Additionally the method of
supporting PVC conduits shall allow for the longitudinal expansion and
contraction of the conduit.
2.03 CONDUIT (FLEXIBLE CONNECTIONS)
A. Where conduit work has to be terminated with a flexible connection, as in the
case of motors, the rigid conduit shall be terminated in a box adjacent to the
motor and the connection between this box and the motor junction box made
in flexible conduit. This shall be a corrosion resistant flexible metal tubing
with a polyvinyl chloride sheath terminated at each end by a compression
gland screwed into the connection boxes. An insulated stranded copper
connection of section not less than that quoted in Table 54F of the I.E.E.
Regulations shall be provided in each instance to ensure earth continuity.
2.04 CONDUIT (CAPACITY)
A. The number of polyvinyl chloride single core cables run in any one
conduit shall be restricted in accordance with concerned local authorities
Regulations (latest Edition).
Where three-phase circuits are run in conduit all three phases and the
neutral of the circuit shall run in the same conduit.
2.05 METALLIC CONDUIT BOXES FOR EXTERIOR LOCATIONS