000			02133cam a2200337 a 4500
003			EG-GiCUC
005			20250223032312.0
008			190612s2018 ua dho f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.13.12.M.Sc.2018.Ho.R
100	0		_aHoda Saber Hafez
245	1	0	_aRisk assessment of grounding system in electrical substation case study : _bAbo zaable substation 66 kv / _cHoda Saber Hafez ; Supervised Fouad Khalaf , Ahdab Elmorshedy
246	1	5	_aتحد{u٠٦أأ}د و تق{u٠٦أأ}{u٠٦أأ}م المخاطر لنظام التأر{u٠٦أأ}ض فى محطات المحولات بالشبكة الكھرب{u٠٦أأ}ة
260			_aCairo : _bHoda Saber Hafez , _c2018
300			_a78 P. : _bcharts , facsimiles , photographs ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Metalurgical Engineering (Risk Engineering)
520			_aGrounding system in electrical substation is a main protection in power plant system that protects workers and equipment against lightning, overvoltage, switching and safe the operation continuity. So the design of the grounding system must be according to standard code IEEE 80 and it must be maintenance, test periodically. This research introduces risk assessment on the hazard that causes failure of grounding system. Preliminary risk assessment model (PRA) is used to identify, determine and show risks in grounding system to indicate the suitable control case. The 5-Step Process of Risk Management is also used to identify system hazards, before conducting the analysis of probabilities, severities and rank risk. So PHA gives preventive and protective values for unacceptable risks
530			_aIssued also as CD
653		4	_aGrounding system
653		4	_aPRA model
653		4	_aRisk assessment
700	0		_aAhdab Elmorshedy , _eSupervisor
700	0		_aFouad Khalaf , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aAsmaa _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c72338 _d72338