M 9 MCC template

• Document No.

• MCC identification

• MCC Bar Code

• Building

• Conducted on

  Date

• Technician name

• Additional Personnel

AS1851 & Contract requirements

• Select Frequency for MCC board

  Select 3 Monthly Annual

  • 3 Monthly
  • Annual

• Check reset buttons and reset as necessary<br>Report and record any resets

  Yes

  No

  N/A

• Check operation of all globes and replace as necessary

  Yes

  No

  N/A

• Replace any blown fuses and check operation of equipment supplied<br>Record details

  Yes

  No

  N/A

• Check that all wiring duct covers are fitted

  Yes

  No

  N/A

• Check contactors and relays for excessive wear, pitting or coil noise

  Yes

  No

  N/A

• Check switches and contactors for security of mounting

  Yes

  No

  N/A

• Ensure adequate stock of fuses are available at designated location

  Yes

  No

  N/A

• CHECK for loose busbar connections and cable

  Yes

  No

  N/A

• CHECK general condition of conduits, connectors,<br>switches and wiring for any condition likely to<br>adversely affect their function.

  Yes

  No

  N/A

• CHECK, clean or replace, as necessary, any faulty contacts or relays

  Yes

  No

  N/A

• CHECK overload ratings against motor nameplate ratings. (record)

  Yes

  No

  N/A

• CHECK circuit protectors (fuses and circuit breakers) for correct rating

  Yes

  No

  N/A

• CHECK connections at motors, switchboards and equipment subject to vibration. Re tighten cable terminations as necessary.

  Yes

  No

  N/A

• INSPECT interpole barriers and shrouds where fitted

  Yes

  No

  N/A

• CHECK and rectify any damaged or faulty exposed cable insulation.

  Yes

  No

  N/A

• INSPECT each switchboard internally and externally to ensure it is clean and free from rubbish.

  Yes

  No

  N/A

• CHECK panel seals, and rectify if faulty

  Yes

  No

  N/A

• CHECK and report where wiring diagram(s) or schedules are considered to be incorrect

  Yes

  No

  N/A

• CHECK continuity to earth. (note where measurements have been taken)

  Yes

  No

  N/A

• CHECK and record neutral current

  Yes

  No

  N/A

• Check and record all motor current and compare with rating (use Form 2)

  Yes

  No

  N/A

• Arrange for thermoscan and forward results to the Principals Representative

  Yes

  No

  N/A

• The following tests are carried out as far as reasonable practicable.
  in some cases isolation of the board may be required please note if permission to isolate is denied

• Media and notes can be added to each question

General

• Fault Protection (protection against direct contact with exposed conductive parts)

  Safe

  At Risk

  N/A

• Exposed terminals, lack of physical barrier isolation for terminals or bus"

  Safe

  At Risk

  N/A

• "Fault Protection (protection against indirect contact with exposed conductive parts)

  Safe

  At Risk

  N/A

• Double insulation, RCD protection, SELV, PELV, "

  Safe

  At Risk

  N/A

• Protection against hazardous parts (enclosure, lighting levels, locked cupboards or boards)

  Safe

  At Risk

  N/A

• Protection against spread of fire (fire penetrations etc)

  Safe

  At Risk

  N/A

• General condition of the electrical equipment (damage that could impair safe operation, disconnection of unused electrical equipment, corrosion, water damage or indication )

  Safe

  At Risk

  N/A

• Cables, electrical equipment show no undue evidence of insulation or sheath deterioration, and have appropriate mechanical protection for the environment in which they are installed.

  Safe

  At Risk

  N/A

• Mechanical/Physical damage to Electrical Equipment, electrical ducts, conduit or trunking

  Safe

  At Risk

  N/A

• Conductor insulation is the correct colour

  Safe

  At Risk

  N/A

• RCD, MCB, Fuses and Switches show no evidence of mechanical damage, correct orientation of MCB

  Safe

  At Risk

  N/A

• Covers giving access to live parts broken, missing or not fitted

  Safe

  At Risk

  N/A

• Electrical fittings/equipment have correct IP rating, and is designed for the environment in which it is located

  Safe

  At Risk

  N/A

• "Safety distance clearances have not been compromised

  Safe

  At Risk

  N/A

• Distances from live parts, access door clearances etc."

  Safe

  At Risk

  N/A

• Overheating, Electrical arcing, mechanical or electrical damage to wiring or electrical equipment

  Safe

  At Risk

  N/A

• "Conductors are held securely in their terminals and are not subject to tension at the terminations.

  Safe

  At Risk

  N/A

• (Connectors, terminals, are crimped and connected correctly etc)"

  Safe

  At Risk

  N/A

• Thermographic testing

  Yes

  No

  N/A

• Use of double adaptors

  Safe

  At Risk

  N/A

Earthing

• MEN Connection (Connection, condition & Location)

  Safe

  At Risk

  N/A

• Earth Electrode (Connection, condition & location

  Safe

  At Risk

  N/A

• Earth Connections, wiring and equipment show no evidence of corrosion, damage or poor connections

  Safe

  At Risk

  N/A

• Earthing conductors (size, id are correct etc)

  Safe

  At Risk

  N/A

• Equipotential Bonding conductors (size, id)

  Safe

  At Risk

  N/A

• Connections , terminations, joints (good connections etc)

  Safe

  At Risk

  N/A

• Exposed metal liable to become alive is connected to earth ( panels, doors etc.)

  Safe

  At Risk

  N/A

• External protection (does the connection require mechanical protection, condition of existing protection)

  Safe

  At Risk

  N/A

Switchboards

• Isolating switches (condition)

  Safe

  At Risk

  N/A

• Protective devices (discrimination, selection and setting of protective devices)

  Safe

  At Risk

  N/A

• Location (ingress, egress, restricted locations

  Safe

  At Risk

  N/A

• "Connection bars, links and terminal condition (no broken links, faulty terminations, incorrect connections)"

  Safe

  At Risk

  N/A

• Switchboard equipment is correctly labelled

  Yes

  No

  N/A

• Neutral bars are mounted on insulated supports

  Safe

  At Risk

  N/A

• Live part access requires a tool or key to access

  Safe

  At Risk

  N/A

Electrical Equipment

• Isolation and switching devices for protection against injury from mechanical movement devices and motors

  Safe

  At Risk

  N/A

• Isolation and switching devices for protection against injury from thermal effects, motors, heaters

  Safe

  At Risk

  N/A

• Installation conditions, (locations affected by water, explosive, corrosive atmospheres etc)

  Safe

  At Risk

  N/A

• Electrical Equipment is adequtely supported (mounting bolts, fittings, unistrut etc.)

  Safe

  At Risk

  N/A

• Standard compliance

  Safe

  At Risk

  N/A

Wiring systems

• Conductor size (current carrying capacity, voltage drop If load or Maximum demand is known)

  Safe

  At Risk

  N/A

• Wiring terminations are correct and in good condition, screws and terminals are tight

  Safe

  At Risk

  N/A

• There is adequate insulation or distance between live conductors and earth

  Safe

  At Risk

  N/A

• Cable core ID (Cables have identifiers fitted)

  Yes

  No

  N/A

• Adequate support & fixing (cables are neat and tidy, there should be no undue strain or poor routing of wiring)

  Safe

  At Risk

  N/A

• Connection & enclosure (No mechanical damage to enclosures, seals are intact and connections are good. Cables glands are attached and working correctly)

  Safe

  At Risk

  N/A

• Correct segregation of services and installation type

  Safe

  At Risk

  N/A

• Protection against external sources (adequate IP rating, condition of conduit etc)

  Safe

  At Risk

  N/A

Limited Testing

• Earth Continuity Test (indicate earthing that was tested)

  Safe

  At Risk

  N/A

• The main earthing conductor between the Switchboard and earth electrode is continous and and does not exceed 0.5 Ω"

  Safe

  At Risk

  N/A

• The connection between any point of the installation and the switchboard earth bar is continous

  Safe

  At Risk

  N/A

• The resistance of equipotential bonding does not exceed 0.5 Ω (indicate what has been tested)

  Safe

  At Risk

  N/A

Polarity and correct circuit connections

• All switches and protective devices, switch the active conductor only

  Safe

  At Risk

  N/A

Earth leakage current

• Measure neutral and earth leakage, if earth leakage is greater than 10 mA then further tests may be required.<br>Record measurements

  Safe

  At Risk

  N/A

• Comments (add any additional concerns or safety issues here)

• Name and signature of technician carrying out maintenance

  Sign

• Licence Number