The following definitions apply to this part:

Acceptable. An installation or equipment that is acceptable to the department and meets the requirements of this section. An installation or equipment is acceptable if:

(1) It is accepted, certified, listed, labeled, or otherwise determined to be safe by a nationally recognized testing laboratory; or

(2) For installations or equipment that no nationally recognized testing laboratory accepts, certifies, lists, labels, or determines to be safe, it is inspected or tested by another federal agency, or by state, municipal, or other local authority responsible for enforcing occupational safety provisions of the National Electrical Code, and complies with the provisions of the National Electrical Code, and complies with the provisions of the National Electrical Code as applied in this section; or

(3) For custom-made equipment or related installations that are designed, fabricated for, and intended for use by a particular customer, it is determined to be safe for its intended use by its manufacturer on the basis of test data that the employer keeps and make available for our inspection.

Accepted. An installation that has been inspected and certified by a nationally recognized testing laboratory to meet specified plans or procedures of applicable codes.

Bonding jumper. A reliable conductor that provides the correct electrical conductivity between metal parts that are required to be electrically connected.

Branch circuits. The part of a wiring system extending beyond the final overcurrent device protecting the circuit. A device not approved for branch circuit protection, such as thermal cutout or motor overload protective device, is not considered as the overcurrent device protecting the circuit.

Certified. Equipment that:

(a) Has been tested and found by a nationally recognized testing laboratory to meet nationally recognized standards, or to be safe for use in a specified manner; or

(b) Is a kind whose production is periodically inspected by a nationally recognized testing laboratory; and

(c) Bears a label, tag, or other record of certification.

Exposed. A live part that can be accidentally touched or approached nearer than a safe distance. This term applies to parts that are not suitably guarded, isolated, or insulated.

Fixed equipment. Equipment fastened or connected by permanent wiring methods.

Ground. A conducting connection, whether intentional or accidental, between an electrical circuit or equipment and earth, or to some conducting body that serves in place of the earth.

Grounded. Connected to earth or to some conducting body that serves in place of the earth.

Isolated. Equipment that is not readily accessible except through special means of access.

Labeled. Equipment that has an attached label, symbol, or other identifying mark of a nationally recognized testing laboratory that:

(a) Makes periodic inspections of the production of such equipment; and

(b) Whose labeling indicates compliance with nationally recognized standards or tests to determine safe use in a specified manner.

Qualified person. A person who is familiar with the construction and operation of the equipment and the hazards involved.

Shock hazard. Exists at an accessible part in a circuit between the part and ground, or other accessible parts if the potential is more than 42.4 volts peak and the current through a 1,500 ohm load is more than 5 milliamperes.

Weatherproof. Constructed or protected so that exposure to the weather does not interfere with successful operation. Rainproof, raintight, or watertight equipment may be considered weatherproof where weather conditions other than wetness, such as snow, ice, dust, or temperature extremes, are not a factor.