Pursuant to Article 116 of the Energy Law

3.3.2.7. Short-circuit currents  
3.3.2.7.1. Short-circuit currents in the facilities of the transmission system users are 
calculated during the preparation of the Transmission System Development Plan if the 
potential major changes are expected due to anticipated changes in generation and 
transmission system, i.e. at the request of the transmission system users. Otherwise, JSC EMS 
is obligated to check short circuit currents in each facility of the transmission system at least 
once every five years. 
3.3.2.7.2. If JSC EMS assesses that the value of prospective short circuit currents (due to the 
development of the transmission system) may jeopardise the existing installed equipment in 
the transmission facilities and facilities of the transmission system users, JSC EMS shall take 
measures in the transmission facilities and agree with the users of the transmission grid about 
measures to be taken in their facilities. These measures primarily include preparation of plans 
for replacement of affected equipment, determination of the new connection status in the 
transmission grid and facilities of transmission system users, and monitoring short circuit 
currents in real time. 
3.4.
 
CONTENT
 
OF
 
TRANSMISSION
 
SYSTEM
 
INVESTMENT
 
PLAN 
3.4.1. Every year, JSC EMS creates Transmission system investment plan, for three year 
period, harmonized with distribution systems investment plan. 
3.4.2. Transmission system investment plan particularly contains: 
- name, type and kind of facility together with investment code and short 
description of the planned activities;
- value of equipment, services and works; 
- estimated value of each investment in the next three years;
- schedule of financial implementation of the investment plan; 
- financial resources; 
- implementation of the plan of investments in progress.

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