TCVN 6780-4-2009
Safety requirements on underground mine of ore and non-ore exploitation.Part 4: Power supply

Standard No.

TCVN 6780-4-2009

Release Date

2009

Published By

VN-TCVN

Latest

TCVN 6780-4-2009

TCVN 6780-4-2009 history

• 2009 TCVN 6780-4-2009 Safety requirements on underground mine of ore and non-ore exploitation.Part 4: Power supply