Free E2 Health Care Facilities Questions and Answers 1 — Questions and Answers
Question 1: In a general care area of a health care facility, what is the minimum number of receptacles required at each patient bed location?
- Four
- Six
- Eight (Correct answer)
- Ten
Correct answer: Eight
According to NEC 517.18(B), each patient bed location in a general care area must be supplied by at least two branch circuits, and a minimum of eight receptacles must be provided. These receptacles can be single, duplex, or a combination.
Question 2: The Essential Electrical System (EES) for a hospital is composed of which three separate branches?
- Emergency, Standby, and Optional
- Life Safety, Critical, and Equipment (Correct answer)
- Patient Care, General, and Critical
- Normal, Alternate, and Isolated
Correct answer: Life Safety, Critical, and Equipment
NEC 517.31 specifies that the Essential Electrical System for hospitals shall be comprised of three separate branches: the life safety, critical, and equipment branches. Each branch serves distinct loads crucial for the safety of patients and staff during a power outage.
Question 3: In patient care vicinities, receptacles and fixed electrical equipment are required to be grounded by what means?
- The metal raceway only
- A flexible metal conduit without a bonding jumper
- An insulated copper equipment grounding conductor (Correct answer)
- A bare aluminum conductor
Correct answer: An insulated copper equipment grounding conductor
NEC 517.13 requires that in patient care vicinities, the grounding terminals of all receptacles and all non-current-carrying conductive surfaces of fixed electrical equipment be grounded by an insulated copper equipment grounding conductor. This conductor must be sized according to Table 250.122 and installed in a metal raceway.
Question 4: An isolated power system is required to be used in which type of location within a health care facility?
- General care areas
- Critical care areas, unless they are wet procedure locations
- Wet procedure locations (Correct answer)
- Administrative offices
Correct answer: Wet procedure locations
NEC 517.160(A)(1) mandates the use of isolated power systems for circuits serving wet procedure locations. This is a critical safety measure to minimize the risk of electric shock to patients and staff in an environment where liquids are commonly present.
Question 5: What is a key installation requirement for the wiring of the life safety and critical branches of the Essential Electrical System?
- They must be installed in non-metallic conduit only.
- They must be kept entirely independent and separate from all other wiring. (Correct answer)
- They can be installed in the same raceway as the equipment branch.
- They must be color-coded with yellow insulation.
Correct answer: They must be kept entirely independent and separate from all other wiring.
NEC 517.31(C)(3) requires that the life safety and critical branch circuits be kept entirely independent of all other wiring and equipment. They must not enter the same raceways, boxes, or cabinets with other wiring to ensure their integrity during an emergency.
Question 6: The 'Patient Care Vicinity' is defined as a space extending how far around the patient bed and how high above the floor?
- 5 ft horizontally and 7 ft vertically
- 6 ft horizontally and 7 ft 6 in. vertically (Correct answer)
- 8 ft horizontally and 8 ft vertically
- 4 ft horizontally and 6 ft 6 in. vertically
Correct answer: 6 ft horizontally and 7 ft 6 in. vertically
As defined in NEC 517.2, the Patient Care Vicinity is a space within a location intended for the examination and treatment of patients, extending 6 feet horizontally in all directions from the patient bed and extending vertically to 7 feet 6 inches above the floor. Special wiring and grounding rules apply within this zone.
Free E2 Health Care Facilities Questions and Answers 1
In a general care area of a health care facility, what is the minimum number of receptacles required at each patient bed location?