Contents

ACRONYMS AND ABBREVIATIONS 2

1. INTRODUCTION 3
2. SCOPE OF WORK 3
3. LIMITATIONS 4
4. FINDINGS AND RECOMMENDATIONS 4
5. CONCLUSION 11
Appendix01: Testing and Measurements 11
Appendix02: Load Estimation 13
ACRONYMS AND ABBREVIATIONS

Abbreviation Description
ATS Automatic Transfer Switch
CB Circuit Breaker
MCB Miniature Circuit Breaker
MCCB Molded Case Circuit Breaker
CU Consumer Unit
DP Distribution Panel
PS Power Socket
MDPB Main Distribution Panel Board
SDPB Sub Distribution Panel Board
DC Direct Current
BB Bus Bar
NS Normal Socket
BC Bus coupler
AC Alternating Current
OHSP Occupational Health and Safety Plan
RCD Residual Current Device
UPS Uninterruptible Power Supply
1. INTRODUCTION
This report outlines a detailed electrical inspection and testing service that LEGEND provided to SEMA SURVEYORS’ office located at
st
1 Floor Al-Kinz Plaza-North Parliament Building, Road # 1 Presidency Street, 26 June Avenue, Hargeisa-Somaliland , the
office building contained two room, storage area and corridor. The inspection was conducted on October 31, 2023 which has covered a
wide array of electrical critical components inspection of the office building included the examination of the main distribution panel board,
sub-distribution panel board, consumer unit, sockets, switches, conductors sizing and selection, Circuit Breaker and Earthing and bonding
protection system. Moreover, this inspection service incorporates the assessment of fire alarms and smoke detectors, fire
extinguisher, emergency exit lighting installation and the overall electrical load demand of the office space. The primary objective
was to assess the installed electrical system safety and security as well as to identify any potential hazards and issues and areas of
improvement within the electrical system installation and operation. And finally to provide the client a comprehensive report including
observations, findings and recommendations along with photos and testing measurement results.
2. SCOPE OF WORK
The scope of services includes inspection and testing for electrical system installations and proper operation, covering the following:
 Inspection for service drop and feeder entering to the office premises and check the size of the service conductors.
 Inspection and testing panel boards with all components & power factor correction units, IP rating including all necessary accessories
and ancillary works for MDPB and SDPB, CU, RCDs to be completely installed and tested.
 Testing and evaluation of circuit breakers to verify their effectiveness in controlling electrical circuits.
 Inspection and testing of copper conductors PVC/PVC insulated, including terminations, all necessary accessories and ancillary works
required for complete installation as specified, indicated in the design and completely complying safety standards and regulation.
 HVAC and Air conditioning split units installation and operation complying with the minimum technical design and installation
requirements
 Check that the load on the circuit does not exceed the circuit rating and verify the branch circuit loads do not exceed the maximum loads
allowed.
 Inspect that the branch circuits are enough for the load served and the load is evenly distributed.
 Check that the power sockets for specific loads meet the requirements of that particular demand.
 Inspection and testing of power socket outlets including the main circuit, conduits, conduit fittings, boxes, and all necessary accessories
and ancillary works as specified and as indicated in the design
 Inspection and test fire alarm and smoke detectors properly installed and functioning if applicable.
 Inspection and test fire alarm and smoke detectors properly installed and functioning if applicable.
 Assessment for system grounding and bonding and power surge protection.
 Review of compliance with industry standards and regulations.
 All signs and labels are accurate and Visible for the required areas
 Emergency system and UPS installation and proper operation during power outages for emergency.
 Verify and testing of electrical meters to ensure accurate measurement of electricity usage.
 Fire extinguishers CO2 are available for the office building in the required areas.

3. LIMITATIONS
It's important to note the limitations of this inspection. Limited access to certain areas and concealed wiring prevented a comprehensive analysis of
conduits and conductors, also electrical design, As built drawing and circuit wiring documents were not available during the inspection. Physical,
measurements & testing inspection were performed. As there is no electrical building code regulations in the country, LEGEND inspection experts have
been using the international best practice and standard compliance requirements for electrical installation system based on their prior experience with
similar projects.
4. FINDINGS AND RECOMMENDATIONS

CATEGORY:
ACTIONABILITY
IN COMER POWER SUPPLY
FINDING: A 1) pole
1. The service drop and feeder from utility that supplies
alignment/straighten
electricity to the office building has installed unprofessionally.
2. Unprotected outgoing conductors to the floor building ing and availabilty
were running on the surface of the wall without using of 3phase 4wire
conduits or any protection from harsh environment. system is for the
3. The power distribution pole is not vertically erected
utility company to
during installation and used the wall as support guy-wire.
4. Indicator lamp for the DPB is not operating undertake
2)conduits can be
RECOMMENDATION: A done or trunking by
1. Strongly advice that the service drop conductor shall building
properly designed a 3 phase 4 wire system and installed to management
ensure safety, and the reliability of the system. 3)Indicator lamp
2. All conductor both incomer and outgoing shall be used
conduits through the walls to protect from harsh environment and can be done with
mechanical damages. wiring In the DPB if
3. The power distribution pole shall be properly erected and lamp is still working
supported by stay.
4. Indicator lamp for the DPB shall be operated properly to
identify the power availability and correct operation.

CATEGORY:
MAIN DISTRIBUTION PANEL BOARD
FINDING:B
1.Only two phase conductors and one neutral are entering the
main CB.
2.The MDPB has no earthing and bonding.
3. MDPB has no power surge protection system to
prevent during the event of surges.
4.No circuit diagram details available on MDPB.
5.No labels or any sign from electrical hazards labeled
6. Pin lugs has not been used for cable terminations on the neutral
BB.
7.On the MDPB barrier against direct contact to the live
conductors has not been concealed.
8.Cable gland holds left open
9.Hazard stickers has not been displayed for the required
areas.
RECOMMENDATION: B 1)Incomer 3phase can be
1.The incomer cable to the main CB shall be three phase providedby the utility
with neutral. company 2)We can install 4ft
earth rod as in picture 2
2.Grounding and bonding system shall be installed and
above by hammering into the
connect the main earthing terminal of the board to an earth ground in picture 3 or
electrode. excavation with earthing
3.Power surge device shall be installed in the MDPB to detect material as resistivity is not
the excessive voltage from transient overvoltage and determined but will be
voltage sparks due to the lightning strike or grid fluctuations enough 3)We can install
to safeguard the sensitive electronics or electrical appliances voltage protection relay as in
from damage picture 1 4)Pin lugs can be
4.The detailed wiring diagram shall be displayed on the MDPB terminated in at the ends of
the conducting wire
to easily identify the connections and termination of each
circuit
5.Label for each conductor shall be displayed
6.All wires shall be terminated with pin lugs
7.On the MDPB cover barrier from the direct contact on the live
conductors shall be concealed.
8.All spare cable gland holes shall be covered
9. Display electrical hazard stickers at front electrical panels or
hazard potential areas.

CATEGORY:
MAIN DISTRIBUTION PANEL BOARD
FINDING: C
1. Single phase 2 pole CB used for the incomer from the service
drop.
2. One live wire from the service drop was looped.

RECOMMENDATION: C
1. Three phase 3 pole + neutral MCB shall be installed in
the MDPB.
2. Looped conductor shall be removed and each
phase conductors shall be properly installed with its respective
CB.
 1)separate RCBO which acts
as both MCB and leakage
current protector to be
installed with one of the two
phases looped in the DB
dedicated for the E.office
breaker shown in picture
1above with black marking
here 2)The neutral
termination for the E.office
in picture 2(with black
marking) to be terminated
properly

CATEGORY: For now we can just use the

MAIN DISTRIBUTION PANEL BOARD two lives provided depending
on the load distribution by
FINDING: D the utility from their
1. Three incomer conductors from the service drop transformer it should be
provided two live wires and neutral as depicted on the photo enough
on the right hand side
RECOMMENDATION: D
1. Three phase incomer with neutral shall be installed with the
three phase, 3 pole+ neutral MCCB Residential type not
less than 80A or above based on
the design requirement

CATEGORY: NORMAL SOCKET

FINDING:E
1. All normal sockets are missing the grounding wire.
2. RCD has not been installed to the CU.
3. Engineers office the circuit sockets exceed the circuit
rating and due heavy duty printer and water boiler use
which might cause that it draws high current which the circuit
cannot withstand due to its design limitation and can cause
overcurrent which can cause overheating of the conductor or
damage the equipment.

RECOMMENDATION:E 1) We have a dedicated

1.To protect human and electrical devices from short circuit and RCBO on the main panel so
lightning strikes an earthing wire shall be used to provide direct no need for RCD here again
due to redundancy 2)The
path for electrical current to the ground.
Automatic voltage switcher
2.All sockets are required to be protected by a 30mA RCD from shown above shall be
the CU or SDPB. Therefore, RCD shall be installed. installed as first point of
3.Engineers office the circuit sockets shall not exceed four contact before any device is
sockets for each branch circuit and each socket outlet shall be powered as a means of full
13A and the load shall evenly distributed to prevent proof device protection 3)
overcurrent. Earthing cabling with the
earth rod already installed is
very necessary and can be
achieved through the same
conduits the supply line has
come in with or due to the
already set up structure some
modifications that may not
be pleasing to the eye may be
done
CATEGORY: POWER SOCKET With proper cabling we can
reinstall the socket and check
FINDING: F
1.Corridor twin 3-pin socket malfunctioning has been observed
RECOMMENDATION: F
1.Twin socket at the corridor access shall be properly installed
and operated

CATEGORY:
SUB DISTRIBUTION PANEL BOARD
FINDING: G Part G recommendations
1.No sub distribution panel board or consumer unit has Not necessary with
been installed in the office building, only a 1-phase, 1 ammendment already done
at the main panel, meter
pole 10A CB is connected for the lighting and normal
unification can be done by
sockets to prevent any electric fault. the utility supplier
2.The lighting circuit and socket circuit are connected
together.
3.The principle office does not have CU only single
phase 2 pole 10A CB connected to both lighting, socket
and the split air conditioning unit is not coordinating
with the main CB
4. Two separate electricity meters are installed on the two
offices.
RECOMMENDATION: G
1.Sub distribution panel or CU shall be installed
with single phase 2 pole main circuit breaker along
with RCD and single phase 1 pole CB for each circuit.
2. All lighting and socket circuit shall be
branched separately and each circuit shall be
connected to its relevant CB on the CU.
3. We recommend to install one sub
distribution panel or CU for the office building
4. We recommend unifying the electric meter for the
office so that you can easily understand your energy
consumptions and the total electricity demand for
your office if the building owner does not have any
issue.

CATEGORY:
SPLIT AIR CONDITIONING UNIT
FINDING: H
1.The split air conditioning unit is not
coordinating with the CB and has its separate
20A CB
RECOMMENDATION: H This can be done with
1.To comply the safety standards and regulation, following the cabling route to
its recommended to coordinate the air conditioning CB determine its supply from
the 20A CB in main panel
with the CU through main breaker to avoid any
potential hazards and ensure safety and security.
CATEGORY:
LIGHTING
FINDING: I Will be determined by the
1. One lighting lamp in the principle office is not adjustments in the
functioning. recommendations
2. Three LED recessed lamps are not
functioning on the ENGINEERS
RECOMMENDATION: I office
1. All un operating luminaires shall be repaired and keep
the lux required working spaces

CATEGORY: Can be undertaken with

FIRE FIGHTING SYSTEM proper coding and regular
inspection of the fire
FINDING: I extinguisher
1.During the inspection, it has not been observed
any fire extinguishers available on the
office building
RECOMMENDATION: I
1. its strongly recommend that fire
extinguishers shall be installed and available near the
critical areas such as the main distribution panel
boards, and sub distribution
panel boards where they are visible and
accessible.

CATEGORY: Can be done post fixing the

FIRE ALARM AND SMOKE HEAT DETECTORS cabling and protection
situation
FINDING: J
1. Fire alarm, smoke and heat detectors was not installed
in the office building.
RECOMMENDATION: J
1. Fire alarm, smoke heat detector shall be installed
in the office building.

CATEGORY: Can be done post fixing the

EMERGENCY EXIT LIGHTING cabling and protection
situation
FINDING: K
1. Emergency exit lighting is not installed in the
office building.
RECOMMENDATION: K
1. Emergency exit lighting or signs shall be installed
or displayed in order to guide the staff
during electrical fire evacuation.
CATEGORY: An indipendent switch can
CEILING FAN be installed between the fan
and lighting supply to isolate
FINDING: L use of the fan from the lights
1. The ceiling fan is controlled by lighting switch
control.
RECOMMENDATION: L
1. its recommended the Ceiling fan shall be
controlled fan control switch.
5. CONCLUSION
Based on the electrical inspection and testing conducted by LEGEND experts at SEMA SURVEYORS’ office building, it was identified the lack of
earthing system throughout the office building which increasing the electrical faults and potential equipment damage. It is also worth to mention that
electrical testing for the voltages are within the allowable ranges. However, the branch circuits for the socket on the Engineers office are not evenly
distributed for the served loads. Addressing the findings and rectifying the recommendations mentioned on the above will not only enhance the safety and
functionality of the electrical system but also ensure the well-being of the office staff and protect electrical equipment from the damages. Regular follow-up
inspection of at least every 6 months is recommended to maintain the electrical installations at optimal levels of safety.
Regarding the total peak load of the office building was estimated 15.54 kW including 20% for future load increase. And also the critical peak load was
estimated 5.33 kW. Therefore, UPS backup with capacity of 5.5 kW, during power interruption will be recommended only for these critical loads during
power interruption.
Appendix01: Testing and Measurements

A1.Electrical Main Distribution Panel Board A2. Electrical Main Distribution PB A3. Electrical Main Distribution

A4. Socket circuit testing A5. Socket circuit inspection A6. Socket circuit testing
Appendix02: Load Estimation
Sr.# Appliances Qty Power-Rating (W) Total Watts
1 Refrigerator 1 500 500
2 Disk top screen 3 24.7 74.1
3 Hp pro tower 3 552 1656
4 LCD screen 2 150 300
5 LG disk top 4 24.7 98.8
6 Fan 6 40 240
7 Water Dispenser 3 660 1980
8 Air condition split unit 1 2500 2500
9 Printer 1 1 288 288
10 Hp Printer 2 1 720 720
11 Hp Printer 3 1 348 348
12 Printer 4 1 600 600
13 Disk top principle 1 46 46
14 CPU 4 700 700
15 Lighting - 800 800
12950