Applied Sciences

Journal Browser

► Journal Browser

Electrical Safety Engineering of Complex Systems

Special Issue Editors
Special Issue Information
Keywords
Published Papers

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (10 December 2021) | Viewed by 14555

Share This Special Issue

Special Issue Information

Electrical safety engineering is of crucial importance for industrial, commercial, and residential electrical systems, since it conveys a beneficial safety-by-design approach. A crucial task for Safety Engineers is devising working procedures, which include indications on the proper use of collective safeguards and personal protective equipment, to preserve the health and life of workers.

The proper design of effective grounding and bonding systems provides safety for persons, reliable electrical services, and reduces the effects of electrical accidents for workers. In addition, the proper design of the whole electrical installation can preserve persons and buildings from the risk of fire or panic during emergency situations. Electrical engineers must design tests and measurements to verify the electrical safety to be performed both before and during the life of buildings, to prevent the electrical systems from malfunctioning and causing harms to persons.

In light of the above considerations, this Special Issue of Applied Sciences provides a forum for researchers and practitioners to discuss the proper design, as well as safety-related issues, of electrical installations and, in particular, of grounding and bonding systems. The aim and scope of this Special Issue includes, but is not limited to, the following topics:

Analysis and design of grounding grids, also under lightning conditions
Pertinent case studies
Computer models and methods for determination of design parameters of grounding grids
Electrical safety-by-design
Analysis of bonding systems
Quantification and measurement techniques of electrical safety parameters
Electrical safety in the workplace
Electrical safety in residential
Work practices
Hazard mitigation and electrical safety management
Forensic analysis of electrical accidents and electrical fires
Use of collective safeguards and personal protective clothing and equipment
Risk of electromagnetic field exposure
Test and measurements on power systems

Prof. Massimo Mitolo
Prof. Gaetano Zizzo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

Bonding
Electrical accidents
Electrical engineering
Electrical fires
Electrical safety
Grounding
Measurements
Power systems
Safety-by-design
Workplace

Published Papers (2 papers)

Download All Papers

Research

Jump to: Review

16 pages, 2546 KiB

Open AccessArticle

Safety Issues Referred to Induced Sheath Voltages in High-Voltage Power Cables—Case Study

by Stanislaw Czapp and Krzysztof Dobrzynski

Appl. Sci. 2020, 10(19), 6706; https://doi.org/10.3390/app10196706 - 25 Sep 2020

Cited by 2 | Viewed by 4396

Abstract

Load currents and short-circuit currents in high-voltage power cable lines are sources of the induced voltages in the power cables’ concentric metallic sheaths. When power cables operate with single-point bonding, which is the simplest bonding arrangement, these induced voltages may introduce an electric shock hazard or may lead to damage of the cables’ outer non-metallic sheaths at the unearthed end of the power cable line. To avoid these aforementioned hazards, both-ends bonding of metallic sheaths is implemented but, unfortunately, it leads to increased power losses in the power cable line, due to the currents circulating through the sheaths. A remedy for the circulating currents is cross bonding—the most advanced bonding solution. Each solution has advantages and disadvantages. In practice, the decision referred to its selection should be preceded by a wide analysis. This paper presents a case study of the induced sheath voltages in a specific 110 kV power cable line. This power cable line is a specific one, due to the relatively low level of transferred power, much lower than the one resulting from the current-carrying capacity of the cables. In such a line, the induced voltages in normal operating conditions are on a very low level. Thus, no electric shock hazard exists and for this reason, the simplest arrangement—single-point bonding—was initially recommended at the project stage. However, a more advanced computer-based investigation has shown that in the case of the short-circuit conditions, induced voltages for this arrangement are at an unacceptably high level and risk of the outer non-metallic sheaths damage occurs. Moreover, the induced voltages during short circuits are unacceptable in some sections of the cable line even for both-ends bonding and cross bonding. The computer simulations enable to propose a simple practical solution for limiting these voltages. Recommended configurations of this power cable line—from the point of view of the induced sheath voltages and power losses—are indicated. Full article

(This article belongs to the Special Issue Electrical Safety Engineering of Complex Systems)

► Show Figures

Figure 1

Review

Jump to: Research

20 pages, 2082 KiB

Open AccessReview

A Review of Health Assessment Techniques for Distribution Transformers in Smart Distribution Grids

by Quynh T. Tran, Kevin Davies, Leon Roose, Puthawat Wiriyakitikun, Jaktupong Janjampop, Eleonora Riva Sanseverino and Gaetano Zizzo

Appl. Sci. 2020, 10(22), 8115; https://doi.org/10.3390/app10228115 - 16 Nov 2020

Cited by 33 | Viewed by 9465

Abstract

Due to the large number of distribution transformers in the distribution grid, the status of distribution transformers plays an important role in ensuring the safe and reliable operation of the these grids. To evaluate the distribution transformer health, many assessment techniques have been studied and developed. These tools will support the transformer operators in predicting the status of the distribution transformer and responding effectively. This paper will review the literature in the area, analyze the latest techniques as well as highlight the advantages and disadvantages of current methodologies. Full article

(This article belongs to the Special Issue Electrical Safety Engineering of Complex Systems)

► Show Figures