Electrical Safety

Describe electricity

A potential that results in the movement of electrons in a conductor.

How much weight should an anchorage device be able to handle?

Anchorage device and pints are the interface between the PFAS and the structure to which they are attached. This point must hold 5000 lbs.

Can fall protection equipment that has been involved in a fall still be used?

No. All fall protection equipment that is involved in a fall must be taken out of service and destroyed.

What are the general guidelines used in identifying a confined space?

Not intended for continuous occupancy Has poor ventilation Has potential for entrapment/engulfment Potential for a dangerous atmosphere Has limited entry and exit

CFR part 1910 covers the ____

OSHA STANDARDS FOR GENERAL INDUSTRY

CFR part 1926 covers the ___

OSHA Standards for the construction industry

What procedure is used to rescue a person involve in an accident where fall protection is used?

Rescues must be accomplished from below using ladders, lifts, and /or scaffolds. Never pull anyone up by their fall protection.

All conductors, buses, and connections should be considered ____ until proven otherwise.

energized

A life threatening condition of the heart in which the muscle fibers contract irregularly is called____

fibrillation

If a person's heart begins to fibrillate due to an electrical shock, the solution is to___

have a qualified person use emergency defibrillation equipment

As it is erected, each part of a scaffolding shall be carefully ____

leveled

What is the proper distance from the feet of a straight ladder to the wall?

one fourth the working height of the ladder

The best way to protect yourself from solvent hazards is to___

read and follow all instructions on the product's MSDS

An important use of a hot stick is to ___

replace fuses

Asbestos was banned in____; therefore, you must assume that any facility constructed before___ has asbestos in it.

1978; 1980

Class 00 rubber gloves are used when working with voltages less than____

500 volts

A PFAS (Personal Fall Arrest System) anchorage point for a 6 foot lanyard must be able to hold____

5000 lbs

Fall protection must be used when employees are on a walking or working surface that is ____ or more above a lower level and has an unprotected edge or side.

6 feet

What is the standard length?

6 feet

What are the minimum and maximum distances (in inches) that a scaffold plank can extend beyond its end support?

6; 12 inches

A double-insulated power tool

Can safely be used in place of a grounded tool.

What are the six classes of rubber protective equipment?

Class 00 Beige 500 V Class 0 Red 1000v Class 1 White 7500v Class 2 Yellow 17000 v Class 3 Green 26500 v Class 4 Orange 36000 v

The most life threatening hazards on a construction site are:

Falls from high places crushing hazard by falling materials or equipment Electrical shock and arc related burns being struck by flying objects, moving equipment/vehicles and construction equipment.

A ____ will de-energize a circuit or a portion of it if the current to ground exceeds some predetermined value.

GFCI (Ground Fault Circuit Interrupter)

Before determining the proper procedure for confined space entry, a____must be performed.

Hazard review

In a Lockout/tagout procedure

Lockout/tagout devices are installed by every authorized employee involved in the work

What is the primary cause of death from electrical shock?

When the heart's rhythm is overcome by an electrical current.