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
C. Warning/Danger signs made of red plastic (vinyl) with white letters at least 25 mm
high reading "DANGER High Voltage" shall be fixed to the entrance doors of all
11 kV switchgear and transformer rooms.
D. Warning/Danger signs made of red plastic (vinyl) with white letters at least 15
mm high reading "DANGER 380V"or “DANGER 220V” as appropriate, shall be
fixed to the lids, covers or doors of any equipment which contains terminals or
conductors connected to more than one phase of a low voltage supply.
E. All signs shall be in English and Arabic.
2.09 LANGUAGE
A. The Arabic and English languages shall be used for all labeling and charts.
PART 3 EXECUTION
3.01 PREPARATION
A. De-grease and clean surfaces to receive nameplates and labels.
3.02 INSTALLATION
A. Install warning and descriptive labels as follows :
1. Metallic surfaces using stainless steel or chromium plated bolts and/or self
tapping screws.
2. Concrete surfaces or masonry walls using and brass wood screws.
3. Timber surfaces using minimum 6 mm countersunk brass screws.
4. All insulated enclosures using an approved plastic welding adhesive.
B. The danger sign and identification number shall be affixed to the front or access
doors of all transformers and switches. For equipment with two doors the danger
sign shall be mounted on the left door with the identification number mounted on
the right door. Both the danger sign and the identification number shall be
centered 300 mm below the top edge of the doors and on the vertical centerline of
each door.