SMOKE AND FIRE CURTAINS

Transcription

1 SMOKE AND FIRE CURTAINS ALWAYS PROTECTING PEOPLE

2 Specialising in fire and smoke engineering solutions for the construction and industrial, Smoke and Fire curtains, GELEC is the world-wide supplier and installer. Automatic smoke / fire curtains are an essential safety component, designed to protect life and help save lives, by containing and stopping the spread of superheated fire and noxious gases. When a curtain is required to deploy in an emergency situation it is probable that the mains supply to the control panel may have already failed and that the cables linking the fire curtains to the control panel might become damaged. Under these circumstances with no power available the fire curtain will have to deploy by gravity. A test in which a curtain is powered down under normal test conditions are only proving that they can deploy when powered. This does not confirm an ability to fail safe. For this reason GELEC Smoke / Fire curtains are always deployed by gravity and every time the system is tested; thus all GELEC curtains are completely Gravity Fail Safe, and incorporate the latest electronic technology, making them the most advanced, cost effective solution in today s market in terms of smoke and fire control. All GELEC Smoke and Fire curtains are manufactured in accordance with BS EN ISO 9001 certification and meet the full requirements of European Fire and Safety regulations. Features Single and over lapping curtains, tested at 1000 C and over for 270 minutes. Fully automatic and fail safe control Hatchway fire curtains No standard sizes but made to your drawings specifications Various options to your specifications Synchronised with building s fire safety control Slim and lightweight, can be fixed to all kinds of construction. Sealed to prevent the passage of fire or smoke 24V operation with battery back-up Unlimited width without inter-posts Drop height over 12 metres Guide rails can be surface or concealed mounted Options Available Two stage descent facilities Powder coating in any standard RAL colour Manual override for emergency egress Audio and visual warnings Manual reset with stand-alone smoke detector Operation Under normal conditions the curtain is retracted in the head box and is held in position by the electronics contained within a remote enclosure mounted on the motor end of the box. The bottom bar will be resting against the under side of the box or below the box if a stopping bar is installed, the stopping bar will then rest against the box. In the event of a fire condition or operation of the test key switch the group control panel removes the power to the curtain motors. The curtain descends in a controlled manner under the power of gravity and stops in the lower position when all the fabric is unwound from the roller. When the signal is reset the group control panel re-connects the power to the motors which will retract the curtains to the up position. Should the mains power fail to the group control panel the supply is automatically switched to the integral standby battery. The curtain remains in the retracted position, and the curtain will remain fully operational until the battery low voltage cut off facility reads a voltage of 21V, the curtains will then descend under the power of gravity to the operational position.

3 Specification GROUP CONTROL PANEL Mains Supply: 230v AC 50Hz Mains supply required each panel position. Fire Alarm Interface: Pair of clean contacts per fire zone. GCP s can be interlinked. Should a zone of curtains require to be activated by more than 1 smoke zone the fire alarm contacts can be wired in series. Motors: 24v AC/DC supply from GCP. A loop of 2.5mm² 2 core and earth cable with a maximum loop length of 100m should be installed. If a greater loop length is required the installer should ensure that the supply voltage will not fall below the 24v required. Battery: 2 x 7 aph rechargeable Fire Signal: Open on fire configured to be fail safe Test Facility: Key Switch Indication: Green LED = Mains Healthy Yellow LED = Battery Fault Green LED = Fire alarm Status Normal Panel Size: 396mm High x 334mm Wide x 105mm Deep Operation of the automatic curtains is carried out via a Group Control Panel. Each GCP is capable of controlling up to 6 no. of 24v motor assemblies. In normal operating conditions the GCP will provide a 24v AC supply to the curtain motors and the curtains will be held in the retracted condition. Should smoke be detected, the fire alarm contact in the GCP will be opened by the fire alarm control system, the GCP will remove the 24v supply to the curtain motors and the curtains will descend under the power of gravity in a controlled manner. As soon as the fire alarm system is reset the GCP will reinstate the 24v supply to the curtain motors and the curtains will retract. Current limiting circuits will detect when the curtain has fully retracted and the supply voltage to the motor will step down to a holding voltage. Each GCP will be supplied with a 24v 7aph battery, this will enable full control of the system should the mains power fail. The battery voltage will be monitored, upon the voltage reaching 85% of the nominal charge it shall be disconnected and the curtains will deploy under gravity at a controlled speed. MOTOR CONTROL CIRCUIT Enclosure: 145mm H x 250mm W x 50mm D Installation: Fix onto the Motor End of the Head Box MOTOR ASSEMBLY BL24/HP-24 Volt Tubular Motor Ascent: Upper Limited Descent: Controlled Gravity Fall Brake: Back EMF Generation from the Motor Circuit Lower Limit Control: Extent of Fabric

4 Specification HEAD BOX SIZING CHART (mm) Smoke Curtain Type G1K1 Fire Curtain Type G1K4 Manufactured from 18 s.w.g. galvanized steel sheet. Curtain Drop Up to 3000 Up to 8000 Up to Up to 3000 Up to 8000 Up to Single Roller 150 x x x x x x 250 Side by Side Rollers 250 x x x 210 N/A N/A N/A Over & Under Roller 150 x x x x x x 440 FABRIC BOTTOM BAR Panama woven glass cloth with micronized aluminium polymer, tested weight of 540g/m². Tested to 60 minutes at 1000 C. comprises a pair of inverted aluminium angles riveted either side of the Curtain. wire reinforced polymer coated glass cloth with a tested weight of 700g/m². Tested to 270 minutes (4½ hours) at 1000 C. mild steel angle with an overall dimension of 42mm. The T bar can be powder coated to any standard RAL finish. CURTAIN ROLLER 70mm diameter x 1.2mm octagonal steel tube. 76mm diameter x 4mm circular steel tube. Smoke Curtain Type G1K1 The G1K1 Automatic Smoke Curtain is fully certified to BS: 7346 part 3 and EN , the entire system is able to withstand 1000 cycle of operation without damage to the curtain fabric, also the primary energy source is reliable in operation over 1000 cycles with unchanged regarding to cycle times or operation speeds. In addition, the leakage rate of G1K1 Automatic Smoke Curtain is less than 25m 3 /h per m 2 at 25 Pa. The fabric of one hour fire rating is generally used for smoke curtains, which are manufactured from grams per square metre with a micronised aluminium polymer coating on both sides of the fabric. This fabric is manufactured and tested to withstand 1000 o C for a period of 60 minutes and 600 o C for a period of 120 minutes. The side seams and joints are closed with the use of cotton covered stainless steel thread. They are automatically controlled using the tubular motor system with group control panels and similar motor configurations as used with the fire curtains. The smoke curtains may not be installed with side guides as there is a tolerance allowed around the edges through which smoke may seep. The over-lapping of one motorised curtain against another is used to cover larger expanses. The curtain is retained together with the over-lapping and also that of a pair of inverted metal bar at the bottom. Fire Curtain Type G1K4 The G1K4 Automatic Fire Curtain is fully certified to BS: 476 Part 22, the entire system has a rating of 270 minutes (4-1/2 hours) at C and over. The integral tubular motor and the motor control circuit together provide a current limiting facility for the upper curtain position and back EMF generation for the controlled fail safe descent under gravity The fabric used in the manufacture of the G1K4 curtains is a wire reinforced polymer coated glass cloth with a nominal weight of g/m 2. All curtains are sewn together using stainless steel thread. The head box is manufactured from 18 s.w.g galvanised steel, the box can be powder coated to any standard RAL finish. The bottom bar is manufactured from mild steel angle with an overall dimension of 42 mm. The T bar can be powder coated to any standard RAL finish. Fire curtain systems require side guides to provide a seal between the curtain fabric and the structure of the building. A fire will cause either positive or negative pressures, these pressures can cause a curtain to act like a sail and pull the curtain fabric out of the side guides. GELEC have introduced a fabric retaining system to prevent this occurring. The side guides are manufactured from 18 s.w.g galvanised steel with dimensions of 100 mm D x 50 mm W. Powder coating is available as an optional extra.

5 Specification Single Head Box Double Head Box Side by Side Double Head Box-Over and Under

6 Static Curtains GELEC Fixed Curtain are manufactured as standard from fabrics used in Smoke and Fire Curtains dependant on the project specification. The Fixed Curtain fabric panels would be machine sewn using stainless steel. For wide curtains, the fabric panels are overlapped at vertical joints in order to achieve the integrity of the overall system. The fixings to secure the curtain to the building structure may vary from self tapping screws through galvanised mild steel angle to steel clips that are specifically designed to retain the curtain in place. Bottom pocket hems are used to contain the steel rod which aids the stability of the curtain To ensure that all penetrations are smoke tight the surrounding curtain fabric should be sealed using either metal gaskets or fire resistant tape. Cuts made in the fabric would be sewn using stainless steel thread.

7 Job Reference Hong Kong C C Wu Building, Wanchai Chek Lap Kok Airport Cityplaza, Tai Koo Shing Long Ping Station, West Rail Nam Cheong Station, West Rail Three Pacific Place, No.1 Queen s Road East Tsuen Wan Station, West Rail Yuen Long Station, West Rail Hong Kong Disneyland CHANEL Boutique at Prince Building KPMG Office at Prince Building Queensway Subway, Pacific Place Ocean Terminal - Deck 2 Ocean Park Redevelopment Contract CI05 Lok Ma Chau KCRC Terminus Matilda International Hospital, The Peak Lui Seng Chun Chinese Medical Health Centre Hok Un Redevelopment Phase 3, K.I.L Kai Tak Cruise Terminal Building ESPRIT Boutique at 1 Kowloon Park Drive, TST MIU MIU Boutique at No. 1 Peking Road Market & Shopping Centre, Sha Kok Estate GUCCI Boutique at Lee Garden DIOR Boutique at Landmark Ko Shan Theatre St Paul s Co-Educational College Prada Boutique at Pacific Place Chanel Boutique at Pacific Place Chanel Boutique at Canton Road HSBC L20 Main Building, Central Logistic Centre at Tsing Yi Town Lot No. 180 Office Building at Tsun Yip Street, Kwun Tong Fendi Interior at Landmark Improvement Works at MTR Mei Foo Station Cathay Pacific HKIA Lounges The Wing Macau Nam Wan Lake, Lot 12 Arche De Triumphe Casino Galaxy Casino I & II Sands Macao Macau Studio city

8 GELEC (HK) Limited 香港通用電器有限公司 Units 905B-908, Tower A, Manulife Financial Centre, 223 Wai Yip Street, Kwun Tong, Kowloon, Hong Kong Tel: (+852) Fax: (+852) Web Site: