MARVIN MANDEL, Governor                                 945

this title. The only other changes made
are in style.

7-428. TELEPHONE SYSTEM.

TELEPHONE SERVICE OR EQUIVALENT COMMUNICATION
FACILITIES SHALL BE PROVIDED AT THE BOTTOM OF EACH
MAIN SHAFT OR SLOPE AND IN THE MINE FROM THE SURFACE
TO ANY WORKING SECTION OF THE MINE WHERE THE WORKING
IS AT LEAST 1,500 FEET FROM THE SURFACE. A TELEPHONE
LINE, OTHER THAN A CABLE, SHALL BE CARRIED ON
INSULATORS, INSTALLED ON THE OPPOSITE SIDE FROM THE
POWER OR TROLLEY WIRE. IF THE SERVICE OR FACILITY
CROSSES ANY POWER OR TROLLEY WIRE, IT SHALL BE
INSULATED ADEQUATELY. EACH TELEPHONE CIRCUIT ON THE
SURFACE SHALL BE PROTECTED BY LIGHTNING ARRESTERS.

REVISOR'S NOTE: This section presently appears as
Article 66C, section 590 of the Code. The
only changes made are in style.

7-429. SURFACE TRANSMISSION LINES.

AN OVERHEAD HIGH-POTENTIAL POWER LINE SHALL BE
PLACED AT LEAST 15 FEET ABOVE THE GROUND AND 20 FEET
ABOVE A DRIVEWAY OR HAULAGEWAY. IT SHALL BE INSTALLED
ON INSULATORS AND SUPPORTED AND GUARDED TO PREVENT
CONTACT WITH OTHER CIRCUITS. AN OVERHEAD POWER
CIRCUIT SHALL BE PROTECTED AGAINST LIGHTNING AND
VOLTAGE SURGES. A HIGH-POTENTIAL POWER LINE SHALL BE
PROTECTED ADEQUATELY BY CIRCUIT BREAKERS, FUSES, OR
BOTH. ELECTRIC WIRING IN SURFACE BUILDINGS SHALL BE
INSTALLED TO PREVENT MINIMUM FIRE AND CONTACT HAZARDS.

REVISOR'S NOTE: This section presently appears as
Article 66C, section 581 of the Code. The
only changes made are in style.

7-430. TRANSFORMER STATIONS.

(A) ENCLOSURE OF SURFACE TRANSFORMER.—UNLESS A
SURFACE TRANSFORMER IS ISOLATED BY ELEVATION AT LEAST
EIGHT FEET ABOVE THE GROUND, IT SHALL BE ENCLOSED IN A
TRANSFORMER HOUSE OR SURROUNDED BY A SUITABLE FENCE AT
LEAST SIX FEET HIGH. IF THE ENCLOSURE IS METAL, IT
SHALL BE GROUNDED EFFECTIVELY. THE GATE OR DOOR TO
THE ENCLOSURE SHALL BE LOCKED AT ALL TIMES, UNLESS AN
AUTHORIZED PERSON IS PRESENT.

REVISOR'S NOTE: This subsection presently appears
as Article 66C, section 582(a) of the Code.