H ELECTRICITY
H02 GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02B BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
1/00 Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
H02B1/26 Casings; Parts thereof or accessories therefor
H02B1/30 Cabinet-type casings; Parts thereof or accessories therefor
H02B1/32 Mounting of devices therein
H02B1/36 with withdrawable units