GB 21976.4-2012 English PDF

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GB 21976.4-2012: Escape apparatus for building fire -- Part 4: Escape slide
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Basic data

Standard ID: GB 21976.4-2012 (GB21976.4-2012)
Description (Translated English): Escape apparatus for building fire -- Part 4: Escape slide
Sector / Industry: National Standard
Classification of Chinese Standard: C85
Classification of International Standard: 13.220.10
Word Count Estimation: 10,125
Quoted Standard: GB/T 191; GB/T 528; GB/T 3512; GB/T 3917.3; GB/T 3923.1; GB/T 5455; GB/T 9969; GB/T 10125-1997; GB/T 13773.1; FZ/T 01034-2008
Regulation (derived from): National Standards Bulletin 2012 No. 13 " building fire escape evacuation equipment " series of national standards released
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Chinese standard specifies the escape chute (hereinafter referred to as slide) models, technical requirements, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to building a fire occurs, the user relie

GB 21976.4-2012: Escape apparatus for building fire -- Part 4: Escape slide

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Escape apparatus for building fire.Part 4. Escape slide ICS 13.220.10 C85 National Standards of People's Republic of China Building fire escape evacuation equipment Part 4. escape chute Part 4. Escapeslide Issued on. 2012-06-29 2012-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Chapter 4, Section 6 of this chapter, Article 7.1 is mandatory, the rest are recommended. GB 21976 "building fire escape evacuation equipment" is divided into the following sections. --- Part 1. with a guide; --- Part 2. escape ease down; --- Part 3. escape ladder; --- Part 4. escape slide; --- Part 5. emergency escape device; --- Part 6. escape justice; --- Part 7. Fire filter self contained breathing apparatus; --- Part 8. Chemical Oxygen fire self contained breathing apparatus; This section GB of Section 421 976. This section drafted in accordance with GB/T 1.1-2009 given rules. This section presents the People's Republic of China Ministry of Public Security. This part of the National Committee for Standardization fire apparatus fire accessories Technical Committee (SAC/TC113/SC5) centralized. This section drafted by. Ministry of Public Security Shanghai Fire Research Institute. The main drafters of this section. Ma Weiguang, Li Baozhong, Han Xiang, Jin Wei, Gu Wenjie, Zhu Fenglin. Building fire escape evacuation equipment Part 4. escape chute

1 Scope

This section GB 21976 specifies the escape chute (hereinafter referred to as the slide) model, technical requirements, test methods, inspection rules, and standard Chi, packaging, transport and storage. This section applies to the building when the fire broke out, the weight of the user to rely on a certain speed in its internal downhill escape, the configuration is not higher than the height 60m and can be used repeatedly flexible slide.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 191 Packaging - Pictorial signs GB/T 528 Determination of vulcanized rubber or thermoplastic rubber tensile stress-strain properties GB/T 3512 vulcanized rubber or thermoplastic rubber hot air and heat accelerated aging test GB/T 3917.3 Textiles - Tear properties of fabrics - Part 3. Determination of trapezoid tear GB/T 3923.1 Textiles Tensile properties of fabrics - Part 1. breaking strength and elongation Strip method GB/T 5455 Textiles - Burning behavior - Vertical method GB/T 9969 General Instructions industrial products GB/T 10125-1997 Corrosion tests in artificial atmospheres - salt spray test GB/T 13773.1 Textiles - Seam tensile properties of fabrics and products - Part 1. the strip method for seam strength determination Flexible Test Method FZ/T 01034-2008 Textiles - Woven fabrics stretch

3 Models

Chute Model Code by a class group and the main parameters, whose form is as follows. Escape Evacuation Equipment D- Escape chute Escape chute length, in meters (m) Example. A length of 20m slide, the model for the TD-20. 4. Technical Requirements 4.1 Structural requirements 4.1.1 inlet chute by a metal frame, metal connectors, slide the main body and the like. 4.1.2 chute body by an outer protective layer, an intermediate layer and an inner conductive slip damping layer and the like three layers of material combinations thereof, may also be the outer protective layer, Damping slip inner conductive layer of the composite material composition floor. 4.1.3 chute expand, extend the length of the protective layer should not exceed the damping layer, a conductive layer or damping slip sliding guide extending the length of the composite layer. 4.1.4 chute inlet connector body and the metal frame should be solid and reliable. 4.1.5 chute exit end can be set to protect the buffer pad or other device. 4.1.6 chute exit end can configure the appropriate weight of sandbags to prevent the use of the outlet end of the chute produce flying, winding and curling, and Chute exit end disposed at its 360 ° azimuth and at night and visible warning signs. 4.2 appearance quality Slide appearance quality should meet the following requirements. a) the constituent material of the body slide in the longitudinal direction should be homogeneous, continuous; b) all parts slide the sewing line should be straight, neat, plain clothes, strong, elastic fit, stitches per 30mm shall not be less than 7-pin; c) the outer surface of the slide metal parts should be smooth, no rust, spots, burrs. 4.3 Material Requirements 4.3.1 flame retardant 5.2.1 shall be specified in the method chute protective layer flame retardancy test, the damage length should not exceed 100mm, and continued burning time Smoldering time shall be no more than 2.0s, there should not melt, drip phenomenon. 4.3.2 Breaking Strength Slide the protective layer, the method specified in 5.2.2 should guide the sliding layer or sliding guide damping composite layer breaking strength test, the protective layer of warp and weft Breaking strength of not less than 785N. Guiding the sliding layer or sliding guide damping composite layer warp and weft breaking strength of not less than 981N. 4.3.3 tearing strength Slide the protective layer, conductive lead slip sliding layer or damping 5.2.3 shall be specified composite layer tear strength test, the protective layer of warp and weft The tear strength of not less than 79N. Guiding the sliding layer or sliding guide damping composite layer warp and weft tear strength of not less than 118N. 4.3.4 seam strength Slide guide method specified in 5.2.4 shall be sliding layer or sliding guide damping composite layer seam strength test, the seam strength should not be less than 650N. 4.3.5 tensile elasticity For slide damping layer made of an elastic woven fabric composite layer damping slide guide method specified in 5.2.5 shall be subjected to a tensile elastic or test, Its zonal elongation of not less than 25%, the zonal deformation rate should not be less than 2%. 4.3.6 rubber physical and mechanical properties For slide damping layer or damping composite layer containing conductive slip rubber material, shall be specified in Table 1 of the pilot projects and tests specified in 5.2.6 Methods of physical and mechanical properties of rubber test. The performance should meet the requirements of Table 1. Table 1 Tensile strength/MPa Elongation at break /% 300% modulus/MPa After heat aging (96h, 90 ℃) Change rate /% Tensile strength elongation at break Shore A hardness change ≥15 ≥500 ≥5 ± 14 ± 20 ± 8 4.4 Performance Requirements 4.4.1 elongation Slide body should be able to withstand elongation tests specified in 5.3.1, the elongation should not exceed 1.5%. 4.4.2 overall tensile strength Chute overall (including entrance metal frame, metal connectors, slide the body, etc.) should be subjected to the provisions of 5.3.2 overall tensile strength test Test, test slide should not crack, fracture, permanent deformation, all connections should not be loose, silk slip and damage. 4.4.3 rate of decline The minimum load specified in Table 2, under standard load and maximum load state, the rate of decline in the slide load should not exceed 4.0m/s. 4.4.4 ground speed In Table 2 below the specified minimum load, the standard load and maximum load state, the inner slide load of the ground speed should be less than 1.0m/s. 4.4.5 Reliability In Table 2 below the specified maximum load state, the method specified in 5.3.5 should slide reliability test, the test should not appear in the slide Crack, fracture, permanent deformation, all connections should not be loose, silk slip and damage. After reliability test slide should be the minimum load, standard The rate of decline quasi-load and maximum load and ground speed test, the rate of decline should be less than 4.0m/s, the speed should be no greater than 1.0m/s. Table 2 Load Category load diameter/mm load value/N The minimum load of 200 ± 10 343 ± 5 Standard load 300 ± 10 687 ± 5 The maximum load of 400 ± 10 981 ± 5 4.4.6 Corrosion Resistance 5.3.6 predetermined method should slide all metal parts of salt spray test, test after its appearance should be no significant corrosion.

5 Test methods

5.1 structure and appearance quality inspection Situation with visual inspection and general gauge slide structures, materials, sewing thread and metal components. 5.2 Material test 5.2.1 Test flame retardant Flame test methods according to GB/T 5455 carried out. 5.2.2 breaking strength test Breaking strength test methods according to GB/T 3923.1 performed. 5.2.3 tearing strength test Tear strength test method according to GB/T 3917.3 performed. 5.2.4 seam strength test Seam strength test methods according to GB/T 13773.1 performed. 5.2.5 tensile elasticity test 5.2.5.1 Determination of zonal elongation press FZ/T 01034-2008 in 8.3.1, concentration is 25N. 5.2.5.2 zonal deformation rate was measured according to FZ/T 01034-2008 in 8.3.6 performed cycles of 10 times. 5.2.6 rubber physical and mechanical properties test 5.2.6.1 The tensile strength was measured according to GB/T 528 performed. 5.2.6.2 Elongation at break measured according to GB/T 528 performed. Determination 5.2.6.3 300% modulus according to GB/T 528 performed. 5.2.6.4 Heat aging test methods according to GB/T 3512 carried out. 5.3 Performance Test 5.3.1 elongation test Interception from the test sample (except for the outer layer of the protective layer) 1m slide body portion at one end with a special holding fixtures, and suspended vertically on a solid Fixed bracket. According to formula (1) Calculation Rally F. Three different locations marked and measuring not less than 300mm long in the initial slide body Value L0, then held the other end of the chute with a special fixture and applying a tensile force of 25% F, measured in three different locations on the body slide again The value of the length L1, according to the formula (2) to calculate elongation, the arithmetic mean as a slide elongation. F = 3 × (687L/5 9.8m) (1) Where. --- F. Tension in Newtons (the N); L --- slide body length in meters (m); m --- slide body mass, in kilograms (kg). L = L1-L0L0 × 100% (2) Where. L --- elongation,%; L0 --- chute initial length in meters (m); Slide length L1 --- after loading in meters (m). 5.3.2 overall tensile strength test Interception 2m slide from the test sample (which should include an inlet portion, the connector, slide the body), the slide in the normal use state Mounted on the mounting bracket and swing, slide (except protective outer layer) of the outlet end by gripping and pulling force F, sustained 2min after the release, Sensory observation chute overall (including entrance metal frame, metal connectors, slide the body, etc.) situation. 5.3.3 Test rate of decline Install guide rails on the test height, chute exit end from the ground 1m, at the entrance of the chute as defined in Table 2 was placed sandbags made The various loads, slipped to the outlet end of the chute, with two timers simultaneously measure the time it fell within the chute. According to the formula (3) CALCULATION Slip speed. The test shall be carried out continuously fell twice. v1 = H (t1 t2)/2 (3) Where. v1 --- the rate of decline in meters per second (m/s); H --- test height in meters (m); t1, t2 --- falling time in seconds (s). 5.3.4 ground speed test Install guide rails on the test height, chute exit end from the ground 1m, at the entrance of the chute as defined in Table 2 was placed sandbags made Various loads, slipped to the ground, with an accuracy of 1% s trigger timer measured down to the ground last 0.5m travel time. According to the formula (4) to calculate the ground speed. The test shall be carried out continuously fell twice. v2 = 0.5t (4) Where. v2 --- ground speed in meters per second (m/s); t --- falling time in seconds (s). 5.3.5 Reliability Test 5.3.3 according to the method of entrance into the slide maximum load sandbags to slip down to the ground. 100 should be carried out continuously drop test Experience, observed during each test slide if cracks, fracture, permanent deformation, loose connections, and other slippery silk and damage. And then into The minimum rate of decline line load, the standard load and the maximum load and ground speed tests. 5.3.6 corrosion resistance test Slide metal parts corrosion test according to GB/T 10125-1997 neutral salt spray test method specified, The test period 120h. After the test sample by sensory observation corrosion.

6 Inspection rules

6.1 Inspection classification Slide into the test material testing, factory inspection and type test. Test items are shown in Table 3. 6.2 material inspection Material inspection body each slide should contain material. The number of layers of material into the plant inspection by sampling each batch, each 1000m of a batch. According to the actual length of less than 1000m as a batch, random 1m2, after passing inspection before receiving. 6.3 factory inspection Each slide should plant product quality inspection departments inspected together with the certificate, before the factory. 6.4 Type inspection 6.4.1 When one of the following conditions, type of inspection should be carried out. a) identification of new products; B) after the official production, if the product structure, materials, production processes are greatly changed; C) After the product long-term shutdown, resume production; d) continuous production for three years; e) the national quality supervision bodies type inspection requirements. table 3 No. Article No. Test items Standard material type test test test factory 1 4.1 Structural requirements - √ √ 2 4.2 Appearance quality - √ √ 3 7.1 marks - √ √ 4 4.4.1 elongation - - √ 5 4.4.2 Overall tensile strength - - √ 6 4.4.3 rate of decline - √ √ 7 4.4.4 landing speed - - √ 8 4.4.5 Reliability - - √ 9 4.4.6 corrosion resistance - - √ 10 4.3.1 flame retardant √ - √ 11 4.3.2 Breaking Strength √ - √ 12 4.3.3 tearing strength √ - √ 13 4.3.4 seam strength √ - √ 14 4.3.5 tensile elastic √ - √ 15 4.3.6 rubber physical and mechanical properties - - √ 6.4.2 type inspection of the test sample, should be inspected each batch of products at random, the number of samples is 1 set. 6.4.3 Interception of the sample material should be tested a sample slide. 6.5 determine the rules 6.5.1 factory inspection Test results of factory inspection items should be fully comply with this part. Before replacing it as the event of failure, the product should be reworked by Submit test. 6.5.2 Type inspection Results type inspection items all satisfy the requirements of this part, judged as qualified. 7 signs, packaging, transportation and storage 7.1 marks 7.1.1 Each slide should be clear of the slide body and the inner package, easy to use method of disappearing, clearly marked with the following. a) Product name, model; b) the product according to the standard number; c) the date of manufacture; d) the name of the manufacturer or authorized representative, trademark; e) Set height; f) use (including installation method); g) safety alert [including use within the slide number limit value (in this section recommends that the value of ≤1 person/5m), should be used to take Under sharp objects, etc.]. 7.1.2 shall be marked on the package the following. a) Product name, model; b) the total quantity and quality; c) box dimensions; d) the production date or production lot; e) marked with rain, sunscreen, anti-hook and other signs, signs should comply with GB/T 191's; f) approval document number; g) manufacturer's name, trademark. 7.2 Packaging 7.2.1 Each slide should have the package, each slide as a set of boxes, external wooden box or carton packaging. 7.2.2 should be supplied with the package the following files. a) product certification; b) the product specification; c) the packing list. Content 7.2.3 product specification shall comply with GB/T 9969's. Product specification shall include at least the following. a) the name of the manufacturer or authorized representative, trademark and address; b) the product name, model; c) Guide (including installation and use of methods, procedures); d) safety precautions; e) self-inspection methods; f) cleaning and maintenance instructions; g) life cycle and retirement conditions; h) Warranty Information (including warranty period, warranty content, warranty method); i) storage conditions; j) Other content statutory and regulatory requirements. 7.3 Transportation and storage 7.3.1 products during handling and transport can not be unloading throwing, should avoid contact with corrosive substances shall be subjected to oil and water contamination. 7.3.2 The product should be stored indoors in a dry ventilated place, avoid direct sunlight, prohibition and grease, acids and corrosive materials mix. ......

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