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 |