TECHNOLOGY
Quality Vessels ask for
Diamond/Sea-Glaze
Closures
Photos by Steve D’Antonio
Top and above: One can only guess how much time it would
have taken for this severely burned shorepower cable to
eventually cause a fire.
Diamond/Sea-Glaze offers quality marine
closures custom fabricated to a wide variety
of shapes and sizes.
In the market for new doors, windows or hatches?
Call DSG, our representatives
will be glad to assist you.
26995 Gloucester Way, Langley, BC, Canada V4W 3Y3
Telephone 604.607.0091, Fax 604.607.0092
Toll Free International 800.770.0455
Email: info@diamondseaglaze.com
www.diamondseaglaze.com
from several dozen to a hundred or more times a year.
Fortunately, we don’t supply power to our homes in this
way, although we certainly do to our boats.
Adding to the potential for problems or failure is
the fact that the power requirements for the average
cruising boat can be quite substantial. The most
common power supply is a single 120-volt, 30-amp
arrangement, referred to in the industry as a NEMA
L- 5 30 connector. However, many boats today use
two such connections: one for the vessel’s house needs
and the other for air conditioning. And more and more
boats now come equipped with 120/240-volt service at
50 amps (that’s two “legs” of 50 amps each, for a total
of 100 amps—equivalent to what a small cottage or
well-equipped combination home shop and garage
might use). It was once unusual to find 50-amp, 240-
volt electrical service on any boat smaller than 50 feet,
but now it’s not uncommon on boats of 35 feet.
