Document :

ITU-T�SG05� (Study Period 2009)� Contribution� 399

Title :

Proposal of the collaboration work with IEC 37B regarding the standardization of Lightning isolation transformers

Date :

2012-03-28

Source :

Nippon Telegraph and Telephone Corporation (NTT)

AI/Question :

Q13/5, Q4/5

Meeting :

2012-04-11

Access :

Restricted to TIES users�[ITU-T]