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Home / Technical Articles / Qatar General Electricity and Water Corporation – Recommendations for Safety Clearance
Qatar General Electricity and Water Corporation - Recommendations for Safety Clearance
Qatar General Electricity and Water Corporation (Kahramaa) has awarded Leighton Contracting Qatar, a subsidiary of Australia’s HLG, the contract to carry out the work at Al Duhail and Umm Qarn reservoir and pumping stations. Qatar will build nine six million gallon reservoirs and one 25 million gallon reservoir. (photo from bigprojectme.com)

Minimum Safety Clearance of Pipelines from Electrical Tower

Service Vertical Clearance (Min)
Water Line (to cross below EHV cable level) 0.5 Meter
Sewerage Mains (to cross below EHV cable level) 1.0 Meter
Drainage Mains (to cross below EHV cable level) 0.5 Meter
Gas pipes 0.6 Meter
Telephone lines 0.5 Meter
LV / 11kV cables 0.5 Meter

Safety Clearance for Excavation of Land

Voltage kV Min. Distance
380/220V 0.5 Meter
20KV 2 Meter
63KV 7 Meter
132KV 10 Meter
230KV and above 20 Meter

Distance between underground power cables to wall of gas pipelines in parallel routes

Voltage kV Min. Horizontal Distance Min. Vertical Distance
380/220V 1 Meter 0.5 Meter
20KV 2 Meter 1 Meter
63KV 3 Meter 1.5 Meter

(B) Outside of Towns

Distance between Tower’s foundation to Pipeline in parallel and intersections

Voltage KV Min. Distance in Parallel Route
(Up to 5 Km)
Min. Distance in Parallel Route
(Above 5 Km)
20KV 20 Meter 30 Meter
63KV 30 Meter 40 Meter
132KV 40 Meter 50 Meter
230KV 50 Meter 60 Meter
400KV 60 Meter 60 Meter

Distance between overhead lines to gas pipelines at intersections

Voltage KV Min. Distance
20KV 8 Meter
63KV 9 Meter
132KV 10 Meter
230KV 11 Meter
400KV 12 Meter

Distance between Tower’s foundations to gas pipelines at intersections

 Voltage KV Min. Distance
20KV 20 Meter
63KV and higher 30 Meter

Right Of Way (R.O.W) From Roads

Highway Distance
High Way: (38 meter from one side of Central Line of Highway) 76 Meter
First Class State Road=(22.5 meter from one side of Central Line of Highway) 45 Meter
Second Class State Road=(17.5 meter from one side of Central Line of Highway) 35 Meter
Third Class State Road =(12.5 meter from one side of Central Line of Highway) 25 Meter
Forth Class State Road=(7.5 meter from one side of Central Line of Highway) 15 Meter

General Electrical Safety Clearance

Voltage KV Description Distance
Up to 11 KV At points where the lines cross roads or railways Min 6 Meter Height
Up to 11 KV Parallel to the roads Min 5.5 Meter Height
Up to 11 KV Lines cross totally desert regions where no traffic is possible Min 5.5 Meter Height
20 KV to 66 KV All Location Min 6 Meter Height
Up to 11 KV Conductor Joint No joint shall be closer than 3 meters to a point of support
33 KV & 66 KV Conductor Joint No tension joints shall be used unless specially approved.

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Jignesh Parmar

Jignesh Parmar has completed M.Tech (Power System Control), B.E (Electrical). He is member of Institution of Engineers (MIE), India. He has more than 13 years experience in transmission & distribution-energy theft detection and maintenance electrical projects.

6 Comments


  1. SHYAM KOTLA
    Nov 14, 2018

    Dear sir

    Natural gas pipeline can be laid below the 66 KVA lines and what is the minimum distance should be maintained between tower footing and gas pipeline. what Precautionery measures to protect the pipelines laid near high tension power lines .

    Regards

    S.P.Kotla


  2. SHYAM KOTLA
    Nov 14, 2018

    Dear sir

    Please clarify natural gas pipeline can be laid below the 66 KVA lines and what is the minimum distance should be maintained between tower footing and gas pipeline. Precautionery measures to protect the pipelines laid near high tension power lines .

    Regards

    S.P.Kotla


  3. rachel
    Mar 28, 2015

    sir what is the distance between overhead line and traction system upto voltage of 33 KV?


  4. Mohamed
    Feb 23, 2015

    What is the reference for the attached information ? did you get it from KAHRAMAA standards ?? can send to me the reference of these information ,
    I tried to use it against the contractor , but the contractor told me that what is your reference !!!


  5. Saurabh Dubey
    Sep 25, 2012

    Hello sir
    I want to know about improving power factor.Suppose that we have a DG of 1000kw and the power factor is .7.If we want to change our power factor to .9 Then with help of capacitor bank how we can do it.Which How we find that which Capacitor bank we should use.

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