ELECTRICAL SAFETY INSPECTION REPORT

Transcription

1 ELECTRICAL SAFETY INSPECTION REPORT M/S. PROUD TEXTILE Plot 31/A, BSCIC Industrial Estate, Fatullah, Narayanganj, Bangladesh Factory List: 1. Inspected by: Pema Wangdi Report Generated by: Pema Wangdi Inspected on February 20 th 2015

2 SUMMARY The M/S Proud Textile factory is established its nine storied (G+8) building and a rented six storied (G+5) building. The two buildings are adjoined and are interconnected. The whole ground floor of the building is occupied by an embroidery factory. The nine storied building and six storied building were constructed in the 1998 and 1997 respectively. Production in these buildings began in the The building has been formally approved for industrial purposes. During the time of the inspection, the factory accommodated a total of about 489 workers working on regular basis. The Factory was surveyed for electrical safety by Woosun Energy and Construction Co., Ltd. (WEC). The purpose of the survey was to identify significant electrical safety issues and to provide recommendations for remediation based on applicable standards specified by the Accord. The scope of this initial electrical safety inspection was limited to the review and identification of major electrical safety issues. The inspection did not include identification of minor deficiencies, which would be further dealt with as part of follow-up inspections. The table below summarizes the major electrical safety issues identified during the inspection. Recommendations have been provided to each finding. The implementation schedule shall be developed by the factory to remediate each of the findings. The specific timing of improvements, including any requested extensions due to design/installation constraints, shall be submitted to the Accord for an approval. Page 2 of 16

3 FINDINGS AND RECOMMENDATIONS FINDING NO: E-1 CATEGORY: DESIGN, DRAWINGS & RECORDS Electrical Single Line Diagram (SLD) is unavailable. Draw as-built electrical SLD mentioning all required information by qualified engineer and get it reviewed by Accord. REMEDIATION TIMEFRAME: 12 WEEKS FINDING NO: E-2 CATEGORY: DESIGN, DRAWINGS & RECORDS Thermographic scanning of the entire electrical system has not been performed. Thermographic scanning of the entire electrical system must be performed twice in a year. PRIORITY: P1 REMEDIATION TIMEFRAME: 8 WEEKS FINDING NO: E-3 CATEGORY: DESIGN, DRAWINGS & RECORDS Insulation resistance test of electrical equipment is not performed. Insulation resistance test of all power cables (up to floor distribution board or SDB) must be performed in a periodic manner and recorded. REMEDIATION TIMEFRAME: 8 WEEKS Page 3 of 16

4 FINDING NO: E-4 CATEGORY: DESIGN, DRAWINGS & RECORDS Earth pits are not identifiable Identify each earth pit and mark it for periodic maintenance purpose REMEDIATION TIMEFRAME: 8 WEEKS FINDING NO: E-5 CATEGORY: DESIGN, DRAWINGS & RECORDS Earth Pit resistance record is unavailable Record earth pit resistance for all the earth pit and do once in a year REMEDIATION TIMEFRAME: 8 WEEKS FINDING NO: E-6 CATEGORY: DESIGN, DRAWINGS & RECORDS Electric safety program is not initiated. Electrical safety training and awareness program for the electrical personnel and workers must be initiated and recorded. REMEDIATION TIMEFRAME: 8 WEEKS FINDING NO: E-7 CATEGORY: LIGHTNING PROTECTION & EARTH Lightning Protection System (LPS) needed but has not been installed. Design and install Lightning Protection System (LPS) in the factory; the LPS designs must be submitted to Accord before starting installation. PRIORITY: P1 REMEDIATION TIMEFRAME: 8 WEEKS Page 4 of 16

5 FINDING NO: E- 8 CATEGORY: SERVICE LINE Service line between the pole mounted distribution transformer and building are not supported. Service cables must be supported on trays or raisers throughout its length to prevent any damage to its cable insulation. REMEDIATION TIMEFRAME: 5 WEEKS LT service line from the DPDC transformer FINDING NO: E-9 MCCB and re-wireable fuses mounted on wooden plank/board (typical) Provide metallic enclosure instead of wood for the MCCB and replace the semi-enclosed rewire able fuses with MCCB and put inside the metallic enclosure. PRIORITY: P1 REMEDIATION TIMEFRAME: 10 WEEKS The distribution board FINDING NO: E-10 CATEGORY: GENERATOR ROOM Generator output cables laid on concrete floor without protection. Cable terminating at Generator output terminal box must be supported on riser and protected. Existing cables laid on floor may be installed in covered cable trench or on trays. PRIORITY: P1 REMEDIATION TIMEFRAME: 5 WEEK The diesel generator output cables Page 5 of 16

6 FINDING NO: E- 11 CATEGORY: TRANSFORMER ROOM Oil cup below transformer breather is empty. Breather oil cup must be filled with transformer oil to required level as instructed by the manufacturer. PRIORITY: P1 REMEDIATION TIMEFRAME: 1 WEEK The transformer breather FINDING NO: E- 12 CATEGORY: GENERATOR ROOM Generator battery placed without cover. Generator Battery must be placed on the battery stand made of noncombustible, acid proof material (steel fabricated frame). REMEDIATION TIMEFRAME: 5 WEEKS The generator batteries FINDING NO: E- 13 MCCBs mounted on wall without enclosure. Protective devices should be encased in metal casing made of 20 SWG thickness metal sheets to reduce the risk of fire spreading due to short circuit. PRIORITY: P1 REMEDIATION TIMEFRAME: 5 WEEKS The MCCBs mounted on the wall Page 6 of 16

7 FINDING NO: E- 14 CATEGORY: CABLE & CABLE SUPPORT Cables are not arranged on the cable tray. Cable must be arranged and latched properly on the cable tray. Provide cover made of noncombustible material preferably metallic sheet to protect the cables insulation from physical damage as well as prevent the ingress of debris, dust and lint. REMEDIATION TIMEFRAME: 10 WEEKS Cables entering/exiting the changeover switch FINDING NO: E- 15 Panel doors not connected with earth bond. All metal panel doors must have an earth connection of at least 4 rm earth cable. The changeover switch FINDING NO: E- 16 Inadequate working space around changeover switch. Ensure at least 1.07 meter (or equal to the width of board, whichever is higher) working clearance in front of each panel. The changeover switches Page 7 of 16

8 FINDING NO: E- 17 Cable glands are not used and the changeover switch base/top is not sealed Provide cable gland according to the respective cable size so that the cables are not stressed on the sharp edges of the hole of panels. Provide covers (of noncombustible material) if any additional gap remains after installing cable glands. REMEDIATION TIMEFRAME:10 WEEKS The changeover switch FINDING NO: E- 18 Multiple cables are terminated into single point of changeover switch. Multiple cable termination from the changeover switch terminal must be removed. A distribution panel must be installed to avoid multiple cable termination. The changeover switches Page 8 of 16

9 FINDING NO: E- 19 CATEGORY:GENERATOR ROOM Generator frame not connected to earth properly. Two separate earthing (35 sq. mm) for generator frame/body and one separate earthing (35 sq. mm) for neutral must be installed for generator. The earth resistance should one exceed 1 ohm. The generator frame earth FINDING NO: E- 20 CATEGORY:BOILER & COMPRESSOR ROOM Compressor input cables laid on floor without protection. Use steel pipe/cable tray to ensure the mechanical protection of the cable laid on floor otherwise cable insulation may damage due to falling object or stepping of occupants onto it. REMEDIATION TIMEFRAME:10 WEEKS The air compressor FINDING NO: E- 21 CATEGORY: GENERATOR ROOM Combustible materials in generator room. Generator room must be kept clean and dry. PRIORITY: P1 REMEDIATION TIMEFRAME:1 WEEK Combustible materials in generator room Page 9 of 16

10 FINDING NO: E- 22 CATEGORY: GENERATOR ROOM Inadequate working space around the generators. Expand the existing generator room to provide safe working space as per BNBC table or keep sufficient space (1.07 meter preferably) around the generator. The generator room FINDING NO: E- 23 CATEGORY: CABLE & CABLE SUPPORT Cables are not protected and randomly arranged in cable tray. Cable must be arranged and latched properly on the cable tray. Provide cover made of noncombustible material preferably metallic sheet to protect the cables insulation from physical damage as well as prevent the ingress of debris, dust and lint. Keep 20%-30% free inside cable tray/channels/ducts for proper heat dissipation. The cables on the tray FINDING NO: E- 24 CATEGORY:BOILER & COMPRESSOR ROOM Power cables encased in PVC flexible duct laid on concrete floor. Install cable tray to protect the compressor power cables. Provide covers made of noncombustible material preferably metal to protect the cable s insulation from any physical damage as well as prevent the ingress of debris, dust and lint. PRIORITY: P1 REMEDIATION TIMEFRAME:1 WEEK The compressor room Page 10 of 16

11 FINDING NO: E- 25 CATEGORY: CABLE & CABLE SUPPORT Cables drawn in a haphazard manner. The cables are not supported/protected. The cables must be dressed and shall be drawn in covered cable tray or rigid conduit. PRIORITY: P3 The cables in the compressor room FINDING NO: E- 26 Unused gland holes in top and base plates left open. The unused gland holes must be sealed using suitable size panel hole plugs. REMEDIATION TIMEFRAME:1 WEEK The distribution board Page 11 of 16

12 FINDING NO: E- 27 CATEGORY:BOILER & COMPRESSOR ROOM Boiler is not separated from the work place. Separate the boiler from working area by constructing fire rated construction. REMEDIATION TIMEFRAME:10 WEEKS The boiler in the production floor FINDING NO: E- 28 CATEGORY:BOILER & COMPRESSOR ROOM Power contactor in the boiler panel not fixed to the frame. Power contactor inside the boiler control panel must be firmly fixed to the frame. The boiler control panel Page 12 of 16

13 FINDING NO: E- 29 CATEGORY:BOILER & COMPRESSOR ROOM Power and control circuit of boiler are carried through flexible PVC pipe. Use industrial graded (heat resistant) pipe conduit for power and control circuit of boiler. REMEDIATION TIMEFRAME:10 WEEKS The boiler in the production floor FINDING NO: E- 30 Combustible materials stored near distribution board. Combustible materials must not be piled in the distribution board vicinity. REMEDIATION TIMEFRAME:1 WEEK The distribution board Page 13 of 16

14 FINDING NO: E- 31 Multiple cables inserted into single lugs. Use proper sized cable lug for each single cable and punch them by a proper hand puncher or hydraulic puncher to avoid loose connection. Enlarge the earth bus bar size according to the capacity of the panel and make more holes. Use single point (hole) of bus bar to terminate each single cable (lugs). The distribution board REMEDIATION TIMEFRAME:1 WEEK FINDING NO: E- 32 Openings in the panel top cover plate. Provide cable gland according to the respective cable size for cable entry and exit so that the cables are not stressed on the sharp edges of the hole of panels. Provide covers (of noncombustible material) if any additional gap remains after installing cable glands. The distribution board REMEDIATION TIMEFRAME:3 WEEKS Page 14 of 16

15 FINDING NO: E- 33 Phase barrier/separators between different phases are not installed. Phase barriers between different phases supplied by the breaker manufacturer must be installed to avoid arc flashing. REMEDIATION TIMEFRAME:1 WEEK The distribution board FINDING NO: E- 34 Multiple cable termination from MCCB. Remove all the multiple cable termination from the MCCB and busbars may be installed if necessary. The distribution board Page 15 of 16

16 FINDING NO: E- 35 Cables entering panel not arranged and supported properly. Cables below and top of panel must be carried through rigid pipes/tray and supported properly (clamped with saddle, at regular interval of 600 mm).the conduit/tray shall run vertically or horizontally, shall never at angle. The cables entering/exiting the distribution board FINDING NO: E- 36 Cables for the sewing machines laid on the floor. Install cable tray with metallic cover to provide mechanical support to cables laid haphazardly on the floor. The power cables for the sewing machines Page 16 of 16