| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 5<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Exposure to electric field <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Figures Figure 1 \u2013 Illustration of the phenomenon of currents induced by an electric field in a human body standing on the ground Figure 2 \u2013 Potential lines of the electric field generated by an energised wire in the absence of any objects (all distances in metres) <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 3 General procedure 3.1 Shape factor 3.2 Procedure <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4 Human body models 4.1 General 4.2 Surface area Figure 3 \u2013 A realistic body model <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4.3 Semi-spheroidal model Figure 4 \u2013 Scheme of the semi-spheroid simulating a human being standing on a zero potential plane Tables Table 1 \u2013 Data for reference man and reference woman <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Table 2 \u2013 Values of arcsin(e) \/ e for different values of L\/R <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.4 Axisymmetrical body model Figure 5 \u2013 Equivalent spheroid radius, R, versus height, L, and for different mass, M Figure 6 \u2013 The axisymmetrical body model for the reference man (left) and woman (right) <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5 Calculation of induced current 5.1 General 5.2 Semi-spheroid Figure 7 \u2013 Conductive spheroid exposed to electric field <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Figure 8 \u2013 Calculation of the shape factor for electric field KE for an spheroid exposed to an unperturbed electric field <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Figure 9 \u2013 Current density JS induced by an unperturbed electric field (1\u00a0kV\/m, 50\u00a0Hz) in a spheroid versus parameter L\/R (values in \u00b5A\/m\u00b2) <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Figure 10 \u2013 Dimensions and mesh of the semi-spheroid Figure 11 \u2013 Distortion of power frequency electric field lines close to the conductive semi-spheroid <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 5.3 Axisymmetrical models Table 3 \u2013 Derived data using spheroid model at 50 Hz <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Figure 12 \u2013 Calculated induced current density JA(h) in the body standing in a vertical 50\u00a0Hz electric field of 1\u00a0kV\/m <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Table 4 \u2013 Electric field EBR required to produce basic restrictions JBR in the neck at 50 Hz <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Figure 13 \u2013 Computation domain Figure 14 \u2013 Mesh of the man body model and distortion of power frequency electric field lines close to model <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Figure 15 \u2013 Distribution of potential lines and 50\u00a0Hz electric field magnitude (man model) Figure 16 \u2013 Computation of induced currents JA along a vertical axis, and distribution of induced currents in the man model at 50\u00a0Hz <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 17 \u2013 Mesh of the woman body model and distortion of power frequency electric field lines close to model <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Figure 18 \u2013 Distribution of potential lines and 50 Hz electric field magnitude (woman model) Figure 19 \u2013 Computation of induced currents JA along a vertical axis, and distribution of induced currents in the woman model at 50\u00a0Hz <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 5.4 Comparison of the analytical and numerical models 6 Influence of electrical parameters 6.1 General 6.2 Influence of permittivity Table 5 \u2013 Comparison of values of the shape factor for electric field KE and corresponding current densities for an unperturbed 50\u00a0Hz electric field of 1\u00a0kV\/m <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 6.3 Influence of conductivity 6.4 Non-homogeneous conductivity 7 Measurement of currents induced by electric fields 7.1 General 7.2 Current flowing to the ground <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Annex A (normative) Analytical solutions for a spheroid in a uniform electric field Figure\u00a0A.1 \u2013 Conductive spheroid exposed to electric field <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex B (normative) Human body axisymmetrical model <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Table B.1 \u2013 Measures from antropomorphic survey used to construct vertical dimensions of axisymmetrical model [56] Table B.2 \u2013 Measures from antropomorphic survey used to construct the radial dimensions of axisymmetrical model [56] <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Figure B.1 \u2013 Normalised axisymmetrical models. <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Table B.3 \u2013 Normalised model dimensions <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Table B.4 \u2013 Axisymmetric model dimensions for reference man and reference woman whose mass and height are defined by ICRP [38] and are given in Table 1 <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Annex C (informative) Child body model Table C.1 \u2013 Reference values provided by ICRP for male and female children Table C.2 \u2013 Dimensions of the reference children (in m except SBR in m\u00b2) <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Figure C.1 \u2013 Computation of induced currents JZ along a vertical axis, and distribution of induced currents in the 10 years reference child model Table C.3 \u2013 Results of analytical method for the reference children <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Annex D (informative) Example of use of this standard <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Table D.1 \u2013 Normalised dimensions of the women model <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Table D.2 \u2013 Calculation of the dimensions for a specific person <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Annex E (informative) Numerical calculation methods <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Figure E.1 \u2013 Spheroid model <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | Figure E.2 \u2013 Space potential model <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Figure E.3 \u2013 Example of charge simulation method using rings <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Figure E.4 \u2013 Superficial charges integral equation method, cutting of the body into N elements <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | Figure E.5 \u2013 Mesh of the body using finite element method <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Figure E.6 \u2013 Impedance method <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Exposure to electric or magnetic fields in the low and intermediate frequency range. Methods for calculating the current density and internal electric field induced in the human body – Exposure to electric fields. Analytical and 2D numerical models<\/b><\/p>\n |