NSI 30

Question 1

Definitions NSI 30 CP (O), (S) (OS)

Answer 1

CP(O)1 - carry out duties of a
CP(O) for HV equipment and is appointed to specified OA and NSI.

CP(S)1 - Carry out duties of a CP (S) for HV equipment and is appointed to specified OA and NSI.

CP(OS)2 - carry out duties of a CP(O),CP(S) for LV equipment and appointed to specified OA and NSI.

CP(OS)3 - carry out duties of a CP(O),CP(S) for MECH equipment and appointed to specified OA and NSI.

Question 2

Definitions NSI 30 SAP

Answer 2

SAP1 - carry out duties of a SAP for HV equipment and is appointed to specified OA and NSI

SAP2 - carry out duties of a SAP for LV equipment and is appointed to specified OA and NSI

SAP3 - carry out duties of a SAP for Mechanical equipment ( including the assessment of mechanical work near TO HV equipment and is appointed to specified OA and NSI

Question 3

What are the control point designations definitions

Answer 3

LCP - a control point at a position on or adjacent to the switching device.

SCP - a control point at the (SCS) substation control system

RCP - a control point at a remote location to the equipment at a substation.

Question 4

Definition OA1

Answer 4

Written authority to carry out the following operations were not in a zone established by points of isolation

1. To render Interlocks inoperative
2. To operate non-interlocked equipment from the LCP

The OA1 shall be accompanied and checked by an authorised person with operation authority OA2

Question 5

Definition OA2

Answer 5

Written authority to carry out the following operations

1. To the company and check the instructions for rendering interlocks in operative implemented on the correct equipment and carry out in the right sequence by the instructed person
2. To the company and check the operation of non-interlocked equipment from the LCP.
3. Operating on interlocked equipment from the SCP

Operations under items one and two above should be carried out in conjunction with a senior authorised person with operation authority OA1

Question 6

Definition OA3

Answer 6

Operation of fully or partially interlocked equipment from the LCP, SCP and RCP

Question 7

Definition OA5

Answer 7

Operation of HV equipment from the RCP

Question 8

Definition OA6

Answer 8

Operation of control functions for protection, inter-tripping, tele-control and fire protection systems