ELECTRICAL SAFETY

WHY DOES AN HVACR TECHNICIAN NEED TO THOROUGHLY UNDERSTAND ELECTRICAL HAZARDS?

• TO PROTECT THEMSELVES FROM INJURY

• TO PROTECT PROPERTY FROM DAMAGE

• TO PROTECT OTHERS FROM INJURY

• ALL THE ABOVE

THE _______STANDARD COVERS ELECTRICAL INSTALLATIONS.

• NFPA 70E

• NFPA 70

• NFPA 70B

• NFPA 54

LOCAL CODES SUPERSEDE THE NATIONAL ELECTRICAL CODE.

• TRUE

• FALSE

_________ CERTIFIES THAT EQUIPMENT/COMPONENT STANDARDS ARE MET.

• UL

• OSHA

• ASHRAE

• NEC

LOTO IS ONLY APPLIED TO INDUSTRIAL ELECTRICAL WORK.

• TRUE

• FALSE

POWER SHOULD BE SHUT OFF WHEN WORKING ON ELECTRICAL CIRCUITS AND EQUIPMENT. WHAT IS THE NEXT STEP?

• PERFORM LOTO

• CALL THE POWER COMPANY

• TELL SOMEONE NOT TO TURN POWER BACK ON

• SEND THE PROPERTY OWNER A TEXT

DURING AN ELECTRIC SHOCK, __________.

• CONTACT WITH AN ELECTRICAL SOURCE CAUSES A MAGNETIC FIELD THAT CAN CAUSE HARM

• THE HET FROM THE ELECTRICITY CONTACTING PASSES THROUGH THE BODY CAUSING BURNS

• THE BODY BECOMES A CONDUCTOR FOR CURRENT FLOW

• ELECTRIC CURRENT IS TOO WEAK TO DO HARM TO A PERSON

THE SEVERITY OF ELECTRIC SHOCK INJURY DEPENDS ON THE PATH TAKEN, DURATION, AMOUNT OF CURRENT, AND THE PERSONS HEALTH.

• TRUE

• FALSE

THE BEST WAY TO SAVE A PERSON WHILE BEING SHOCKED IS TO GRAB AND PULL THE PERSON AWAY FROM THE ELECTRIC SOURCE.

• TRUE

• FALSE

NEVER ASSUME THAT A TOOLS PLASTIC HANDLE WILL PROTECT AGAINST SHOCK. WHAT DETERMINES A MATERIALS INSULATING PROPERTY.

• THICKNESS OF MATERIAL

• TYPE OF MATERIAL

• COLOR OF MATERIAL

• DIELECTRIC STRENGTH