23.1 Transmission and Distribution - Electric and Steam

 

See ยง152.14(e); 292.14(e); 441.14(e); or 542.14(e), as appropriate.

 

Item

Description

Retention period

(a)

Substation and transmission line logs.

Ditto.

(b)

System operator's daily logs and reports of operation

Ditto.

(c)

Storage battery and other equipment logs and records

Ditto.

(d)

Interruption logs and reports

6 years.

(e)

Records of substation general inspections and operation tests

3 years.

(f)

Apparatus failure reports

6 years.

(g)

Line-trouble reports and records

3 years.

(h)

Lightning and storm data

6 years.

(i)

Insulator test records

3 years.

(j)

Reports on inspections and repairs of all street openings

6 years.

(k)

Records of meter tests

Most recent test record shall be retained for at least 6 years, and any prior test record shall be retained for at least 2 years, or as may be necessary to comply with service rules regarding refunds on fast meters.

(l)

Meter shop reports (monthly reports summarizing tests, repairs, etc.)

3 years.

(m)

Meter history records

For life of meter.

(n)

Transformer history records

For life of transformer.

(o)

Records of transformer inspections, oil tests, etc.

Destroy at option.

(p)

Pole, tower, structure, equipment and other history records

For life of equipment.

(q)

Board of Fire Underwriters certificates

3 years.

(r)

Orders from municipalities in connection with street lighting or traffic signal systems

Ditto.

(s)

Service record-condensation pumped in steam distribution system

1 year.

(t)

Valve record size, location, and operating data

Life of corporation, unless information is summarized in other records