FAQ
93
Cat. No. GFWR2
20-Amp, 125-Volt, 
Weather-Resistant.
Self-Test Receptacle
Cat. No. W7313
30-Amp, 125-Volt, 
Industrial Grade 
Flush Mount
Weather-Resistant 
Receptacle
Cat. No. W0279
50-Amp 125/250-Volt, 
Industrial Grade 
Flush Mount 
Weather-Resistant 
Receptacle
Material taken from the National Electric Code
®
 is reprinted with permission 
from NFPA 70
®
, 2023 edition. National Electrical Code
®
, Copyright 2022, 
National Fire Protection Association, Quincy, MA. All rights reserved.
NEC
®
 Text 
Revision
555.4 Service Equipment Location for a 
Floating Structure 
Change Summary 
• Revision clarifies the distance for the service   
  equipment location and height above the electrical   
  datum plane.
Article 555 Marinas, Boatyards, Floating Buildings, and 
Commercial and Noncommercial Docking Facilities
555.4 Location of Service Equipment. The service 
equipment for a oating building, dock, or marina shall 
be located on land no closer than 1.5 m (5 ft) horizontally 
from and adjacent to the structure served, but not on or in 
the structure itself or any other oating structure. Service 
equipment shall be elevated a minimum of 300 mm (12 in.) 
above the electrical datum plane.
Expert Analysis 
A revision has been made to clarify the distance for the 
service location and height above the electrical datum 
plane to promote electrical safety and enforceability. 
In addition, the new language will provide consistency 
between similar requirements in Articles 682 and 555.
continued on page 94










