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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

ServiceVertical 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 pipes0.6 Meter
Telephone lines0.5 Meter
LV / 11kV cables0.5 Meter

Safety Clearance for Excavation of Land

Voltage kVMin. Distance
380/220V0.5 Meter
20KV2 Meter
63KV7 Meter
132KV10 Meter
230KV and above20 Meter

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

Voltage kVMin. Horizontal DistanceMin. Vertical Distance
380/220V1 Meter0.5 Meter
20KV2 Meter1 Meter
63KV3 Meter1.5 Meter

(B) Outside of Towns

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

Voltage KVMin. Distance in Parallel Route
(Up to 5 Km)
Min. Distance in Parallel Route
(Above 5 Km)
20KV20 Meter30 Meter
63KV30 Meter40 Meter
132KV40 Meter50 Meter
230KV50 Meter60 Meter
400KV60 Meter60 Meter

Distance between overhead lines to gas pipelines at intersections

Voltage KVMin. Distance
20KV8 Meter
63KV9 Meter
132KV10 Meter
230KV11 Meter
400KV12 Meter

Distance between Tower’s foundations to gas pipelines at intersections

 Voltage KVMin. Distance
20KV20 Meter
63KV and higher30 Meter

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

HighwayDistance
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 KVDescriptionDistance
Up to 11 KVAt points where the lines cross roads or railwaysMin 6 Meter Height
Up to 11 KVParallel to the roadsMin 5.5 Meter Height
Up to 11 KVLines cross totally desert regions where no traffic is possibleMin 5.5 Meter Height
20 KV to 66 KVAll LocationMin 6 Meter Height
Up to 11 KVConductor JointNo joint shall be closer than 3 meters to a point of support
33 KV & 66 KVConductor JointNo tension joints shall be used unless specially approved.

About Author //

author-pic

Jignesh Parmar

jiguparmar - Jignesh Parmar has completed M.Tech (Power System Control) ,B.E(Electrical). He is member of Institution of Engineers (MIE),India. Membership No:M-1473586.He has more than 13 years experience in Transmission -Distribution-Electrical Energy theft detection-Electrical Maintenance-Electrical Projects (Planning-Designing-Technical Review-coordination -Execution). He is Presently associate with one of the leading business group as a Deputy Manager at Ahmedabad,India. He has published numbers of Technical Articles in "Electrical Mirror", "Electrical India", "Lighting India", "Industrial Electrix"(Australian Power Publications) Magazines. He is Freelancer Programmer of Advance Excel and design useful Excel base Electrical Programs as per IS, NEC, IEC,IEEE codes. He is Technical Blogger and Familiar with English, Hindi, Gujarati, French languages. He wants to Share his experience & Knowledge and help technical enthusiasts to find suitable solutions and updating themselves on various Engineering Topics.

5 Comments


  1. rachel
    Mar 28, 2015

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


  2. 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 !!!

  3. […] Meter (3 Ft)150 V to 600 V0.914 Meter (3 Ft)1.07 Meter (3’6”)1.22 Meter (4 Ft)Go to Content ↑Clearance around an Indoor electrical panel (NES 110.26)Description of ClearanceDistance (min)Left to Right […]


  4. 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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