UFC 3-560-01
6 December 2006
Including change 1, 7 December 2006
Modifications and Clarifications to
Voltage
Task
NFPA 70E Table 130.7(C)9(a)
Operating (open/close) SF6, vacuum and air pad-mounted
> 600 V
Category 2*
switches (dead front).
Operating (open/close) SF6, vacuum and air pad-mounted
> 600 V
Category 2*
switches (live front), (> 4 ft (1.25 m).
Operating (open/close) oil switches.
Must remotely operate from >20 ft (6.1
> 600 V
m) and comply with Paragraph 4-4.1.2.
Oil fused cutouts.
Must deenergize upstream before
> 600 V
operating cutout.
Operating (open/close) oil immersed loadbreak 3-phase
gang operated or single-phase pad mount transformer
> 600 V
Category 2*
switches at hot stick distance and removal of load-break
elbows from various equipment (> 4 ft (1.25 m)).
Phasing circuits from grade (ground) at hot stick distance
> 600 V
Category 2*
(> 6 ft (2 m)).
Overhead series lighting at hot stick distance (> 6 ft (2 m)).
Category 2*
> 600 V
Fusing:
> 600 V
Category 4
Operation of fused cutouts (or replacing fuses in fused
cutouts) mounted inside a vault or building.
Fusing:
Category 2*
Replacing fuses in pad mounted transformers or pad
> 600 V
mounted switches at hot stick distance (> 4 ft (1.25 m)).
Must deenergize transformer before
replacing fuses.
Disconnecting /shorting/and grounding capacitor banks.
> 600 V
Category 4
Ship to shore voltage testing, testing shore power
Category 4
< 600 V
receptacle cover interlock switches and shore power
receptacle interlock switches.
4-13
Previous Page
