A surface over all of which the potential is the same. In a general
sense equipotential surfaces are given by planes or surfaces which cut
lines of force at right angles thereto, or which are normal to lines of
force. The conception applies to electrostatic and electro-magnetic
fields of force, and for current conductors the planes normal to the
direction [...]

The relative quantity of an electric charge upon a surface.

A galvanic battery is arranged in surface when all the positive plates
are connected together and all the negative plates are also connected.
This makes it equivalent to one large cell, the surface of whose plates
would be equal to the aggregate surface of the plates of the battery. It
is also used as an adjective, as “a surface [...]

A liquid is supersaturated when it has dissolved a substance at a
temperature favorable to its solubility and its temperature has been
allowed to change, the liquid being kept free from agitation or access
of air, provided crystallization or precipitation has not taken place.
It expresses the state of a liquid when it holds in solution more than
the normal [...]

Exposure to the arc light sometimes produces the effects observed in
cases of sunstroke. It is said that, in the case of workmen at electric
furnaces, these effects are very noticeable. (See Prostration,
Electric.)
[Transcriber's note: Effects are due to ultraviolet light.]

In storage battery cells, the formation of a hard white basic lead
sulphate, Pb2 S05. Its formation is due to over-exhaustion of the cells.
As long as the voltage is not allowed to fall below 1.90 volts per cell
little of it forms. As it accumulates it is apt to drop off the plate
and fall to the bottom, [...]

A subterranean system of conduits for electric cables. As generally
constructed in this country it includes manholes, q. v., at the street
corners connected by ducts or pipes. These pipes are large enough to
hold a cable. To introduce a cable into a duct, which latter may be two
or three inches in diameter, and from two hundred to [...]

In electric distribution a conductor connected directly to a main; a
branch.

A branch or lead of wire taken from a branch lead: a term used in
electric distribution.

Symbol or abbreviation for Siemens’ Unit of Resistance. (See Resistance,
Siemens’ Unit of.)