Cooper Crouse Hinds EVLS HAZARD-GARD Explosion proof Lamp Installation and Maintenance

Scope of application and core protection characteristics

​Adaptation of Hazardous Areas and Environment

Specific scope of adaptation category

Hazardous Area Classification 1: Class I Division 1 (Groups B/GB, C, D); 2. Class I Zone 1 (Group IIB+H2, with GB suffix); 3. Class II and Class III zones; 4. There are multiple types of hazardous environments present simultaneously

Environmental type: humid environment (compliant with UL1598), marine environment (compliant with UL1598A)

Protection level Type 4X (anti-corrosion, dustproof, splash proof), IP66 (completely dustproof, strong waterproof)

Key Usage Restrictions

Environmental temperature: shall not exceed the maximum environmental temperature indicated on the lamp nameplate, and the operating temperature (T code) shall not exceed the ignition temperature of the hazardous environment;

Installation posture: The lamp holder must be facing upwards and the angle with the vertical direction should not exceed 25 °;

Sealing requirements: All sealing gaskets must be clean and undamaged, and the threads must be fully engaged to ensure explosion-proof integrity;

Light source limitation: Only use lamps of the type and power specified on the nameplate, and do not mix other specifications.

Core Product Parameters

Category specific parameters

Voltage specifications can be selected as 120V/208V/220V/240V/277V/480V, supporting three tap and multi tap configurations (default 277V at the factory)

Light source parameter types: High pressure sodium lamp (HPS), metal halide lamp (MH); Power: 50W, 70W, 100W, 150W, 175W; Lamp holder: Only medium-sized lamp holders

Optional functions include ballast protection (catalog suffix BG, only HPS 50-150W), fast reignition (catalog suffix IR, only HPS 50-150LX W), fuse (catalog suffix S658, only MH 175W)

The complete structure of the lighting fixture includes: ballast lamp housing, installation module, (optional) protective cover/reflector

Installation specifications and procedures

Preparation before installation

Personnel requirements: Only qualified electricians are allowed to operate and must be familiar with NEC Article 501 (CEC Section 18) and local electrical regulations;

Tools and materials: Corresponding specifications of fasteners need to be prepared (4 5/16 “fasteners for ceiling installation, 2 3/8” fasteners for wall/bulkhead, not included), Crouse Hinds HTL lubricant, and power cables that meet temperature ratings;

Safety prerequisite: The power must be disconnected throughout the installation/maintenance process to ensure that the lighting fixture is cooled before operation.

Installation module and fixing requirements

The product provides 5 installation modules, with unified core installation requirements:

Thread lubrication: All installation module threads should be lightly coated with HTL lubricant to prevent biting and jamming;

Conduit sealing: Complete the conduit sealing according to the requirements in Table 1 to avoid the risk of explosion;

|Installation module combination | Group C&D sealing distance | Group B sealing distance|

|EVSA adapter+EV ceiling installation | 5 feet (1.5m) | 18 inches (45cm)|

|EVSJ Column Installation | – | 10 Feet (3m)|

|EVSA adapter+EVMJ column installation | – | 18 inches (45cm)|

|EVSA adapter+EV wall bracket | – | 18 inches (45cm)|

|EVSA adapter+EVJ bulkhead installation | – | Not applicable|

Fixed torque: The wheel hub locking screw needs to be tightened to a torque of 40 pounds inches;

Idle opening: Unused conduit openings must be equipped with accompanying plugs and secured.

Wiring process (key steps)

Dismantling the junction box: unscrew 2 chrome plated screws and remove the junction box;

Wiring: Introduce on-site cables into the installation module;

Grounding connection: Connect the circuit grounding wire to the green grounding wire of the installation module; If the wiring system does not have an independent grounding wire, the module grounding wire should be capped or removed;

Power connection: Connect the ungrounded main power supply line to the black wire in the junction box, and connect the other power supply line to the red wire;

Voltage adaptation: The default voltage at the factory is 277V. When other voltages are required, disconnect the ballast 277V lead, connect the target voltage lead, and seal the 277V lead with a crimping connector;

Fixed and reset: Tighten all electrical connections, put the junction box back into the installation module, and tighten the screws;

Lamp assembly: Apply HTL lubricant to the thread of the lampshade, screw it tightly to the O-ring, and tighten the fixing screws; Fully screw the lamp into the installation module and tighten the locking screw (40 pound inch);

Optional accessory installation: Reflector (RA725 angular/RD725 spherical) and protective cover (P515 metal wire/EV502 cast) need to be installed in the order of “reflector first, protective cover later”, using a total of 3 fixing screws.

Maintenance and Replacement

Maintenance cycle and content

Cycle requirement: At least once a year, the specific frequency should be adjusted according to the usage environment and frequency. It is recommended to follow NFPA 70B “Recommended Practice for Electrical Equipment Maintenance”;

Core maintenance items:

Cleaning: Use a clean damp cloth to wipe the lampshade, protective cover, and reflector. For stubborn stains, use mild soap or Collinite NCF, Duco # 7 cleaner. Do not use abrasives or strong acid/alkali cleaners;

Electrical inspection: Check the electrical continuity of the contact ring of the junction box, lightly polish to remove surface contaminants; Ensure that all connections are clean and securely fastened;

Mechanical inspection: visually inspect for overheating (discoloration of wires/components), water leakage, corrosion, component damage, etc., replace worn/damaged components, clean sealing gaskets;

Assembly inspection: Confirm that all components are assembled correctly, the threads are fully engaged, and the sealing gasket is intact.

Lamp replacement process

Power off cooling: Disconnect the power supply and wait for the lamp to completely cool down (to avoid burns);

Dismantling the lampshade: Loosen the fixing screws of the lampshade, unscrew the lampshade (if it is difficult to rotate, a straight screwdriver can be inserted into the lifting groove to pry it);

Replacing lighting fixtures: Remove the old lamp and install a new lamp that matches the model, size, and power indicated on the nameplate, ensuring that it is tightened (to prevent damage to the ballast and lamp holder);

Sealing gasket treatment: thoroughly clean or replace the sealing gasket;

Reset: Apply HTL lubricant to the thread of the lampshade, screw it back to its original position, and tighten the fixing screws.

Replacement of Accessories

The EVLS series lighting fixtures are designed to have a long service life. If replacement parts (such as gaskets, junction boxes, ballasts, etc.) are needed, they can be obtained through Cooper Crouse Hinds authorized dealers or by contacting local representatives or the US headquarters (address: P.O. Box 4999, Syracuse, New York 13221); Phone: 315-477-7000) for support.

Safety Warning (Core Taboo)

Non qualified electricians are prohibited from operating, and power must be cut off before installation/maintenance;

Prohibit the use of non compliant light sources, cables, or accessories;

Prohibited from use in scenarios where the ambient temperature exceeds the range indicated on the nameplate;

Prohibit powering on unsealed conduits or when the sealing distance does not meet the standard;

It is prohibited to install the lamp holder facing downwards or deviating from the vertical direction by more than 25 degrees;

Do not use sharp tools or corrosive cleaning agents to clean the lighting fixtures.