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Notices served

Notice 311162431 served against Cleveland Potash Limited on 25/11/2020
Notice Type Improvement Notice
Description IN NB 4667399/1 (311162383) You have failed to ensure that the surface 11 Kv distribution system is constructed as to prevent, so far as is reasonably practicable, danger because the construction of the system allowed on the 20th of November 2020 an electrical fault condition to cause an explosion and subsequent fire in the Bank Back Fill substation and a fire on number 22 PIX switch in the main surface substation IN NB 4667399/2 (311162431) You failed to prevent danger, on your surface 11 Kv distribution system by maintaining it to prevent, so far as is reasonably practicable, such danger; 1. On the 20th of November 2020 the 110 volt tripping batteries in the main 11 Kv surface substation failed to operate the P40 Agile protection relay on number 22 PIX 11 Kv circuit breaker under fault conditions resulting in explosion and fire in the Bank Back Fill substation and fire on number 22 PIX switch in the main surface substation. 2. You subsequently also failed to demonstrate that the 110 volt tripping batteries in the main surface substation and the Sahut substation were inspected , tested and maintained to ensure that they would operate protection relays under fault conditions 3. You also failed to demonstrate that protection relays in Sahut substation were inspected , tested and maintained to ensure that they would operate under fault conditions Both improvement notices complied with see letter reference 4667399/1 and 2
Compliance Date 26/03/2021 Revised Compliance Date
Result Complied with

Breaches involved in this Notice

Location of Offence
Address Boulby/Cleveland Potash Ltd
Boulby
Loftus
SALTBURN BY THE SEA
Cleveland
TS13 4UZ
England
Region Yorks & North East
Local Authority Redcar & Cleveland
Industry Extractive and utility supply industries
Main Activity 08910 - MINING CHEMICAL/FERTILISER
Type of Location Other Mine
HSE Details
HSE Group EDU6S1M HSE Directorate Energy Division
HSE Area HSE Division North East
Updated: 2020-03-04