Standards Development

Scope

This SRD provides design guideline for implementation of city service continuity specified in IEC63152 and includes city service cases for various target organizations (Municipality, Town developer, Building administrator, etc.). The city service cases to be included are not only for emergency use but also for normal time use.

Purpose

Organizations providing services must be able to develop and implement preparedness measures to maintain and restore required services in the event of a disaster.

Because many of the services depend on electricity, an electricity continuity plan (ECP) and an electricity continuity system (ECS) can help maintain and restore necessary services in power failure due to the event of various disasters. IEC 63152 is an international standard that describes the concept and minimum requirements of ECP and ECS based on BCP.

However, depending on the type, degree, and quality of services, there are various ways to respond to disasters, and ECP and ECS cannot be created in the same way.

This SRD is designed to serve as a guideline for the design of basic parts by showing the process and points to be noted in the preparation of ECP and ECS for power outages based on normal service.

It is assumed that ECP and ECS will be useful to urban developers, urban operators, public service providers, disaster managers and system integrators, and manufacturers of systems related equipment and facilities.

Why ECP and ECS are needed?

Services in cities are not just public services. There are a lot of services such as residential services, transportation services, medical services, manufacturing services, etc. These services are also composed of various services.

Electricity is a very important resource to provide these services. Physical damage may be unavoidable due to a disaster, but the resulting power failure may extend to areas not physically damaged. This often makes it impossible to maintain normal service.

During normal times, traffic signals display instructions regularly, and traffic center can control traffic signals based on traffic volume sensor information.

As shown in Figure 1, a power failure causes traffic jams in many places because traffic lights cannot display instructions. In that case, the traffic center will not be able to grasp the traffic jam situation and will not be able to give appropriate instructions to emergency vehicles. Of course, the distribution will be delayed due to the traffic jam. Also, if the signal display disappears, there may be many accidents.

It would be helpful to have a system (ECS) in place to back up the power supply to important traffic signals, traffic sensors, etc., and to plan (ECP) activities to minimize the adverse effects on traffic with the minimum necessary information in the event of a power failure.

In addition, it is necessary to use regular training and small power outages several times a year to check their effectiveness, and to familiarize yourself with ECP/ECS. Otherwise, ECP and ECS cannot be used effectively in the event of an unexpected blackout.

How to develop ECP/ECS using this SRD

With this in mind, this SRD shows as much as possible what should be considered when continuing service in the event of a power failure.  

First of all, a conceptual design is performed while clarifying the following points

• Assumption of disaster and level of damage to the city and to the organization

• All services provided in the organization in normal time

• Policy and intention what service and how much level of service to be secured at the time of disaster

Next, use case for establishing ECP and ECS are described using templates to match the conceptual design, and basic requirements are summarized in the description as basic design.

Finally, in the detailed design, the basic design is described in detail according to the disaster response time table, then the ECP document is prepared and the ECS is designed.