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BS HD 60364-8-1:2019

$215.11

Low-voltage electrical installations – Functional aspects. Energy efficiency

Published By Publication Date Number of Pages
BSI 2019 78
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This part of IEC 60364 provides additional requirements, measures and recommendations for the design, erection, operation and verification of all types of low voltage electrical installation including local production and storage of energy for optimizing the overall efficient use of electricity.

It introduces requirements, recommendations and methods for the design and the energy efficiency (EE) assessment of an electrical installation within the framework of an energy efficiency management approach in order to get the best permanent functionally equivalent service for the lowest electrical energy consumption and the most acceptable energy availability and economic balance.

These requirements, recommendations and methods apply, within the scope of IEC 60364 (all parts), for new installations and modification of existing installations.

This document is applicable to the electrical installation of a building or system and does not apply to products. The energy efficiency of products and their operational requirements are covered by the relevant product standards.

Where another standard provides specific requirements for a particular system or installation application (e.g. manufacturing system covered by ISO 20140 (all parts)), those requirements may supersede this document.

This document does not specifically address building automation systems.

This group energy efficiency publication is primarily intended to be used as an energy efficiency standard for the low voltage electrical installations mentioned in Clause 1, but is also intended to be used by technical committees in the preparation of standards, in accordance with the principles laid down in IEC Guide 119 and IEC Guide 118.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 CONTENTS
11 FOREWORD
13 INTRODUCTION
14 1 Scope
2 Normative references
15 3 Terms, definitions and abbreviated terms
3.1 General
16 3.2 Electrical energy management
17 3.3 Energy measurement
18 3.4 Sectors of activities
3.5 Abbreviated terms
19 4 General
4.1 Fundamental principles
4.1.1 Safety of the electrical installation
4.1.2 Availability of electrical energy and user decision
4.1.3 Design principles
20 4.2 Energy efficiency assessment for electrical installations
4.2.1 General
4.2.2 Action plan following an assessment according to Annex B
5 Sectors of activities
6 Design requirements and recommendations
6.1 General
21 6.2 Determination of load energy profile
6.3 Determination of the transformer and switchboard location with the barycentre method
6.4 HV/LV substation
6.4.1 General
6.4.2 Optimum number and location of HV/LV substations
22 6.4.3 Working point of the transformer
6.4.4 Efficiency of the transformer
6.5 Efficiency of local production and local storage
6.6 Losses in the wiring
6.6.1 Voltage drop
6.6.2 Cross-sectional areas of conductors
23 6.6.3 Power factor correction
6.6.4 Reduction of the effects of harmonic currents
7 Determination of the zones, usages and meshes
7.1 Determining the zones
24 7.2 Determining the usages within the identified zones
7.3 Demand response
7.4 Determining the meshes
7.4.1 General
25 7.4.2 Meshes
7.4.3 Criteria for considering meshes
26 7.5 Driving parameters
7.5.1 General
27 7.5.2 Occupancy
7.5.3 Operating time
7.5.4 Environmental conditions
7.5.5 Cost of electricity
7.6 Impacts on the design of an electrical installation
8 Energy efficiency and load management system
8.1 General
28 8.2 User specification
8.2.1 General
8.2.2 Requirements on the loads
8.2.3 Requirements on the supplies
Figure 1 – Energy efficiency and load management system overview
29 8.3 Inputs from loads, sensors and forecasts
8.3.1 General
Figures
30 Tables
Table 1 – Measurement applications
31 Figure 2 – Electrical distribution scheme
Table 2 – Overview of the needs for power metering and monitoring
33 8.3.2 Communication
Figure 3 – Example of measurement equipment selection in an installation
34 8.3.3 Data logging
8.3.4 Loads
36 8.3.5 Forecasts
8.4 Inputs from the supplies: energy availability and pricing
8.5 Monitoring the performance of the electrical installation
8.6 Management of loads through meshes
8.6.1 General
8.6.2 Electrical energy management system (EEMS)
37 8.7 Multi-supply source management: grid, local electricity production and storage
9 Maintenance and enhancement of the performance of the installation
9.1 Methodology
38 Figure 4 – Iterative process for electrical energy efficiency management
Table 3 – Process for electrical energy efficiency management and responsibilities
39 9.2 Installation life cycle methodology
9.3 Energy efficiency life cycle
9.3.1 General
9.3.2 Performance maintenance programme
40 9.3.3 Verification
9.4 Data management
9.5 Maintenance
10 Parameters for implementation of efficiency measures
10.1 General
10.2 Efficiency measures
10.2.1 Current-using-equipment
42 10.2.2 Electrical installation
43 10.2.3 Implementation of management systems
45 10.2.4 Local power supply
46 11 Energy efficiency actions
47 Annex A (informative) Determination of transformer and switchboard location using the barycentre method
A.1 Barycentre method
49 Figure A.1 – Example 1: floor plan of production plant with the planned loads and calculated barycentre
50 A.2 Total load barycentre
A.2.1 General
Figure A.2 – Example 2: barycentre calculated
51 A.2.2 Sub-distribution board locations
A.2.3 Iterative process
A.3 Method of average route length
Figure A.3 – Example of location of the barycentre in an industrial building
52 Table A.1 – Cable length for supply of DB
53 Figure A.4 – Example of location of the bary centre using the average route length method
54 Annex B (normative) Method to assess the energy efficiency of an electrical installation
B.1 General
B.2 Electrical installation efficiency classes
B.3 Determination of the electrical installation efficiency class
B.3.1 General
Figure B.1 – Level of efficiency of the electrical installation efficiency classes
55 B.3.2 Industrial, commercial buildings and infrastructures
Table B.1 – Electrical installation efficiency classes
56 Table B.2 – Energy efficiency measures
57 Table B.3 – Determination of energy consumption: coverage
Table B.4 – Main substation: consumption
58 Table B.5 – Main substation: location
Table B.6 – Voltage drop
59 Table B.7 – Efficiency of transformer
60 Table B.8 – Efficiency of fixed installed current using equipment
Table B.9 – Zones
61 Table B.10 – Usages
Table B.11 – Demand response: coverage
Table B.12 – Demand response: duration
62 Table B.13 – Meshes
63 Table B.14 – Measurement by usages
Table B.15 – Occupancy coverage
Table B.16 – Occupancy measurement
64 Table B.17 – Energy management system (EEMS)
Table B.18 – HVAC control
65 Table B.19 – Lighting control
Table B.20 – Performance maintenance process
Table B.21 – Frequency of the performance verification process
66 Table B.22 – Data management
Table B.23 – Working point of transformer
67 Table B.24 – Presence of continuous monitoring for large energy using systems
Table B.25 – Power factor
68 Table B.26 – THDU
Table B.27 – THDI
69 B.3.3 Residential
Table B.28 – Renewable energy
Table B.29 – Electrical energy storage
70 Table B.30 – Energy efficiency measures parameters
Table B.31 – Determination of energy consumption
71 Table B.32 – Zones
Table B.33 – Demand response coverage
72 Table B.34 – Meshes
Table B.35 – HVAC control
73 Table B.36 – Lighting control
Table B.37 – Measurement by usage
74 Table B.38 – Renewable energy
Table B.39 – Electrical energy storage
75 Annex C (informative) List of notes concerning certain countries
Table C.1 – Notes concerning certain countries
76 Bibliography
BS HD 60364-8-1:2019
$215.11