Student safety 2011 5th edition - Pt 3, Pg 14-19 Flashcards
What do the 3 hard hat classes do?
Pg 14
The 3 classes are based on the protection level they have from electrical hazards.
- Class G (General) hard hats are for 2,200 volts.
- Class E (Electrical) hard hats are for 20,000 volts.
- Class C (Conductive) hard hats have no electrical protection.
What can a dust mask/respirator protect us from?
Pg 15
Dust mask/respirators help control dust and fumes in construction sites that can damage a respiratory tract.
Some industries ask employees to do what for respirators to make a good seal?
Pg 15
Employees must be clean-shaven to wear respirators.
What are voltage-rated gloves?
Pg 15
Voltage-rated gloves are thick, non-conductive for work near live equipment.
When must be voltage-rated gloves be retested?
Pg 15
The gloves are rated at max voltage and must be retested each 90 days.
What to do with voltage-rated gloves if finished using?
Pg 15
They must be rolled from the open end to be inflated.
What are voltage-rated gloves covered with?
Pg 15
Voltage-rated gloves are cpvered with leather canvas gloves called protectors.
What must safety footwear have on its soles?
Pg 15
Its stoles must have a plate that stop sharp objects from penetrating.
What are safety footwear that stop sharp objects identified with?
Pg 15
Safety footwear stopping sharp objects have CSA green triangle.
What are safety footwear that stop shocks identified with?
Pg 15
Safety footwear that stop shocks have a white triangle.
How many levels of arc flash protective clothing does the NFPA standard referenced by Canadian Electrical Codes defines?
Pg 16
6 levels of arc flash protective clothing from -1 to 4
What do levels of arc flash protective clothing correspond to?
Pg 16
to higher exposure of heat level
