769 Incidents Involving Electricity

Question 1

Low voltage is:

Answer 1

Under 1000v ac

Under 1500v dc

Question 2

Electricity gloves rated to:

Answer 2

3300v

Question 3

How long does a sub station have fire resistance and where would you find one in a building?

Answer 3

4 hours. Against an outside wall.

Question 4

When would crews be allowed to access ducting (under the pavement) at a smoke issuing?

Answer 4

When power has been confirmed isolated and residual current discharged by an AUTHORISED PERSON

Question 5

Minimum level of ppe when SULPHUR HEXAFLUORIDE (SF6) is present.

Answer 5

BA and full fire gear.

Question 6

What is the attendance time for an authorised person and when are they available.

Answer 6

2 hours. 24/7

Question 7

Incidents involving wind turbine standard cordon

Answer 7

300m diameter

Question 8

Finding a person laying on a transformer/switch or anywhere above ground. When is it ok to make a rescue?

Answer 8

When the authorised person of the electrical company states it’s safe to do so

Question 9

Define an authorised person.

Answer 9

A person who is competent to isolate, divert, make safe/de-energise own equipments installation

Question 10

Define responsible person

Answer 10

A person who has control of the premises of their representative

Question 11

Overhead cables working distance WITH HANDHELD HOSE

Answer 11

20metres

Question 12

Overhead cables working distance with GROUND MONITOR

Answer 12

30metres

Question 13

Overhead cables working distance WITHOUT HOSE but ladders are ok

Answer 13

10metres

Question 14

Overhead cables TRAINING distance

Answer 14

20metres

Question 15

In the vicinity of overhead lines, substations, other electrical equipment- RESCUE MIN SAFE DISTANCE

Answer 15

5metres