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Ampacity of underground distribution electrical power cables / (Record no. 50063)

MARC details
000 -LEADER
fixed length control field 02671cam a2200325 a 4500
003 - CONTROL NUMBER IDENTIFIER
control field EG-GiCUC
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250223031202.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 150326s2014 ua d f m 000 0 eng d
040 ## - CATALOGING SOURCE
Original cataloging agency EG-GiCUC
Language of cataloging eng
Transcribing agency EG-GiCUC
041 0# - LANGUAGE CODE
Language code of text/sound track or separate title eng
049 ## - LOCAL HOLDINGS (OCLC)
Holding library Deposite
097 ## - Thesis Degree
Thesis Level M.Sc
099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number Cai01.13.07.M.Sc.2014.No.A
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name Noha Mohammed Saber Amin
245 10 - TITLE STATEMENT
Title Ampacity of underground distribution electrical power cables /
Statement of responsibility, etc. Noha Mohammed Saber Amin ; Supervised Osama Elsayed Gouda
246 15 - VARYING FORM OF TITLE
Title proper/short title السعة التيارية للكابالات األارضية لتوزيع القوى الكهربائية
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. Cairo :
Name of publisher, distributor, etc. Noha Mohammed Saber Amin ,
Date of publication, distribution, etc. 2014
300 ## - PHYSICAL DESCRIPTION
Extent 145 P. :
Other physical details charts ;
Dimensions 30cm
502 ## - DISSERTATION NOTE
Dissertation note Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Electrical Power and Machine
520 ## - SUMMARY, ETC.
Summary, etc. The maximum current carrying capacity of the power cables which buried in the ground is affected by many factors such as moisture content, soil thermal resistivity of surrounding soil, ambient temperature, depth of laying of cable and the formation of dry zone around the power and distribution cables, which lead to increase of the thermal resistivity and decrease in the maximum current carrying capacity. Under loading condition, heat generated from the cables raises the temperature of the surrounding soils and leads to thermal instability then formation of the dry zone. The dry zone formation affects the cables current carrying capacity and the cables insulation such as decrease in the cable life-time. In this thesis 12 types of soils are tested (sand, lime, 3 mixtures of sand and lime, clay, 3 mixtures of sand and clay, mixtures of sand & lime & clay, pure peat-moss and vermiculite materials). It is noticed that some types of soils formed the dry zone faster than others. The aim of this thesis is to determine the best type of the soil that can be used as backfill-material to reduce the dry zone effect on the cables. Also calculate the de-rating factor for the formation of dry zone for different types of soils. The velocity of dry band formation around different types of distribution cables and its radius are calculated by the aid of experimental results that obtained from the tests carried out on different soil types which are mentioned before
530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE
Additional physical form available note Issued also as CD
653 #4 - INDEX TERM--UNCONTROLLED
Uncontrolled term Cable ampacity
653 #4 - INDEX TERM--UNCONTROLLED
Uncontrolled term De-rating factor
653 #4 - INDEX TERM--UNCONTROLLED
Uncontrolled term Dry zone formation around buried cables
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Osama Elsayed Gouda ,
Relator term
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a>
905 ## - LOCAL DATA ELEMENT E, LDE (RLIN)
Cataloger Aml
Reviser Cataloger
905 ## - LOCAL DATA ELEMENT E, LDE (RLIN)
Cataloger Nazla
Reviser Revisor
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Dewey Decimal Classification
Koha item type Thesis
Holdings
Source of classification or shelving scheme Not for loan Home library Current library Date acquired Full call number Barcode Date last seen Koha item type Copy number
Dewey Decimal Classification   المكتبة المركزبة الجديدة - جامعة القاهرة قاعة الرسائل الجامعية - الدور الاول 11.02.2024 Cai01.13.07.M.Sc.2014.No.A 01010110064834000 22.09.2023 Thesis  
Dewey Decimal Classification   المكتبة المركزبة الجديدة - جامعة القاهرة مخـــزن الرســائل الجـــامعية - البدروم 11.02.2024 Cai01.13.07.M.Sc.2014.No.A 01020110064834000 22.09.2023 CD - Rom 64834.CD