Pennsylvania Code › Title 7 - AGRICULTURE › Part V-D - Amusement Rides and Amusement Attractions › Chapter 139 - AMUSEMENT RIDES AND ATTRACTIONS ERECTED PERMANENTLY OR TEMPORARILY AT CARNIVALS, FAIRS AND AMUSEMENT PARKS › Subchapter C - OPERATION, MAINTENANCE AND RECORDS › Section 139.74 - Temporary wiring

Current through Register Vol. 54, No. 28, July 13, 2024
(a) Feeders
				  must be provided with overcurrent protection in accordance with the load
				  imposed and conductor size as specified in Article 240 of the
National
				  Electrical Code
.
(b)
				  Branch circuits must originate in an approved power outlet or panelboard.
				  Conductors shall be permitted within multiconductors. Conductors shall be
				  protected by overcurrent devices at their rated capacity.
(c) Receptacles must be of the grounding
				  type. Unless installed in a complete metallic raceway, branch circuits must
				  contain a separate equipment grounding conductor and all receptacles must be
				  electrically connected to the grounding conductor.
(d) Bare conductors or earth returns may not
				  be used for the wiring of a temporary circuit.
(e) Suitable disconnecting switches or plug
				  connectors shall be installed to permit the disconnection of ungrounded
				  conductors of a temporary circuit.
(f) Lamps for general illumination exclusive
				  of decorative or festoon lighting shall be protected from accidental contact or
				  breakage. Protection shall be provided by elevation of at least 7 feet from a
				  normal working surface or by a suitable fixture or lamp-holder with a
				  guard.
(g) Temporary wiring over
				  600 volts shall be permitted during periods of construction, tests, experiment
				  or emergency. A less permanent class of wiring and equipment shall be permitted
				  than would be required for permanent installations.
(h) Suitable fencing, barriers or other
				  effective means shall be provided to prevent access of other than authorized
				  and qualified personnel to temporary wiring over 600 volts.
(i) Temporary wiring over 600 volts shall be
				  removed immediately upon completion of construction or purpose for which the
				  wiring was installed.
(j) Temporary
				  electric wiring, if suspended, shall be supported so that its protective
				  insulation will not be damaged.
(k)
				  Overcurrent protection devices may not be installed in neutral or grounding
				  conductors.
(l) Where electrical
				  power is supplied for an amusement ride by a generating system, the generator
				  and equipment must be properly grounded.
(m) Receptacles and attachment plugs must be
				  of the grounding type and have ground fault interrupter (GFI)
				  protection.
(n) Electrical
				  installations and each electrically powered amusement ride must be effective as
				  to noncurrent carrying metal parts which may become energized and which are
				  exposed to contact by personnel. The path to ground from circuits, equipment
				  and conductor enclosures must:
(1) Be
				  permanent and continuous.
(2) Have
				  ample carrying capacity to conduct currents liable to be imposed on
				  it.
(3) Have impedance, as
				  evidenced by testing, sufficiently low to limit the potential above ground and
				  to facilitate the operation of the overcurrent devices in the
				  circuit.