GB 21976.5-2012Escape apparatus for building fire - Part 5: Escape device (English PDF)

5.2.1 Ropes

5.2.1.1 Wire Rope Aviation should be used with wire rope diameter shall be not less than 3mm, the material shall comply with the YB/T 5197 requirements of.

5.2.1.2 cored rope Cored rope cord rope aviation should be used in diameter shall be not less than 3mm, the material shall comply with the YB/T 5197 requirements of. Outer Material should be cotton or synthetic material. Whole rope should be consistent with the structure, tightly woven, uniform thickness, no distortions.

5.2.2 belt Seat belt material should be cotton or synthetic material. Bandwidth 40mm ~ 80mm, with a thickness of 1mm ~ 3mm, with a length of 1000mm ~ 1800mm, and the length can be adjusted with a buckle by user bust size.

5.2.3 safety hook Safety hook should be made of a metal material and a safety device to prevent misuse of open, reliable safety device should be locked.

5.3 Load Emergency escape the minimum load, the standard load and maximum load shall comply with the provisions in Table 1. Table 1 in units of Newton Load the type of load value The minimum load of 343 ±

5.4 Strength

5.4.1 strength machine Emergency escape should be able to withstand a load of 4 times the maximum tensile load, after strength testing machine, rope, governor and other components should force No significant deformation, breakage, detachment and other anomalies.

5.4.2 belt and metal fittings strength Belts and metal connectors should be able to withstand

6.5 times the maximum load of the tensile load, after strength test, the seat belt webbing, buckles and Metal connectors shall breakage, breakage and shedding and other anomalies.

5.4.3 Safety hook intensity Safety hook shall withstand a tensile load 10000N, after strength test, safety hook body and safety devices must not change significantly changed Shape, fracture, loss and other anomalies.

5.4.4 rope strength Rope should be able to withstand four times the maximum load of the tensile load, after strength testing without obvious deformation, fracture phenomena, there is not rope core It has occurred with the cord from the outer phenomena.

5.5 the rate of decline Minimum load specified in Table 1, the standard load and maximum load state, slow down the rate of decline should be 0.16m/s ~ 1.5m/s.

5.6 Manual speed control function

5.6.1 emergency escape device may be provided with a manual speed control function.

5.6.2 Emergency escape device with manual speed control function, when a user without any speed operation, the rate of decline should be 0.16m/s ~ 1.5m/s.

5.6.3 When the governor put the state governor, the emergency escape the lowering speed can be adjusted to be between 0m/s ~ 1.5m/s.

5.7 Reliability After the emergency escape device reliability test trials the rate of decline, the rate of decline should be 0.16m/s ~ 1.5m/s. In the test Governor, carabiners, ropes and other components should be no deformation, damage and other anomalies.

5.8 Corrosion Resistance Emergency escape the metal parts should be corrosion-resistant materials or by the anti-corrosion treatment. After salt spray test, the metal emergency escape Member should be no significant corrosion. Then test the rate of decline, the rate of decline should be 0.16m/s ~ 1.5m/s.

6.1 Test conditions

6.1.1 The test conditions the rate of decline in wind speed should not be greater than 2m/s is the next.

6.1.2 When the rope length of the sample is less than 15m, lowering speed test test height rope length; when the rope length of the sample is not Less than 15m, height drop test speed test is 15m.

6.2 appearance quality inspection Were visually emergency escape device for visual quality inspection.

6.3 The main parts of the structure, size and material inspection

6.3.1 ropes By visual inspection reports and viewing the material against the ropes methods of structure and materials to be checked. Then direct measurements with a universal measuring rope Diameter, measure any 3 points, the arithmetic average of three points.

6.3.2 belt By visual inspection reports and viewing materials approach to belt structure and materials to be checked. Then general gauge measuring safety With length, width and thickness, measure any 3 points, the arithmetic average of three points.

6.3.3 safety hook By visual inspection reports and viewing material on the structure of the method, materials and safety hook safety device to be checked.

6.4 Strength Test

6.4.1 strength test machine The emergency escape device with a rope clamp is connected, the system sets the ring, were set in the test with a retractor device carrying emergency escape rope hanging ears and collar On, and up and down and pulling machine is connected to the fixture. The Rally stretching speed is set at 100mm/min, and then the emergency escape device is applied four times the Large load tensile load, keeping 5min.

6.4.2 strength test belts and metal fittings The end of the seat belt and the metal connectors are clamped by the upper and lower jigs Rally, Rally stretching speed is set at 100mm/min, Then applying a load of

6.5 times the maximum tensile load on the specimen and keep 5min.

6.4.3 safety hook strength test The ends of the hook and the longitudinal direction, respectively, the upper and lower jigs Rally connected safety device is in the locked state, pulling machine tensile speed transfer Set at 30mm/min, and then applying a tensile load of 10000N safety hook to keep 5min.

6.4.4 rope strength test The length of the rope specimen shall be not less than 300mm, and will be connected to both ends of the upper and lower jigs Rally, Rally stretching speed is set at 100mm/min, and then applying a load of 4 times the maximum tensile load on the specimen and keep 5min.

6.5 lowering speed test The emergency escape device to test the suspension height, the load applied to the various provisions in Table 1 rappel end, it fell to the ground. With timer (1) to calculate the rate of decline decreased measurement time according to the equation. v = Ht (1) Where. v

--- lowering speed in meters per second (m/s); H

--- test height in meters (m); t

--- fall time in seconds (s).

6.6 speed manual function test The emergency escape device to test the suspension height, the rope end dropped by applying various loads specified in Table 1, it fell to the ground during the test The emergency escape any regulation the governor.

6.7 Reliability Test According to the method of 6.5, the emergency escape device Rappelling side to exert maximum load, it fell to the ground. Continuous drop test 20 times. Each test intervals of not more than 5min. Then drop emergency escape rope load is applied to the end specified in Table 1, it fell to the ground. Each load was carried out on both test drops, each drop velocity calculation.

6.8 corrosion test Emergency escape is by the use of state placed in the salt spray test chamber, the inside temperature was maintained at 35 °C ± 2 °C, the concentration of 5% chloride Aqueous solution of sodium injection pressure 0.07MPa ~ 0.17MPa 8h continuous spray after spraying is stopped and turned off the heating controller, let it Cooling 16h, 24h in a cycle, a total of five test cycles. Then rinse the deposited salt, dried naturally 24h. press Method 6.5, the emergency escape device Rappelling end load is applied to the standard, it fell to the ground. Drop test shall be carried out twice in a row, the calculation Every time the rate of decline.

7.1 Type inspection

7.1.1 Type inspection requirements of this section shall be the inspection of all projects.

7.1.2 When one of the following conditions, type of inspection should be carried out.

a) identification of new products into production time; B) after the official production, product structure, materials, production processes are greatly changed;

c) Product Discontinuance more than one year, the production recovery;

d) continuous production for three years;

e) the national quality supervision bodies type inspection requirements.

7.2 Factory inspection

7.2.1 Products shall plant quality inspection departments qualified along with the certificate, before the factory.

7.2.2 factory inspection of project-based section

5.1 to 5.6. Among them,

5.2 will be seized for the project, from

5.6 for the sampling project.

7.3 Sampling

7.3.1 Type inspection should be factory inspection of products at random five.

7.3.2 factory inspection to 100 as the number of samples sampling project should not be less than 10%; less than 100 when batch sampling projects Samples should not be less than three.

7.4 Determine the rules

7.4.1 Type inspection Results type inspection items all satisfy the requirements of this part, judged as qualified.

7.4.2 factory inspection The test results will be seized items should be fully comply with this part. Any non-conformity, the product should only be resubmitted after rework test. Test results of sampling programs should be fully comply with this part. Any non-conformity, should be retested after double sampling; If you still do not match Co-item, the batch of products as unqualified. 8 signs, packaging, transportation and storage

8.1.1 Each product shall be accompanied by a name plate, indicating the following.

a) Product name, model;

b) the implementation of the standard code;

c) length of the rope;

e) plant names, trademarks;

f) the date of production or serial number;

g) safety alerts (including "no oiling", "single use" word).

8.1.2 shall be marked on the package the following.

a) Product name, model;

b) production plant name, trademarks, site;

c) the date of production or serial number;

d) the number of products;

8.2 Packaging

8.2.1 The product should be stored in plastic bags with the whole package. In order to prevent friction and collision between parts, application of foam or cardboard barrier protection, external wood Box or carton packaging. Within

8.2.2 crates should be shipped with file.

a) product certification;

b) the product specification;

c) the packing list. Content

8.2.3 product specification shall comply with GB/T 9969, the product and the installation, use, safety precautions, maintenance Life cycle and make a statement.

8.3 Transport Product handling and transport should not be throwing unloading should avoid contact with corrosive substances, avoid oil and water contamination.

8.4 Storage Products should be stored indoors in a dry ventilated place, avoid direct sunlight, should not be fat, acids and corrosive materials mix.