Site Safe Electrical Safety on Construction Sites

Question 1

What does RCD stand for in the context of electrical safety on NZ construction sites?

Accepted Answer

Residual Current Device

Answer

Rated Circuit Disconnector

Answer

Regulated Current Detector

Answer

Relay Circuit Device

Question 2

How often must portable electrical tools be tested and tagged on a NZ construction site?

Accepted Answer

Every 3 months

Answer

Every 12 months

Answer

Every 6 months

Answer

Every month

Question 3

What is the minimum safe approach distance for non-electrical workers near overhead power lines up to 33kV in NZ?

Accepted Answer

4 metres

Answer

1 metre

Answer

2 metres

Answer

6 metres

Question 4

Who is legally permitted to perform electrical work on a NZ construction site?

Accepted Answer

A Licensed Electrical Worker (LEW)

Answer

Any trained site worker

Answer

The site foreman

Answer

Any worker supervised by a manager

Question 5

What should you do immediately if you accidentally strike an underground cable while excavating?

Accepted Answer

Stop work, move everyone away, and call the network operator

Answer

Continue working carefully around it

Answer

Cover the damage with electrical tape and report later

Answer

Check if power is still on before deciding next steps

Question 6

What service must you contact before starting any excavation work to locate underground cables and services in NZ?

Accepted Answer

Dial Before You Dig (0800 248 344)

Answer

WorkSafe NZ (0800 030 040)

Answer

Your local council building department

Answer

The site's principal contractor only

Question 7

What is the primary purpose of using an RCD on a NZ construction site?

Accepted Answer

To detect earth faults and disconnect power within milliseconds

Answer

To regulate voltage supply to equipment

Answer

To prevent circuit overloading

Answer

To test equipment compliance before use