NEC 555 Signage

[jar546]

Did you know:

555.10 Signage.
Permanent safety signs shall be installed to give notice of electrical shock hazard risks to persons using or swimming near a docking facility, boatyard, or marina and shall comply with all of the following:

• (1) The signage shall comply with 110.21(B)(1) and be of sufficient durability to withstand the environment.
• (2) The signs shall be clearly visible from all approaches to a marina, docking facility, or boatyard facility.
• (3) The signs shall state “WARNING — POTENTIAL SHOCK HAZARD — ELECTRICAL CURRENTS MAY BE PRESENT IN THE WATER.”

Electrical shock drowning is only one of many hazards that exist in the water around marinas and boatyards. Part of an effective plan to reduce the number of incidents is a no swimming policy. Prohibiting recreational swimming in the immediate vicinity of boats and docks using ac electrical power will protect the public against the dangers associated with using electrical power in marinas and boatyards. The warnings provided by signage, such as that pictured below, along with enforcement by marina and boatyard operators, can help promote changes in the behavior of those using facilities covered by Article 555 with the intended result being to save lives and prevent injuries that have occurred too frequently in bodies of water associated with public and private marinas and docking facilities.

 

[jar546]

Do you believe that the mandated signage and no-swimming policies are enough to significantly reduce incidents and educate the public, or should additional measures be implemented?

 

[BN4537]

How about this proposed change to keep people from swimming:

555.15 - Stocking of Alligators
Where wiring or equipment is installed in areas within the scope of Article 555, large carnivorous reptiles complying with the provisions of 555.15 (A) through (C) shall be provided to discourage unauthorized swimming in waters that may have electrical currents present that would be hazardous to swimmers. Signage bearing the precise wording and diagram in accordance with 555.10(4) shall be required to provide warning that large carnivorous reptiles are present.

(A) The large carnivorous reptiles shall be a species of alligator not less than 2133.6 mm (84 in.) in length and shall be of an approved weight.

(1) At least one alligator shall be provided for the first 0.84 sq. m. (9 sq. ft), or fraction thereof of the water surface adjacent to the equipment. One alligator shall be provided for every additional 1.7 sq. m. (18 sq. ft.) or fraction thereof, of the water surface adjacent to the electrical equipment.
(2) A barrier shall be provided to keep the required alligators in the required area.
(3) Alligators shall not be fed more than once a week.
Exception: Alligators provided with a wireless receiver designed to administer an effective shock if they leave the designated area shall not require a barrier.

(B) The large carnivorous reptiles shall be listed and labeled to meet UL 61010 by a nationally registered testing laboratory. The label shall be of a contrasting color and clearly visible during normal operation.
(C) Crocodiles shall not be permitted to be installed in the place of the required alligators except by special permission from the authority having jurisdiction.

Informational note: Alligators should not be fed more than once a week to promote the effectiveness of the system. Fat, lazy alligators are unlikely to be effective.

 

[north star]

@ ~ @

Good stuff ** Beniah ** !........I'll play along.
Wouldn't the alligators also receive a shock in the same waters
that they are patrolling ?

@ ~ @

 

[north star]

$ $ = $ $

Rembo, ...are you overdosing on the AI ?

$ $ = $ $

 

[BN4537]

AC current doesn't bother them as much. Also, if they are observed to be behaving strangely, it lets you know you have a wiring problem...

More on shocking gators:

 

[ICE]

Toss in a cat. You'll know about electricity and alligators. And just so you cat lovers know, I don't have a cat.